WO2008132069A2 - Use of pure carbon dioxide as an inerting and flow medium in powder injection systems for use in pulverized coal gasification under pressure - Google Patents
Use of pure carbon dioxide as an inerting and flow medium in powder injection systems for use in pulverized coal gasification under pressure Download PDFInfo
- Publication number
- WO2008132069A2 WO2008132069A2 PCT/EP2008/054706 EP2008054706W WO2008132069A2 WO 2008132069 A2 WO2008132069 A2 WO 2008132069A2 EP 2008054706 W EP2008054706 W EP 2008054706W WO 2008132069 A2 WO2008132069 A2 WO 2008132069A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon dioxide
- pulverized coal
- inerting
- heated
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/78—High-pressure apparatus
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/156—Sluices, e.g. mechanical sluices for preventing escape of gas through the feed inlet
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0969—Carbon dioxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Definitions
- the subject of the application relates to a method and an arrangement for operating a Staubeintragsystems for pulverized coal gasification with the features of claim 1 or 3.
- Nitrogen from the air separation plant is usually used as the inerting and conveying medium in pneumatically operated dust introduction systems of pulverized coal gasification plants.
- This process variant has proven itself both in entry systems for pulverized coal injection in blast furnaces and for pulverized coal gasification plants and is technically largely mature.
- the flash gas of the dust entry locks as well as the excess gas accumulating under certain operating conditions in the metering vessel are already dedusted before being discharged into the atmosphere under increased operating pressures in special filter vessels.
- the dust injection systems operate on the basis of pneumatic dense phase conveying with very high load ratios, the nitrogen input into the gasification systems in many cases exceeds the permissible limits. The reason for this is also the increasing process pressure in most applications.
- pulverized coal gasification with the aim of generating synthesis gas for the production of different hydrocarbons there is the demand for a limitation of the nitrogen content in the product gas.
- the subject of the application is the problem of further developing a method and an arrangement of a Staubeintragsystems for pulverized coal gasification such that the nitrogen input into the subsequent gasification system and the associated disadvantages are avoided.
- the problem is solved by the features of claims 1 and 3, respectively.
- the dust-entry lock is supplied as an inerting and conveying medium and the metering vessel as the fluidizing gas carbon dioxide CO 2.
- the sections of the plant operated with essentially pure carbon dioxide are heated to such an extent that a temperature above the limit of the two-phase area is present.
- the invention makes use of the fact that not all components must be operated with carbon dioxide, but the bunker as inerting and loosening medium - with reduced effort compared to carbon dioxide - heated nitrogen is supplied.
- FIG. 1 shows a schematic representation of a coal dust entry system according to the invention
- a standing under ambient pressure and heated bunker BK for storing solid FS such.
- solid FS such as coal dust
- N 2 heated as inerting and loosening medium heated nitrogen
- the solid material can be fed to a dust entry lock SES that is under an operating high pressure of, for example, 40 bar.
- the dust entry lock can be fed as an inerting and conveying medium carbon dioxide CO 2 with a temperature above the boundary to the two-phase region at high operating pressure.
- the expansion gas is removed, depressurized via a multistage expansion device mEV to ambient pressure and dedusted in a subsequent filter F under ambient pressure.
- the celebration- Substance transfer from the dust entry locks into the metering vessel DG takes place by gravity conveying via a sufficiently dimensioned downpipe. Two to four dust entry locks are used per dust entry system.
- fluidizing gas carbon dioxide is used.
- the fluidizing gas By the fluidizing gas, a partial fluidized bed is generated in the lower part of the dosing.
- the pulverized coal is transferred from the state of a dust filling in the fluidized bed and thus at the same time in the conveying state. Since it was ensured by the preceding method steps that the void volume of the dust fill in the dosing is filled with carbon dioxide and carbon dioxide is used for the fluidization, the dust gas at the conveyor line inlet FLE to the reactor almost completely from this gas component.
- Carbon dioxide is also used as injection gas.
- the injection gas is introduced into the pulverized coal delivery lines. Injection gas supplies may be required to detect fast enough the carbon dust feed to the reactor.
