CN1089365C - Process for treating residual PTA dregs - Google Patents
Process for treating residual PTA dregs Download PDFInfo
- Publication number
- CN1089365C CN1089365C CN99114298A CN99114298A CN1089365C CN 1089365 C CN1089365 C CN 1089365C CN 99114298 A CN99114298 A CN 99114298A CN 99114298 A CN99114298 A CN 99114298A CN 1089365 C CN1089365 C CN 1089365C
- Authority
- CN
- China
- Prior art keywords
- residue
- burner hearth
- flue
- tail gas
- fine
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 238000003672 processing method Methods 0.000 claims abstract description 12
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical group OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 31
- 239000000843 powder Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000005422 blasting Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 241000628997 Flos Species 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 6
- 239000003245 coal Substances 0.000 abstract description 3
- 238000007873 sieving Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 17
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
Images
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a PTA residue processing method which comprises drying, caking crushing, sieving, blowing, spraying, combustion and tail gas treatment. The method has the advantages that the method effectively solves the PTA residue processing problems, simultaneously PTA residues are effectively used as fuels of an industrial boiler, and the method makes the PTA residues valuable. By calculation, a ton of PTA residues is equivalent to 1.3 to 1.5 tons of coal. The method has the advantages of simplicity, economy, practicality and no pollution problem during combustion, and completely meets environmental protection requirements.
Description
The present invention relates to the Chemicals draff processing method, particularly a kind of fine P-phthalic acid residue processing method.
The pure terephthalic acid is a kind of important chemical material, but can produce a large amount of pure terephthalic acid's residues in process of production, and this residue mainly comprises residual pure terephthalic acid, phenylformic acid, tolyl acid, cobalt element etc.A large amount of residues had both needed the place of piling up, and environmental pollution constitutes greatly and threatens again.At present, it was not only immature, but also uneconomical to handle the technology of pure terephthalic acid's residue with isolating method, and needed a large amount of petroleum naphtha or coal combustion-supporting when handling with the method for burning, and the waste gas of burning generation and dust enter in the atmosphere contaminate environment again.
The purpose of this invention is to provide a kind of simple, economic, practical fine P-phthalic acid residue processing method, this method can make pure terephthalic acid's residue turn waste into wealth, and makes it to become the fuel of all types of industries boiler.
The object of the present invention is achieved like this: a kind of fine P-phthalic acid residue processing method is characterized in that this method is: with pure terephthalic acid's residue drying, make its water content be lower than 15%; With dried residue cake broke, sieve; The residue powder is ejected into equably the burner hearth internal combustion of boiler by the blasting jet machine; Tail gas after the residue burning is entered purifying processing device through flue, to remove objectionable impurities, dust and the cobalt element in the tail gas.
The burning of pure terephthalic acid's residue needs to solve residue drying, the preceding bonding of burning, all even vent gas treatment problem of burning.The pure terephthalic acid's residue water content that produces from produce can not directly be burnt about 50%, at first needs drying, makes its water content be lower than 15%; Drying can adopt the simplest Exposure to Sunlight method, but this method needs the Exposure to Sunlight place, simultaneously, just can not carry out when running into rainy weather, influences burning disposal.The present invention adopts the combustion tail gas desiccating method, promptly in the flue of boiler, be provided with the ring-type transport tape, end flue place at transport tape is provided with residue entrance, be provided with the residue outlet at the flue place of the other end, pure terephthalic acid's residue of humidity is imported continuously from the ingress, residue is assisted be spread out on the transport tape, and in the drying of in flue, accepting using waste heat from tail gas under the phoresying of transport tape, and its water content of residue of exporting continuously from the exit is lower than 15%.The advantage of this drying means is the waste heat that can make full use of combustion tail gas, does not need bigger place, and is irrelevant with weather.The present invention is with the fuel of pure terephthalic acid's residue as Industrial Boiler, as heat conducting oil boiler, steam boiler or drinking water boiler etc.Advance to prevent before