CN100490931C - Composite filler tower for extracting oil-water system - Google Patents
Composite filler tower for extracting oil-water system Download PDFInfo
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- CN100490931C CN100490931C CNB2007100571169A CN200710057116A CN100490931C CN 100490931 C CN100490931 C CN 100490931C CN B2007100571169 A CNB2007100571169 A CN B2007100571169A CN 200710057116 A CN200710057116 A CN 200710057116A CN 100490931 C CN100490931 C CN 100490931C
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Abstract
The invention is concerned with a kind of extractive complex filling tower to oil-water system as the equipment for liquid-liquid mass transfer during the chemical industry production. The tower relates to fine part, heavy phase filling part, filling part, light phase filling part and settlement part from up to down. The filling part has at least two group complex filling units and each group complex filling unit has A, B and C filling layers from up to down. The A, B and C filling layer are all wave filling made up of more than two wave plates. The filling part of the tower uses filling with different structure to carry crash-assemble-speedup-crash again of the dispersed phase and it will enhance the mass transfer efficiency of extraction course.
Description
Technical field
The present invention relates to a kind of extracting oil-water system composite filler tower that is used for, belong to the device that is used for liquid liquid mass transfer in the Chemical Manufacture.
Background technology
Be widely used in tower that liquid-liquid extraction separates and divide step by step two kinds of contacts (as sieve-plate tower) and differential contact (as packed tower).Wherein board-like extraction tower reassociates after relying on plate hole that decentralized photo is repeatedly disperseed, and makes liquid liquid Surface Renewal and carry out interphase mass transfer.But because decentralized photo only relies on plate hole to disperse, and easily forms the dispersed phase drop layer on the sieve plate surface, thereby make dispersed phase drop Surface Renewal frequency low, and the mass transfer flux is lower than packed extraction tower.The effect of packed tower mainly is by the filler of different structure that decentralized photo is discrete so that more interphase mass transfer area to be provided, because packed tower inner fluid flow resistance is less, and the therefore general more board-like tower height of flux.Extraction process is mainly random packing with filler at present, and as Raschig ring, Pall ring etc., and general structured packing is relatively poor to the fragmentation of drop, and mass-transfer efficiency is low, therefore industrial application less [1].To have enlarge-effect little but structured packing is used for mass-transfer progress, the advantage that mass-transfer efficiency is high.How to develop can forced fluid liquid extraction process the combined type regular packed tower be an important research direction with the mass-transfer efficiency that improves extraction process.
1. the Wang Shu principal columns of a hall. modern packed column technology guide. Beijing: Sinopec publishing house, 1998,4
Summary of the invention
The object of the invention just is to provide a kind of extracting oil-water system composite filler tower that is used for.This packed tower extraction efficiency height.
The present invention is realized by following technical proposals, a kind of oil-aqueous systems extraction composite filler tower that is used for, this extraction composite filler tower comprises settling section 1 from top to bottom successively, heavy phase feed zone 2, packing section 3, light phase feed zone 4 and settling section 5, wherein, light phase export 9 is set in the settling section 1, heavy phase distributor 8 is set in the heavy phase feed zone 2, in the light phase feed zone 4 light phase distributor 7 is set, heavy out 6 is set in the settling section 5, it is characterized in that, packing section 3 is provided with 2 groups of combined type filler units at least, and every group of combined type filler unit is followed successively by the A layer from the bottom to top, B layer and C layer structured filling material layer.A layer structured filling material layer, be two above expanded metals corrugated plate composing plate corrugated wire gauze packings, be 90 ° and superpose so that the wavy channel direction of adjacent two expanded metals corrugated plates is interlaced, and the wavy channel direction of corrugated sheet-net packing and the vertical structured filling material layer of extraction composite filler tower centerline direction; B layer structured filling material layer, be two above corrugated sheet-net packings, be 15 °～90 ° and superpose so that the wavy channel direction of adjacent two expanded metals corrugated plates is interlaced, and the wavy channel direction of corrugated sheet-net packing is 15 °～75 ° structured filling material layer with extraction composite filler tower centerline direction in vertical plane; C layer structured filling material layer is two and arranges with the upper sheet space ripple packing and to form, and between adjacent two plate corrugated plates expanded metals is set and separates, and the wavy channel direction of plate ripple packing is with to extract the composite filler tower centerline direction parallel.
Above-mentioned A layer, B layer and the every layer height of C layer structured filling material layer are 20mm～300mm.
Above-mentioned corrugated sheet-net packing expanded metals thickness is 0.2mm～1.5mm, and above-mentioned plate ripple packing sheet is 0.2mm～1.5mm.Wherein the expanded metals silk directly is 0.5～1.5mm, and the expanded metals mesh is shaped as rectangle or rhombus, expanded metals mesh area 4 * 4～20 * 20mm
2
The invention has the advantages that: the packing section of extraction composite filler tower adopts the filler of different structure, can constantly carry out the fragmentation-coalescence-acceleration-broken again process of drop to decentralized photo, thereby improves the mass-transfer efficiency of extraction process.A layer structured filling material layer wherein, the corner angle of its net sheet have the cutting and crushing effect to dispersed phase drop, and big drop will be broken through out-of-date.It is big drop that B layer structured filling material layer, its channel design help droplet deceleration coalescence, can control the size of drop behind the coalescence by the size of control inclination angle of wavy channel and mesh.The drop that C layer structured filling material layer, its channel design help behind the coalescence quickens to rise, for the fragmentation of drop next time provides enough kinetic energy.Thereby dispersed phase drop is realized liquid liquid efficient mass transfer through the shattering process of fragmentation-coalescence-acceleration repeatedly-again.