- the requirement for limitation of the nitrogen content in the product gas from pulverized coal gasification is taken into account by the use of carbon dioxide as the inerting and conveying medium in the coal dust introduction system.
- thermodynamic properties of carbon dioxide because of the thermodynamic properties of carbon dioxide, however, here are some special considerations.
- pure carbon dioxide at the desired process pressures above 40 bar already reaches the boundary to the two-phase region at ambient temperature.
- sufficiently high operating temperatures must always be ensured in all process sections which are operated at or above the required process pressures with pure carbon dioxide.
- the carbon dioxide is already taken over at the plant boundary with a sufficiently high temperature. The cooling of the gas in the storage, forwarding and the process-specific use itself is counteracted by a suitable heating system.
- the pressure of the slightly dust-laden flash gas is reduced by multi-stage relaxation devices mEV.
- the dedusting of the flash gas is then carried out in a working under ambient pressure filter F.
- the pipe section between the lock and the expansion device is heated in order to compensate for the polytropic expansion cooling and to adhere to the permissible working conditions of the expansion filter.
- the expansion device is designed so that at the same time the relaxation noise is reduced.
- Silencerplates be used as a relaxation device known, for example, known in the art. This will ken a reduction of the relaxation noise on the one hand by multi-stage relaxation and on the other hand by splitting the total required bore cross section on a variety of smaller holes. It is also a wear-protected control valve with downstream Silencer used. If these measures are not sufficient, additional soundproofing measures can be used, for example by means of a sound-insulating sheathing.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Beschreibungdescription
Einsatz von reinem Kohlendioxid als Inertisierungs- und Fördermedium in Staubeintragsystemen für die Kohlenstaub- druckvergasungUse of pure carbon dioxide as an inerting and conveying medium in dust injection systems for pulverized coal gasification
Der Anmeldungsgegenstand betrifft ein Verfahren und eine Anordnung zum Betrieb eines Staubeintragsystems für die Kohlenstaubdruckvergasung mit den Merkmalen des Anspruchs 1 bzw. 3.The subject of the application relates to a method and an arrangement for operating a Staubeintragsystems for pulverized coal gasification with the features of claim 1 or 3.
Als Inertisierungs- und Fördermedium in pneumatisch arbeitenden Staubeintragsystemen von Anlagen zur Kohlenstaubdruckvergasung wird üblicherweise Stickstoff aus der Luftzerlegungs- anläge eingesetzt. Diese Verfahrensvariante hat sich sowohl in Eintragsystemen für die Kohlenstaubinjektion in Hochöfen als auch für Kohlenstaubdruckvergasungsanlagen bewährt und ist technisch weitgehend ausgereift. Vorteilhafterweise werden hierbei das Entspannungsgas der Staubeintragsschleusen sowie das unter bestimmten Betriebsbedingungen im Dosiergefäß anfallende Überschussgas vor der Abgabe in die Atmosphäre bereits unter erhöhten Betriebsdrücken in speziellen Filtergefäßen entstaubt. Obwohl die Staubeintragssysteme auf der Basis der pneumatischen Dichtstromförderung mit sehr hohen Beladungsverhältnissen arbeiten, überschreitet der Stickstoffeintrag in die Vergasungssysteme in vielen Fällen die zulässigen Grenzen. Ursache hierfür ist auch der in den meisten Anwendungsfällen ansteigende Verfahrensdruck. Insbesondere für die Kohlenstaubdruckvergasung mit der Zielstel- lung Synthesegaserzeugung für die Produktion unterschiedlicher Kohlenwasserstoffe ergibt sich die Forderung nach einer Begrenzung des Stickstoffanteils im Produktgas.Nitrogen from the air separation plant is usually used as the inerting and conveying medium in pneumatically operated dust introduction systems of pulverized coal gasification plants. This process variant has proven itself both in entry systems for pulverized coal injection in blast furnaces and for pulverized coal gasification plants and is technically largely mature. Advantageously, the flash gas of the dust entry locks as well as the excess gas accumulating under certain operating conditions in the metering vessel are already dedusted before being discharged into the atmosphere under increased operating pressures in special filter vessels. Although the dust injection systems operate on the basis of pneumatic dense phase conveying with very high load ratios, the nitrogen input into the gasification systems in many cases exceeds the permissible limits. The reason for this is also the increasing process pressure in most applications. In particular for pulverized coal gasification with the aim of generating synthesis gas for the production of different hydrocarbons, there is the demand for a limitation of the nitrogen content in the product gas.
