CH438217A - Mass transfer column - Google Patents
Mass transfer columnInfo
- Publication number
- CH438217A CH438217A CH788565A CH788565A CH438217A CH 438217 A CH438217 A CH 438217A CH 788565 A CH788565 A CH 788565A CH 788565 A CH788565 A CH 788565A CH 438217 A CH438217 A CH 438217A
- Authority
- CH
- Switzerland
- Prior art keywords
- column
- lamellae
- built
- section
- cross
- Prior art date
Links
- 241000446313 Lamella Species 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 5
- 241000270295 Serpentes Species 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 claims 2
- 241000530268 Lycaena heteronea Species 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000007792 gaseous phase Substances 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000006679 Mentha X verticillata Nutrition 0.000 description 1
- 235000002899 Mentha suaveolens Nutrition 0.000 description 1
- 235000001636 Mentha x rotundifolia Nutrition 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D59/00—Separation of different isotopes of the same chemical element
- B01D59/02—Separation by phase transition
- B01D59/04—Separation by phase transition by distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D59/00—Separation of different isotopes of the same chemical element
- B01D59/28—Separation by chemical exchange
- B01D59/32—Separation by chemical exchange by exchange between fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32206—Flat sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/3221—Corrugated sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32213—Plurality of essentially parallel sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32213—Plurality of essentially parallel sheets
- B01J2219/3222—Plurality of essentially parallel sheets with sheets having corrugations which intersect at an angle different from 90 degrees
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32224—Sheets characterised by the orientation of the sheet
- B01J2219/32227—Vertical orientation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32237—Sheets comprising apertures or perforations
- B01J2219/32244—Essentially circular apertures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32255—Other details of the sheets
- B01J2219/32258—Details relating to the extremities of the sheets, such as a change in corrugation geometry or sawtooth edges
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
Stoffaustauschkolonne
Das Hauptpatent bezieht sich auf eine Stoffaustauschkolonne mit Einbauelementen, welche aus parallel zur Kolonnenachse angeordneten Lamellen bestehen.
Die Merkmale des Hauptpatentes bestehen darin, dass jedes Einbauelement aus einander berührenden Lamellen besteht, wobei mindestens eine von zwei sich berührenden Lamellen geriffelt ist, und dass die Riffelungen von aufeinanderfolgenden geriffelten Lamellen verschiedene Richtungen haben und minze stens die Riffelung einer von zwei aufeinanderfolgenden geriffelten Lamellen im Winkel zur Kolonnenachse liegt, und dass weiterhin der Stoffaustauschteil der Kolonne mit mindestens zwei übereinander angeordneten Einbauelementen aufgefüllt ist, wobei die senkrechten Stellungen der Lamellen übereinander angeordneter Elemente gegeneinander um einen Winkel um die Kolonnenachse verschwenkt sind.
Durch eine solche Ausbildungsweise des Stoffaustauschteiles einer Kolonne wird gegenüber den bisher gebräuchlichen Ausführungsformen eine wesentlich bessere Verteilwirkung der in Kontakt miteinander zu bringenden Phasen über den ganzen Kolonnenquerschnitt bewirkt, wodurch die Bodenzahl erhöht wird und somit die Kolonnenhöhe reduziert werden kann.
Ausserdem zeichnen sich die Einbauelemente selbst durch eine einfache Herstellungsweise aus.
Der vorliegenden Erfindung liegt eine vorteilhafte Weiterbildung derartiger Einbauelemente zugrunde.
Während bei den im Hauptpatent vorgeschlagenen Einbauelementen zwar eine gleichmässige Flüssigkeitsverteilung über den grössten Teil des gesamten Querschnittes in der angestrebten Weise verwirklicht wird, können an den Enden der Lamellen in der Randzone Ungleichmässigkeiten in der Flüssigkeitsverteilung auftreten. Innerhalb der Elemente läuft die Flüssigkeit schräg in Richtung der gegen die Kolonnen achse geneigten Rillen nach unten, und da die Riffelungen benachbarter Lamellen einen entgegengesetzten Neigungswinkel besitzen, heben sich die schräggerichteten Vektoren der Strömungsgeschwindigkeiten jeweils auf, und die Flüssigkeit durchströmt im ganzen gesehen über einen grösseren Querschnitt in gleichmässiger Verteilung senkrecht von oben nach unten die Einbauelemente.