burner hearth fully burns residue bonding at residue, promptly prevent residue self caking and can not burn thoroughly and residue overheating powder and be bonded in inboard wall of burner hearth and influence boiler and normally move.For this reason, the present invention earlier carries out fragmentation to the residue of caking before residue advances burner hearth, and removes in the residue other impurity such as stone, sieves then, guarantees that the residue that enters in the burner hearth is powder, and the residue powder sprays in the burner hearth by gas blower or other device again.Broken, sieve and spray and should carry out at normal temperatures to prevent the residue powder bonded.Pure terephthalic acid's residue can only be thrown homogeneous combustion aloft, can not pile up burning, therefore will the residue powder be sprayed in the burner hearth equably with jet apparatus, and make it falling preceding all burnt.In order to maximally utilise combustion energy, different jet orifices should be set according to the difference of boiler furnace shape and structure, when burner hearth is rectangular parallelepiped, the entrance port of residue powder should be located at the floss hole place of burner hearth, make the residue powder in whole furnace cavity, be the burning of eddy current shape ground, otherwise, if the entrance port is located at the opposite of burner hearth flue, then residue dust-firing air-flow enters in the flue very soon, can not utilize combustion energy fully.When burner hearth when being cylindric, then a gas channel should be set between burner hearth and entrance port, make the residue powder in burner hearth and the burning of gas channel confluce, otherwise the high-temp combustion air-flow enter flue very soon and waste energy.Tail gas after the residue burning can not directly be drained in the atmosphere because of containing waste gas and dust, should establish purifying processing device at the flue outlet place, makes tail gas meet the discharge-ring guaranteed request.The present invention adopts the labyrinth type purification water pool, by this pond tail gas is purified.
The present invention compared with prior art, its remarkable advantage is: 1, solved pure terephthalic acid's residue treatment problem effectively; 2, pure terephthalic acid's residue can be effective as the fuel of Industrial Boiler, turn waste into wealth, both solve the residue treatment problem, make it to become fuel efficiently again.It is calculated that one ton of exsiccant pure terephthalic acid residue is equivalent to 1.3～1.5 tons coal; 3, treatment process is simple, economic, practical; 4, the pollution-free problem of burn processing, compliance with environmental protection requirements fully.
The invention will be further described below in conjunction with drawings and Examples:
Accompanying drawing is a process frame chart of the present invention.
Embodiment: with the fuel of pure terephthalic acid's residue as the heat conducting oil boiler of producing acetic acid, its pure terephthalic acid's residue burn processing method is: according to dry, fragmentation is sieved, spray, the technical process fabrication and installation corresponding apparatus of burning and vent gas treatment.The boiler of thermal oil is the same with boiler with existing acetic acid production with burner hearth, but is provided with tubaeform pure terephthalic acid's residue entrance port at its floss hole one end.Be integrated by the residue agglomerate-breaking device of driven by motor and sieving machine and blasting jet machine three, the top cylinder shape is a crushing mechanism, and the lower taper funnel-form is the mechanism of sieving, and the bottom is a blasting jet mechanism, be provided with transport sector in flue, its transport tape is as the auxilliary bed of residue exsiccant.Outlet at flue is provided with labyrinth type purifying treatment pond.Its concrete procedure is: moist pure terephthalic acid's residue that water content is high is input to continuously on the transport tape by the inlet of flue drying installation and carries out drying by the using waste heat from tail gas in the flue and make it water content and be lower than 15%, then from outlet output.With dried residue deliver to fragmentation, sieve, in the blasting jet machine, make it cake broke, sieve then, again with the burner hearth internal combustion of residue powderject to boiler, because of burner hearth residue entrance port is located at burner hearth floss hole one end, therefore, the residue powder burns in whole furnace cavity with the eddy current air-flow in burner hearth, not only fully but also unlikely high temperature gas flow enter flue rapidly and waste energy.The flue gas that burning produces enters flue, its waste heat carries out drying to the pure terephthalic acid's residue on the transport tape in flue, tail gas discharged enters the labyrinth type purification water pool and carries out purifying treatment from flue, removes objectionable impurities and dust in the tail gas, is drained into aerial then.