Dem Anmeldungsgegenstand liegt das Problem zugrunde, ein Verfahren bzw. eine Anordnung eines Staubeintragsystems für die Kohlenstaubdruckvergasung derart weiterzubilden, dass der Stickstoffeintrag in das nachfolgende Vergasungssystem und die damit einhergehenden Nachteile vermieden werden. Das Problem wird durch die Merkmale des Anspruchs 1 bzw. 3 gelöst .The subject of the application is the problem of further developing a method and an arrangement of a Staubeintragsystems for pulverized coal gasification such that the nitrogen input into the subsequent gasification system and the associated disadvantages are avoided. The problem is solved by the features of claims 1 and 3, respectively.
Erfindungsgemäß wird der Staubeintragschleuse als Inertisie- rungs- und Fördermedium sowie dem Dosiergefäß als Fluidisie- rungsgas Kohlendioxid CO2 zugeführt. Die mit im Wesentlichen reinem Kohlendioxid betriebenen Anlagenabschnitte werden soweit beheizt, dass eine Temperatur oberhalb der Grenze zum Zweiphasengebiet gegeben ist. In vorteilhafter Weise macht sich die Erfindung zu nutze, dass nicht sämtliche Komponenten mit Kohlendioxid betrieben werden müssen, vielmehr dem Bunker als Inertisierungs- und Auflockerungsmedium - mit verringertem Aufwand gegenüber Kohlendioxid - erhitzter Stickstoff zugeführt wird.According to the invention, the dust-entry lock is supplied as an inerting and conveying medium and the metering vessel as the fluidizing gas carbon dioxide CO 2. The sections of the plant operated with essentially pure carbon dioxide are heated to such an extent that a temperature above the limit of the two-phase area is present. Advantageously, the invention makes use of the fact that not all components must be operated with carbon dioxide, but the bunker as inerting and loosening medium - with reduced effort compared to carbon dioxide - heated nitrogen is supplied.
Vorteilhafte Weiterbildungen des Anmeldungsgegenstandes sind in den Unteransprüchen angegeben.Advantageous developments of the subject of the application are specified in the dependent claims.
Der Anmeldungsgegenstand wird im Folgenden als Ausführungsbeispiel in einem zum Verständnis erforderlichen Umfang anhand einer Figur näher erläutert. Dabei zeigt: Fig. 1 eine prinzipielle Darstellung eines erfindungsgemäßen Kohlenstaub-EintragsystemsThe subject of the application is explained in more detail below as an exemplary embodiment in a scope necessary for understanding with reference to a figure. 1 shows a schematic representation of a coal dust entry system according to the invention
Einem unter Umgebungsdruck stehenden und beheizbaren Bunker BK zur Bevorratung von Feststoff FS, wie z. B. Kohlenstaub, ist als Inertisierungs- und Auflockerungsmedium erhitzter Stickstoff N2 zuführbar. Über eine Fördereinrichtung ist der Feststoff einer unter einem Betriebshochdruck von beispielsweise 40 bar stehenden Staubeintragschleuse SES zuführbar. Der Staubeintragschleuse ist als Inertisierungs- und Fördermedium Kohlendioxid CO2 zuführbar mit einer Temperatur oberhalb der Grenze zum Zweiphasengebiet bei Betriebshochdruck. Im oberen Bereich der Staubeintragschleuse wird das Entspannungsgas abgeführt, über eine mehrstufige Entspannungsvorrichtung mEV auf Umgebungsdruck entspannt und in einem nachfolgenden Filter F unter Umgebungsdruck entstaubt. Die Fest- Stoffübernahme aus den Staubeintragschleusen in das Dosiergefäß DG erfolgt durch Schwerkraftförderung über eine ausreichend dimensionierte Fallleitung. Je Staubeintragsystem sind zwei bis vier Staubeintragschleusen im Einsatz.A standing under ambient pressure and heated bunker BK for storing solid FS, such. As coal dust, is heated as inerting and loosening medium heated nitrogen N 2 fed. Via a conveyor, the solid material can be fed to a dust entry lock SES that is under an operating high pressure of, for example, 40 bar. The dust entry lock can be fed as an inerting and conveying medium carbon dioxide CO 2 with a temperature above the boundary to the two-phase region at high operating pressure. In the upper part of the dust entry lock, the expansion gas is removed, depressurized via a multistage expansion device mEV to ambient pressure and dedusted in a subsequent filter F under ambient pressure. The celebration- Substance transfer from the dust entry locks into the metering vessel DG takes place by gravity conveying via a sufficiently dimensioned downpipe. Two to four dust entry locks are used per dust entry system.