An den Enden der Lamellen Ikann jedoch die seitliche Komponente der Strömung nicht mehr weiter; damit bildet sich eine Stauung der Flüssigkeitstieilströme, welche den abwärts geneigten Rillen entlangströmen, in diesem Bereich aus, und diese Teilströme haben daher die Tendenz, mindestens zum grössten Teil senkrecht an der Kolonnenwand nach unten zu fliessen und nicht in die einwärtsgerichteten Rillen der benachbarten Lamelle überzutreten.
An den beiden gegenüberliegenden Enden jeder Lamelle eines Einbauelementes tritt daher der umgekehrte Effekt auf, d. h. an der Seite der Randzone, wo die Riffelung abwärts geneigt ist, tritt eine gewisse Flüssigkeitsmenge aus dem Element aus und strömt der Kolonnenwand entlang nach unten, während auf der gegenüberliegenden Seite der Randzone in die dort einwärts geneigte Riffelung der Lamelle eine zu kleine Flüssigkeitsmenge von der benachbarten Lamelle eintritt.
Bei Stoffaustauschverfahren, die bei einer höheren Temperatur als Umgebungstemperatur ausgeführt werden, kommt als weiterer Nachteil hinzu, dass an der Kolonnenwand die Rücklaufdichte durch Wärmeabfuhr durch die Wandisolation ohnehin am grössten ist.
Die Erfindung besteht in der Auffindung einer solchen Ausführungsform der dem Hauptpatent zugrunde liegenden Einbauelemente, bei der diese Nachteile vermieden, d. h. eine gleichmässige Flüssigkeitsverteilung über den gesamten Querschnitt der Elemente auch in den Randzonen erreicht wird.
Die erfindungsgemässe Stoffaustauschkolonne ist dadurch gekennzeichnet, dass die Lamellen zu zweien in der Randzone der Kolonne bogenförmig miteinander verbunden sind, wobei im Scheitel der bogenförmigen Verbindung bezüglich der Kolonnenachse eine Umkehrung das Richtungssinnes der Riffelung der einen La melle zu dem Richtungssinn der Riffelung der anderen mit dieser Lamelle verbundenen Lamelle entsteht.
Hierdurch wird erreicht, dass nunmehr die Flüssigkeitsteilströme, die längs der Rillen einer Lamelle der Randzone zuströmen dort umgelenkt und direkt in die gegen die Kolonnenachse geneigten Rillen der anderen mit der vorerwähnten Lamelle verbundenen Lamelle fliessen.
Vorteilhaft werden die Lamellen jedes Einbauelementes als eine Anzahl von endlosen Bändern ausge führt. Diese Ausführungsform zeichnet sich insbesondere dann durch leichte Herstellbarkeit aus, wenn die Lamellen aus einem starren Material bestehen. Gegebenenfalls kann es auch zweckmässig sein, wenn beispielsweise die Lamellen aus einem relativ elastischen Material bestehen, die Gesamtheit der Lamellen jedes Einbauelementes aus einem ähnlich einer Schlange gebogenen Band zu bilden.
Mass transfer column
The main patent relates to a mass transfer column with built-in elements, which consist of lamellae arranged parallel to the column axis.
The features of the main patent are that each built-in element consists of touching lamellae, at least one of two touching lamellae being corrugated, and that the corrugations of successive corrugated lamellae have different directions and at least the corrugation of one of two successive corrugated lamellae in the mint Angle to the column axis, and that furthermore the mass transfer part of the column is filled with at least two built-in elements arranged one above the other, the vertical positions of the lamellae of elements arranged one above the other being pivoted relative to one another by an angle about the column axis.
Such a design of the mass transfer part of a column results in a significantly better distribution effect of the phases to be brought into contact with one another over the entire column cross-section compared to the previously common embodiments, whereby the number of plates is increased and thus the column height can be reduced.
In addition, the built-in elements themselves are characterized by a simple manufacturing method.
The present invention is based on an advantageous further development of such built-in elements.
While the built-in elements proposed in the main patent achieve a uniform distribution of liquid over most of the entire cross-section in the desired manner, irregularities in the distribution of liquid can occur at the ends of the lamellas in the edge zone. Inside the elements, the liquid runs obliquely downwards in the direction of the grooves inclined against the column axis, and since the corrugations of adjacent lamellas have an opposite angle of inclination, the oblique vectors of the flow velocities cancel each other out, and the liquid flows through a larger one Cross-section evenly distributed vertically from top to bottom of the built-in elements.