Claims (5)
1, a kind of fine P-phthalic acid residue processing method is characterized in that this method is:
1.1, make its water content be lower than 15% with pure terephthalic acid's residue drying;
1.2 with dried residue cake broke, sieve;
1.3 the residue powder is ejected into equably the burner hearth internal combustion of boiler by the blasting jet machine;
1.4 the tail gas after the residue burning is entered purifying processing device through flue, to remove objectionable impurities, dust and the cobalt element in the tail gas.
2, fine P-phthalic acid residue processing method according to claim 1 is characterized in that residue can adopt the sun drying method, also can adopt flue internally heated tail gas to carry out drying.
3, fine P-phthalic acid residue processing method according to claim 1 and 2 is characterized in that then the entrance port of residue powder being located at floss hole one end of burner hearth if burner hearth is rectangular parallelepiped, makes the residue powder be the eddy current shape at burner hearth internal combustion air-flow; If burner hearth is cylindric, then between burner hearth and entrance port, be provided with a gas channel, make the residue powder in burner hearth and the burning of gas channel confluce.
4, fine P-phthalic acid residue processing method according to claim 1 and 2 is characterized in that device for purifying and treating tail gas is a labyrinth type pond purifying processing device.
5, fine P-phthalic acid residue processing method according to claim 2, it is characterized in that described employing flue internally heated tail gas carries out the exsiccant method and is: in flue, be provided with the ring-type transport tape, end flue place at transport tape is provided with residue entrance, is provided with the residue outlet at the flue place of the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99114298A CN1089365C (en) | 1999-07-05 | 1999-07-05 | Process for treating residual PTA dregs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99114298A CN1089365C (en) | 1999-07-05 | 1999-07-05 | Process for treating residual PTA dregs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1279272A CN1279272A (en) | 2001-01-10 |
| CN1089365C true CN1089365C (en) | 2002-08-21 |
Family
ID=5277399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99114298A Expired - Lifetime CN1089365C (en) | 1999-07-05 | 1999-07-05 | Process for treating residual PTA dregs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1089365C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255107A (en) * | 2008-04-03 | 2008-09-03 | 沈福昌 | Resourceful treatment method of purified terephthalic acid waste residue |
| CN102798679B (en) * | 2012-09-03 | 2014-01-15 | 绍兴汉青环保科技有限公司 | Gas chromatography analysis method for organic matters in gas of PTA (Pure Terephthalic Acid) production device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149574A (en) * | 1995-09-22 | 1997-05-14 | 三菱瓦斯化学株式会社 | Method for producing high pureness terephthalic acid |
-
1999
- 1999-07-05 CN CN99114298A patent/CN1089365C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149574A (en) * | 1995-09-22 | 1997-05-14 | 三菱瓦斯化学株式会社 | Method for producing high pureness terephthalic acid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1279272A (en) | 2001-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Fuchang Environment Protection Technology Group Co., Ltd. Assignor: Shen Fuchang Contract fulfillment period: 2002.8.22 to 2012.8.21 Contract record no.: 2008320000474 Denomination of invention: Process for treating residual PTA dregs Granted publication date: 20020821 License type: Exclusive license Record date: 2008.9.27 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2002.8.22 TO 2012.8.21 Name of requester: CO.LTD.,JIANGSU FUCHANG ENVIRONMENTAL TECHNOLOGY Effective date: 20080927 |
|
| ASS | Succession or assignment of patent right |
Owner name: CO.LTD.,JIANGSU FUCHANG ENVIRONMENTAL TECHNOLOGY G Free format text: FORMER OWNER: SHEN FUCHANG Effective date: 20091002 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091002 Address after: East Lake Road North Village Henglin town Wujin city Jiangsu No. 50 Patentee after: Jiangsu Fuchang Environment Protection Technology Group Co., Ltd. Address before: East Lake Road North Village Henglin town Wujin city Jiangsu No. 50 Patentee before: Shen Fuchang |
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| CX01 | Expiry of patent term |
Granted publication date: 20020821 |
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| CX01 | Expiry of patent term |