Als Fluidisierungsgas wird Kohlendioxid genutzt. Durch das Fluidisierungsgas wird im Unterteil des Dosiergefäßes eine partielle Wirbelschicht erzeugt. Hierbei wird der Kohlenstaub aus dem Zustand einer Staubschüttung in den Wirbelschicht- und damit zugleich in den Förderzustand überführt. Da durch die vorhergehenden Verfahrensschritte sichergestellt wurde, dass das Lückenvolumen der Staubschüttung im Dosiergefäß mit Kohlendioxid gefüllt ist und für die Fluidisierung ebenfalls Kohlendioxid eingesetzt wird, besteht das Staubbegleitgas am Förderleitungseintritt FLE zum Reaktor nahezu vollständig aus dieser Gaskomponente.As fluidizing gas carbon dioxide is used. By the fluidizing gas, a partial fluidized bed is generated in the lower part of the dosing. Here, the pulverized coal is transferred from the state of a dust filling in the fluidized bed and thus at the same time in the conveying state. Since it was ensured by the preceding method steps that the void volume of the dust fill in the dosing is filled with carbon dioxide and carbon dioxide is used for the fluidization, the dust gas at the conveyor line inlet FLE to the reactor almost completely from this gas component.
Als Injektionsgas wird ebenfalls Kohlendioxid genutzt. Das Injektionsgas wird in die Kohlenstaubförderleitungen einge- leitet. Injektionsgaszuführungen können erforderlich werden, um Störungen der Kohlenstaubzuführung zum Reaktor schnell genug zu erkennen.Carbon dioxide is also used as injection gas. The injection gas is introduced into the pulverized coal delivery lines. Injection gas supplies may be required to detect fast enough the carbon dust feed to the reactor.
Erfindungsgemäß wird der Forderung nach Begrenzung des Stick- Stoffanteils im Produktgas aus der Kohlenstaubdruckvergasung durch den Einsatz von Kohlendioxid als Inertisierungs- und Fördermedium im Kohlenstaubeintragsystem Rechnung getragen.According to the invention, the requirement for limitation of the nitrogen content in the product gas from pulverized coal gasification is taken into account by the use of carbon dioxide as the inerting and conveying medium in the coal dust introduction system.
Wegen der thermodynamischen Eigenschaften von Kohlendioxid sind hierbei jedoch einige Besonderheiten zu beachten. Insbesondere ist zu berücksichtigen, dass reines Kohlendioxid bei den angestrebten Verfahrensdrücken oberhalb 40 bar bereits bei Umgebungstemperatur die Grenze zum Zweiphasengebiet erreicht. Um das zu vermeiden, sind in sämtlichen Verfahrens- abschnitten, die bei bzw. oberhalb der erforderlichen Verfahrensdrücke mit reinem Kohlendioxid betrieben werden, stets ausreichend hohe Betriebstemperaturen zu gewährleisten. Das Kohlendioxid wird bereits an der Anlagengrenze mit ausreichend hoher Temperatur übernommen. Der Abkühlung des Gases bei der Bevorratung, Fortleitung sowie der verfahrensspezifischen Nutzung selbst ist durch ein geeignetes Beheizungs- System entgegenzuwirken.Because of the thermodynamic properties of carbon dioxide, however, here are some special considerations. In particular, it should be noted that pure carbon dioxide at the desired process pressures above 40 bar already reaches the boundary to the two-phase region at ambient temperature. In order to avoid this, sufficiently high operating temperatures must always be ensured in all process sections which are operated at or above the required process pressures with pure carbon dioxide. The carbon dioxide is already taken over at the plant boundary with a sufficiently high temperature. The cooling of the gas in the storage, forwarding and the process-specific use itself is counteracted by a suitable heating system.