Description of drawings:
Fig. 1 is the structural representation of extraction composite filler tower of the present invention.
Wherein: 1 is that settling section, 2 is that heavy phase feed zone, 3 is that packing section, 4 is that light phase feed zone, 5 is that settling section, 6 is that heavy out, 7 is that light phase distributor, 8 is that heavy phase distributor, 9 is a light phase export.
Fig. 2 is A layer, B layer and the C layer structured filling material layer filling schematic diagram of every group of combined type filler unit of packing section 3 among Fig. 1.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is described in detail by embodiment: adopt the extraction composite filler tower of kerosene (containing 30% tributyl phosphate)-acetic acid-aqueous systems with acetic acid in the kerosene extraction water.The structural representation of this extraction composite filler tower is seen Fig. 1, this extraction composite filler tower height overall 3000mm; Settling section 1 high 600mm, internal diameter 110mm, in establish light phase export 9, the exit position is apart from cat head 150mm; Heavy phase feed zone 2 and the light all high 400mm of feed zone 4 mutually, and heavy phase distributor 8 and light distributor 7 mutually be set respectively in two feed zone centre positions, distributor all adopts spray hair style pressure-type, distributor spray head disk diameter 60mm, uniform 26 diameter 1.5mm apertures; Under the heavy phase feed zone 2 packing section 3, packing section height 1000mm, internal diameter 50mm; Settling section 5 high 600mm, internal diameter 50mm, and have heavy out pipeline 6 in the bottom centre of tower.All import and export the steel pipe that pipeline all adopts diameter 25mm.Light phase links to each other with the water storage tank with oil phase by magnetic force driven centrifugal pump respectively with the heavy phase inlet ductwork.
Be B layer structured filling material layer on the A layer structured filling material layer, B layer structured filling material layer also is corrugated sheet-net packing, and monolithic expanded metals corrugated plate adopts the stainless steel plate mesh of thick 0.6mm, mesh is a rhombus, hole major axis * minor axis=6mm * 12mm is pressed into ripple peak height 6.3mm, the expanded metals corrugated plate of peak width 16mm.Above-mentioned monolithic expanded metals corrugated plate is made high 48mm, wide is the rectangle filler of 48mm, and 3 expanded metals corrugated plates are 90 ° and superpose so that the wavy channel direction of adjacent two expanded metals corrugated plates is interlaced, and the wavy channel direction of corrugated sheet-net packing is 45 ° with extraction composite filler tower centerline direction in vertical plane.
Be C layer structured filling material layer on the B layer structured filling material layer, C layer structured filling material layer adopts the plate ripple packing, and monolithic plate corrugated plate adopts the stainless sheet steel of thick 0.6mm, is pressed into ripple peak height 16mm, the plate corrugated plate of peak width 16mm.Above-mentioned monolithic corrugated plate is made high 48mm, the rectangle filler of wide 36mm, and 3 plate corrugated plates are arranged form, between adjacent two plate corrugated plates expanded metals is set and separates, and the wavy channel direction of plate ripple packing is with to extract the composite filler tower centerline direction parallel.
Put in order by above-mentioned A layer-B layer-C layer structured filling material layer, load 6 groups of combined type filler units altogether, height overall 864mm.
Utilize above-mentioned extraction composite filler tower, adopt the acetic acid in kerosene (the containing 30% tributyl phosphate) extraction water, process is as follows: with centrifugal pump water (0.2mol/L acetum) is squeezed in the tower through the water distributor earlier at normal temperatures, and make the water liquid level a little less than light phase export, then oil phase is squeezed in the tower at the bottom of extraction composite filler tower tower, oil phase is from bottom to top by packing layer, and water is squeezed in the tower from extraction composite filler tower cat head, and water passes through packing layer from top to bottom.Wherein oil phase is a decentralized photo, and the profit two-phase is through structured filling material layer generation mass transfer.Wherein at A layer structured filling material layer, the big drop of oil phase is broken through out-of-date; When the droplet after the fragmentation was flowed through B layer structured filling material layer, the droplet rate of climb was slowed down and coalescence is big drop; Big drop is again through C layer structured filling material layer, and the drop rate of climb strengthens, and the drop after the acceleration is broken once more through A layer structured filling material layer, and so dispersed phase drop has been realized liquid liquid efficient mass transfer through the shattering process of fragmentation-coalescence-acceleration repeatedly-again.