At the ends of the lamellas, however, the lateral component of the flow can no longer continue; This creates a congestion of the partial liquid flows, which flow along the downwardly inclined grooves, in this area, and these partial flows therefore tend to flow at least for the most part vertically down the column wall and not overflow into the inward grooves of the adjacent lamella .
The opposite effect therefore occurs at the two opposite ends of each lamella of a built-in element; H. on the side of the edge zone where the corrugation is inclined downward, a certain amount of liquid escapes from the element and flows down the column wall, while on the opposite side of the edge zone into the inwardly inclined corrugation of the lamella, too small an amount of liquid from the adjacent slat occurs.
In the case of mass transfer processes that are carried out at a higher temperature than ambient temperature, there is a further disadvantage that the return flow density is greatest at the column wall anyway due to heat dissipation through the wall insulation.
The invention consists in finding such an embodiment of the installation elements on which the main patent is based, in which these disadvantages are avoided; H. an even distribution of liquid over the entire cross-section of the elements is achieved in the edge zones.
The mass transfer column according to the invention is characterized in that two of the lamellae are connected to one another in the form of an arc in the edge zone of the column, with a reversal of the direction of the corrugation of one lamella to the direction of the corrugation of the other with this at the apex of the arched connection with respect to the column axis Lamella connected lamella is created.
This ensures that the partial liquid flows that flow along the grooves of a lamella of the edge zone are now deflected there and flow directly into the grooves of the other lamella connected to the aforementioned lamella, which are inclined towards the column axis.
The slats of each built-in element are advantageously carried out as a number of endless belts. This embodiment is characterized in particular by ease of manufacture when the lamellae are made of a rigid material. If necessary, it can also be expedient, for example if the lamellae are made of a relatively elastic material, to form the entirety of the lamellae of each built-in element from a band bent like a snake.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH788565A CH438217A (en) | 1962-07-31 | 1965-06-04 | Mass transfer column |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH918862A CH398503A (en) | 1962-07-31 | 1962-07-31 | Mass transfer column |
| CH788565A CH438217A (en) | 1962-07-31 | 1965-06-04 | Mass transfer column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH438217A true CH438217A (en) | 1967-06-30 |
Family
ID=25702397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH788565A CH438217A (en) | 1962-07-31 | 1965-06-04 | Mass transfer column |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH438217A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989010527A1 (en) * | 1988-04-28 | 1989-11-02 | L'air Liquide, Societe Anonyme Pour L'etude Et L'e | Heat and material exchange device and manufacturing process |
| US5262095A (en) * | 1988-04-28 | 1993-11-16 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Heat and material exchanging device and method of manufacturing said device |
| EP1332794A3 (en) * | 2002-01-31 | 2004-03-17 | Johann Dr. Stichlmair | Packing elements for packed columns |
| CN109908757A (en) * | 2019-04-18 | 2019-06-21 | 国电环境保护研究院有限公司 | A kind of carbon base catalyst regenerating unit and regeneration method |
-
1965
- 1965-06-04 CH CH788565A patent/CH438217A/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989010527A1 (en) * | 1988-04-28 | 1989-11-02 | L'air Liquide, Societe Anonyme Pour L'etude Et L'e | Heat and material exchange device and manufacturing process |
| FR2630819A1 (en) * | 1988-04-28 | 1989-11-03 | Air Liquide | HEAT AND MATERIAL EXCHANGE DEVICE, METHOD FOR MANUFACTURING SAME, IMPLEMENTATION SHEAR |
| US5154859A (en) * | 1988-04-28 | 1992-10-13 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Heat and material exchanging device and method of manufacturing said device |
| US5262095A (en) * | 1988-04-28 | 1993-11-16 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Heat and material exchanging device and method of manufacturing said device |
| EP1332794A3 (en) * | 2002-01-31 | 2004-03-17 | Johann Dr. Stichlmair | Packing elements for packed columns |
| CN109908757A (en) * | 2019-04-18 | 2019-06-21 | 国电环境保护研究院有限公司 | A kind of carbon base catalyst regenerating unit and regeneration method |
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