Von besonderer Bedeutung ist es, die Temperatur des in der vorgeschalteten Mahltrocknungsanlage erzeugten Kohlenstaubs bis zum Eintritt in den Reaktor durchgängig auf einem mög- liehst hohen Niveau zu halten. Aus diesem Grund wird auch der bei Umgebungsdruck arbeitende und mit Stickstoff als Inerti- sierungs- und Auflockerungsmedium beaufschlagte Kohlenstaubbunker beheizt. Ebenso wird der zugeführte Stickstoff erwärmt, um eine Staubabkühlung z.B. bei längeren Anlagen- stillständen zu vermeiden. Erfindungsgemäß ist eine durchgängige Beheizung in den Verfahrensabschnitten Gasspeicherung, - fortleitung und Dosiersystem selbst gegeben.It is of particular importance to keep the temperature of the pulverized coal produced in the preceding mill drying plant at a highest possible level until it enters the reactor. For this reason, the coal dust bunker operating at ambient pressure and charged with nitrogen as an inerting and loosening medium is also heated. Also, the supplied nitrogen is heated to prevent dust cooling, e.g. to avoid during longer plant downtimes. According to the invention, continuous heating is provided in the process sections gas storage, transfer and metering system itself.
Um Probleme durch verminderte Einsatzdauer von Filterelemen- ten durch Anfall von flüssigem Kohlendioxid infolge der polytropen Abkühlung des Mediums bei der Schleusenentspannung auszuschließen, wird auf die Entstaubung des Entspannungsgases unter erhöhtem Betriebsdruck verzichtet.In order to exclude problems due to reduced service life of filter elements due to the accumulation of liquid carbon dioxide due to the polytropic cooling of the medium in the lock release, the dedusting of the expansion gas under increased operating pressure is dispensed with.
Der Druck des in geringem Maße staubbeladenen Entspannungsgases wird über mehrstufig ausgeführte Entspannungsvorrichtungen mEV abgebaut. Die Entstaubung des Entspannungsgases erfolgt im Anschluss in einem unter Umgebungsdruck arbeitenden Filter F.The pressure of the slightly dust-laden flash gas is reduced by multi-stage relaxation devices mEV. The dedusting of the flash gas is then carried out in a working under ambient pressure filter F.
Der Rohrleitungsabschnitt zwischen Schleuse und Entspannungsvorrichtung wird beheizt, um die polytrope Entspannungskälte zu kompensieren und die zulässigen Arbeitsbedingungen des Entspannungsfilters einzuhalten. Die Entspannungsvorrichtung wird so ausgeführt, dass gleichzeitig die Entspannungsgeräusche vermindert werden. Als Entspannungsvorrichtung werden beispielsweise in Fachkreisen bekannte, sogenannte Silencerplates eingesetzt. Diese bewir- ken eine Minderung der Entspannungsgeräusche einerseits durch mehrstufige Entspannung und andererseits durch Aufteilung des insgesamt erforderlichen Bohrungsquerschnitts auf eine Vielzahl kleinerer Bohrungen. Es ist auch ein verschleißgeschütztes Regelventil mit nachgeschaltetem Silencer einsetzbar. Falls diese Maßnahmen nicht ausreichen sind zusätzlichen Schallschutzmaßnahmen, wie zum Beispiel mittels einer schalldämmenden Ummantelung, einsetzbar. The pipe section between the lock and the expansion device is heated in order to compensate for the polytropic expansion cooling and to adhere to the permissible working conditions of the expansion filter. The expansion device is designed so that at the same time the relaxation noise is reduced. As a relaxation device known, for example, known in the art, so-called Silencerplates be used. This will ken a reduction of the relaxation noise on the one hand by multi-stage relaxation and on the other hand by splitting the total required bore cross section on a variety of smaller holes. It is also a wear-protected control valve with downstream Silencer used. If these measures are not sufficient, additional soundproofing measures can be used, for example by means of a sound-insulating sheathing.