For verifying validity of the present invention, at identical flow, temperature, pressure, operating time, under the conditions such as profit two-phase import acetate concentration and packed height, in this extraction composite filler tower, will extract the Pall ring filler that the combined type filler is changed to Φ 10, carried out mass transfer experiment, the mass transfer effect that extracts the Pall ring filler of combined type filler and Φ 10 compared as table 1:
Table 1 mass transfer effect contrast table
| Water-oily flow (L/h) | Composite filler tower height of transfer unit of the present invention (m) H1 | The heap Pall ring packed tower height of transfer unit (m) of loosing H2 | (H2-H1)/H2 (mass-transfer efficiency raising percentage) |
| 20-20 | 0.72 | 0.91 | 21％ |
| 20-30 | 0.53 | 0.69 | 23％ |
| 20-40 | 0.39 | 0.54 | 27％ |
| 20-50 | 0.33 | 0.46 | 28％ |
Improve more than 20% from table 1 correction data extraction composite filler tower of the present invention as can be seen mass-transfer efficiency than the Pall ring packed tower.The present invention also can be used for the extraction of DMAC process and the extraction of Aniline Production process etc.
Claims (3)
1. one kind is used for oil-aqueous systems extraction composite filler tower, this extraction composite filler tower comprises settling section (1) from top to bottom successively, heavy phase feed zone (2), packing section (3), light phase feed zone (4) and settling section (5), wherein, light phase export (9) is set in the settling section (1), heavy phase distributor (8) is set in the heavy phase feed zone (2), in the light phase feed zone (4) light phase distributor (7) is set, heavy out (6) is set in the settling section (5), it is characterized in that, packing section (3) is provided with 2 groups of combined type filler units at least, every group of combined type filler unit is followed successively by the A layer from the bottom to top, B layer and C layer structured filling material layer, A layer structured filling material layer: by two above expanded metals corrugated plate composing plate corrugated wire gauze packings, the wavy channel direction of adjacent two expanded metals corrugated plates is 90 ° and superposes with interlaced, and the wavy channel direction of corrugated sheet-net packing is vertical with extraction composite filler tower centerline direction; B layer structured filling material layer: by two above expanded metals corrugated plate composing plate corrugated wire gauze packings, the wavy channel direction of adjacent two expanded metals corrugated plates is 15 °～90 ° and superposes with interlaced, and the wavy channel direction of corrugated sheet-net packing is 15 °～75 ° with extraction composite filler tower centerline direction in vertical plane; C layer structured filling material layer is two and arranges with the upper sheet space ripple packing and to form, and between adjacent two plate corrugated plates expanded metals is set and separates, and the wavy channel direction of plate ripple packing is with to extract the composite filler tower centerline direction parallel.
2. by the described oil-aqueous systems extraction composite filler tower that is used for of claim 1, it is characterized in that A layer, B layer and the every layer height of C layer structured filling material layer are 20mm～300mm.
3. by the described oil-aqueous systems extraction composite filler tower that is used for of claim 1, it is characterized in that, corrugated sheet-net packing expanded metals thickness is 0.2mm～1.5mm, above-mentioned plate ripple packing sheet is 0.2mm～1.5mm, wherein the expanded metals silk directly is 0.5～1.5mm, the expanded metals mesh is shaped as rectangle or rhombus, expanded metals mesh area 4 * 4～20 * 20mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100571169A CN100490931C (en) | 2007-04-10 | 2007-04-10 | Composite filler tower for extracting oil-water system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100571169A CN100490931C (en) | 2007-04-10 | 2007-04-10 | Composite filler tower for extracting oil-water system |
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| CN100490931C true CN100490931C (en) | 2009-05-27 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862961A (en) * | 2011-07-05 | 2013-01-09 | 上海睿思化工科技有限公司 | Novel extraction technology in process of preparing hydrogen peroxide by anthraquinone process |
| CN103949086B (en) * | 2011-08-03 | 2016-06-29 | 江苏宇通干燥工程有限公司 | Extract and extract the method for work of dual-purpose integrated machine |
| CN103949085B (en) * | 2011-08-03 | 2016-08-17 | 陆文光 | A kind of method of work extracted and extract dual-purpose integrated machine |
| CN103949084B (en) * | 2011-08-03 | 2016-08-17 | 陆文光 | Extraction that work efficiency is high and the method for work of extraction dual-purpose integrated machine |
| CN102583257B (en) * | 2012-01-12 | 2014-02-12 | 天津大学 | Extraction equipment and method for preparing oxyful via anthraquinone process |
| CN103041609A (en) * | 2012-12-26 | 2013-04-17 | 淮安万邦香料工业有限公司 | Special device for of oil-water two-phase intermittent extraction and extraction method thereof |
| CN108440294A (en) * | 2018-03-08 | 2018-08-24 | 厦门大学 | The impurity removal of hydrolysis process of methyl acetate and its methyl acetate recovery method in p-phthalic acid's production |
| CN110384948A (en) * | 2018-04-20 | 2019-10-29 | 威海韩孚生化药业有限公司 | A kind of continuous extraction apparatus |
| CN111686477B (en) * | 2020-06-30 | 2022-07-29 | 聊城鲁西聚酰胺新材料科技有限公司 | Caprolactam extraction liquid washing tower, system and process |
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