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200880014340A CN101679887A (en) | 2007-04-30 | 2008-04-18 | Use of pure carbon dioxide as inerting and conveying medium in powder feed systems for pressurized gasification of pulverized coal |
| DE112008000642T DE112008000642A5 (en) | 2007-04-30 | 2008-04-18 | Use of pure carbon dioxide as an inerting and conveying medium in the dust feed system for pulverized coal gasification |
| US12/598,069 US20100147413A1 (en) | 2007-04-30 | 2008-04-18 | Use of pure carbon dioxide as an inerting and flow medium in powder injection systems for use in pulverized coal gasification under pressure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007020333A DE102007020333A1 (en) | 2007-04-30 | 2007-04-30 | Use of pure carbon dioxide as an inerting and conveying medium in dust injection systems for pulverized coal gasification |
| DE102007020333.2 | 2007-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2008132069A2 true WO2008132069A2 (en) | 2008-11-06 |
| WO2008132069A3 WO2008132069A3 (en) | 2008-12-31 |
Family
ID=39743053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/054706 Ceased WO2008132069A2 (en) | 2007-04-30 | 2008-04-18 | Use of pure carbon dioxide as an inerting and flow medium in powder injection systems for use in pulverized coal gasification under pressure |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100147413A1 (en) |
| CN (1) | CN101679887A (en) |
| DE (2) | DE102007020333A1 (en) |
| WO (1) | WO2008132069A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154029A (en) * | 2009-12-21 | 2011-08-17 | 南方服务有限公司 | A high pressure feeder and method of operation to feed granular or fine materials |
| US20110233471A1 (en) * | 2008-12-09 | 2011-09-29 | Uhde Gmbh | Method and system for supplying a reactor for generating crude synthesis gas |
| CN102549116A (en) * | 2009-08-12 | 2012-07-04 | 蒂森克虏伯伍德有限公司 | Method for supplying an entrained flow gasification reactor with carbon-containing fuels |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8951315B2 (en) * | 2008-11-12 | 2015-02-10 | Exxonmobil Research And Engineering Company | Method of injecting fuel into a gasifier via pressurization |
| DE102009006384A1 (en) | 2009-01-28 | 2010-08-19 | Uhde Gmbh | Method for supplying an entrainment gasification reactor with fuel from a reservoir |
| DE102009006878A1 (en) * | 2009-01-30 | 2010-08-12 | Uhde Gmbh | Method for discharging the dust generated during the operation of a dedusting plant for pipe gas |
| DE102009048931B4 (en) * | 2009-10-10 | 2014-06-18 | Linde Ag | Dosing system, dense phase conveying system and method for feeding dusty bulk material |
| CN102250642A (en) * | 2011-06-03 | 2011-11-23 | 中国中煤能源股份有限公司 | Dry pulverized coal wet loading method and loading system using same |
| DE102013018332A1 (en) * | 2013-10-31 | 2015-04-30 | Linde Aktiengesellschaft | Device for introducing solid organic feed into a gasification plant |
| CN104194839B (en) * | 2014-09-01 | 2016-08-24 | 中科合成油工程股份有限公司 | Fine coal pressurized delivered is to the method for pressurized-gasification furnace |
| CN107099338B (en) * | 2017-05-09 | 2020-10-20 | 新奥科技发展有限公司 | Pulverized coal conveying device, pulverized coal gasification system and pulverized coal conveying method |
| CN117685505A (en) * | 2023-12-13 | 2024-03-12 | 华能（天津）煤气化发电有限公司 | A device for heating the COS hydrolyzer before the overall start-up of IGCC and its working method |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1832219A (en) * | 1928-07-05 | 1931-11-17 | Lewis C Karrick | Process and apparatus for superheating steam |
| DE2434526C2 (en) * | 1974-07-18 | 1983-01-13 | Shell Internationale Research Maatschappij B.V., 2501 's-Gravenhage | Method and device for introducing finely divided solid fuel into a gasification chamber under increased pressure |
| US3976442A (en) * | 1974-12-18 | 1976-08-24 | Texaco Inc. | Synthesis gas from gaseous CO2 -solid carbonaceous fuel feeds |
| US4040976A (en) * | 1976-07-06 | 1977-08-09 | Cities Service Company | Process of treating carbonaceous material with carbon dioxide |
| US4377356A (en) * | 1980-11-21 | 1983-03-22 | Arthur D. Little, Inc. | Method and apparatus for moving coal including one or more intermediate periods of storage |
| CA1208258A (en) * | 1982-06-23 | 1986-07-22 | Bernardus H. Mink | Process for conveying a particulate solid fuel |
| DE3809851A1 (en) * | 1988-03-24 | 1989-10-05 | Krupp Koppers Gmbh | METHOD FOR CONVEYING A FINE-GRAINED TO DUST-SHAPED FUEL IN A GASIFICATION REACTOR UNDER INCREASED PRESSURE |
| DE3810404A1 (en) * | 1988-03-26 | 1989-10-12 | Krupp Koppers Gmbh | METHOD AND DEVICE FOR PNEUMATICALLY CONVEYING A FINE-GRAINED TO DUST-SHAPED FUEL IN A GASIFICATION REACTOR UNDER INCREASED PRESSURE |
| US5685138A (en) * | 1995-02-09 | 1997-11-11 | Fluor Corporation | Integrated drying of feedstock feed to IGCC plant |
| DE19742610A1 (en) * | 1997-09-26 | 1999-04-01 | Karl Prof Dr Ing Straus | Fuel and air handling process for fossil fuel combustion plant, e.g. brown coal power plant |
| WO2005049170A1 (en) * | 2003-11-19 | 2005-06-02 | Scf Technologies A/S | A method and process for controlling the temperature, pressure-and density profiles in dense fluid processes |
| DE202005021666U1 (en) * | 2005-08-24 | 2009-05-20 | Siemens Aktiengesellschaft | Device for generating synthesis gases by partial oxidation of ash-containing fuels under elevated pressure and quench cooling of the raw gas |
| DE102005047583C5 (en) * | 2005-10-04 | 2016-07-07 | Siemens Aktiengesellschaft | Method and device for the controlled supply of fuel dust into an entrained flow gasifier |
| DE102005048488C5 (en) * | 2005-10-07 | 2020-07-02 | Siemens Aktiengesellschaft | Method and device for high power entrained flow gasifiers |
| US8888875B2 (en) * | 2006-12-28 | 2014-11-18 | Kellogg Brown & Root Llc | Methods for feedstock pretreatment and transport to gasification |
| DE102008060893A1 (en) * | 2008-12-09 | 2010-06-17 | Uhde Gmbh | Method and device for supplying a reactor for the production of raw synthesis gas |
-
2007
- 2007-04-30 DE DE102007020333A patent/DE102007020333A1/en not_active Withdrawn
-
2008
- 2008-04-18 US US12/598,069 patent/US20100147413A1/en not_active Abandoned
- 2008-04-18 WO PCT/EP2008/054706 patent/WO2008132069A2/en not_active Ceased
- 2008-04-18 DE DE112008000642T patent/DE112008000642A5/en not_active Withdrawn
- 2008-04-18 CN CN200880014340A patent/CN101679887A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110233471A1 (en) * | 2008-12-09 | 2011-09-29 | Uhde Gmbh | Method and system for supplying a reactor for generating crude synthesis gas |
| CN102549116A (en) * | 2009-08-12 | 2012-07-04 | 蒂森克虏伯伍德有限公司 | Method for supplying an entrained flow gasification reactor with carbon-containing fuels |
| CN102549116B (en) * | 2009-08-12 | 2014-06-25 | 蒂森克虏伯伍德有限公司 | Method for supplying an entrained flow gasification reactor with carbon-containing fuels |
| CN102154029A (en) * | 2009-12-21 | 2011-08-17 | 南方服务有限公司 | A high pressure feeder and method of operation to feed granular or fine materials |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007020333A1 (en) | 2008-11-06 |
| WO2008132069A3 (en) | 2008-12-31 |
| US20100147413A1 (en) | 2010-06-17 |
| DE112008000642A5 (en) | 2010-03-18 |
| CN101679887A (en) | 2010-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2008132069A2 (en) | Use of pure carbon dioxide as an inerting and flow medium in powder injection systems for use in pulverized coal gasification under pressure | |
| EP2142621A2 (en) | Use of a mixture of carbon dioxide and nitrogen as an inerting and flow medium in powder injection systems for use in pulverized coal gasification under pressure | |
| DE102005047583C5 (en) | Method and device for the controlled supply of fuel dust into an entrained flow gasifier | |
| WO2009109297A2 (en) | Re-delievery system in a coal gasification reactor | |
| EP2391696A2 (en) | Method for supplying an entrained-flow gasification reactor with fuel from a reservoir tank | |
| DE102008052673A1 (en) | Device for supplying e.g. petroleum coke, into coal gasification reactor, has lock container connected with receiver tank using connection devices, and receiver tank connected with vitrification reactor by fuel lines | |
| WO2008132072A2 (en) | Combined use of carbon dioxide and nitrogen in a component of a powder injection system for use in pulverized coal gasification under pressure | |
| DE102012217890B4 (en) | Combination of pressure charging and metering for continuous delivery of fuel dust into an entrainment gasification reactor over long distances | |
| WO2009095290A2 (en) | System for dust metering | |
| DE102008060893A1 (en) | Method and device for supplying a reactor for the production of raw synthesis gas | |
| DE102014202236A1 (en) | Auxiliary gas element for conveying dust streams | |
| WO2012175464A1 (en) | Homogenized feeding of dusts by means of a fixed throttle point in the dust conveying line | |
| DE102010026792B4 (en) | Method of operating an oxyfuel power plant | |
| DE102009032438A1 (en) | Recirculation of delivery gases from compressed gas operated dust extraction systems | |
| DE102012104866B4 (en) | Method for operating a bulk material lock device | |
| DE102010037657A1 (en) | Process and plant for steam generation | |
| DE102011083850A1 (en) | Pneumatic fuel supply from a metering vessel to a high differential pressure gasification reactor | |
| DE102011077911A1 (en) | Consistent feed of dusts with controllable restriction in the dust delivery line | |
| DE102013203739A1 (en) | Combination of pressure charging and metering for continuous delivery of fuel dust into an entrainment gasification reactor over long distances | |
| KR20170002585A (en) | System and process for handling heavy oil residue | |
| WO2011012392A2 (en) | Integration of coal grinding-drying, coal supplying, and coal gasification for entrained-flow gasification plants | |
| DE102008035294B4 (en) | Multi-stage dust dosing system for high pressures by means of locks | |
| DE102011083210B4 (en) | Apparatus and method for pneumatically conveying dusts with a reduced amount of fluidizing gas | |
| DE102015218875A1 (en) | Gas supply element for conveying dust streams | |
| DE102013107592B4 (en) | Process for the gasification of solids containing carbon with gaseous, oxygen-containing gasification agents in a fluidized bed gas process in a high-temperature Winkler gasifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 200880014340.2 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08736356 Country of ref document: EP Kind code of ref document: A2 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1120080006423 Country of ref document: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 12598069 Country of ref document: US |
|
| REF | Corresponds to |
Ref document number: 112008000642 Country of ref document: DE Date of ref document: 20100318 Kind code of ref document: P |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 08736356 Country of ref document: EP Kind code of ref document: A2 |