CN101254353A - Catalyze rectification packing tower - Google Patents
Catalyze rectification packing tower Download PDFInfo
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- CN101254353A CN101254353A CNA2007101509201A CN200710150920A CN101254353A CN 101254353 A CN101254353 A CN 101254353A CN A2007101509201 A CNA2007101509201 A CN A2007101509201A CN 200710150920 A CN200710150920 A CN 200710150920A CN 101254353 A CN101254353 A CN 101254353A
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Abstract
The invention discloses a catalytic distillation packing tower and belongs to the technology of a gas-liquid mass transfer tower. The tower includes a tower body, the interior of the tower body is sequentially provided with a liquid distributor, a conical flow guide device, a catalytic packing section and a gas distributor from top to bottom. The catalytic distillation packing tower is characterized in that the catalytic packing section is composed of a catalytic packing layer and a structured packing layer which are alternately arranged, a packing cup is composed of a loose-packed strong acid resin catalyst which is clamped between two plate nets and springs which are positioned at one sides of the two net slices and are evenly arranged along the widths of the plate nets, the length of the plate nets is equal to the length of the springs, and the springs are reeled into the spiral shape in the concentric circle mode. The catalytic distillation packing tower has the advantages that: the adopted strong acid resin catalyst is packaged between the two plate nets of the structured packing cup, the plate nets of the concentric circle have gaps of the springs, and the whole catalytic packing has enough flow channels, thus avoiding the dead zone of the liquid and the uneven flow. The liquid phase can be fully contacted with the catalyst, which is conducive to the prolonging of the service life of the catalyst. The adopted catalytic packing has simple production and convenient loading and unloading.
Description
Technical field
The present invention relates to catalytic distillation equipment, particularly relate to a kind of catalyze rectification packing tower.
Background technology
Catalytic distillation is a special dimension in the distillation technology, belongs to the category of reactive distillation.In Chemical Manufacture, will react and separate the imagination that is combined in a process, cause the generation of catalytic rectification process.Catalytic distillation is when carrying out catalytic reaction, uses the process of the method separated product of rectifying.Because advantage such as have that selectivity is good, yield is high, energy consumption is low and equipment investment is few and be subjected to extensive attention gradually.
Existing catalyze rectification packing tower comprises structured packing or the dumped packing in the tower, place the catalyst that is formed by the cloth bag packing between packing layer, the operating process of this catalytic filler tower is owing to the pressure drop height, and there is the dead band in liquid phase, the gas-liquid skewness, mass-transfer efficiency is low.Develop that a kind of to have a catalyze rectification packing tower that pressure drop is low, mass-transfer efficiency is high imperative.
Summary of the invention
The object of the present invention is to provide a kind of catalyze rectification packing tower, this catalyze rectification packing tower has that pressure drop is low, and treating capacity is big, the characteristics that separative efficiency is high.
The present invention is realized by following technical proposals:
Catalyze rectification packing tower of the present invention, tower comprise tower body 2, liquid distribution trough 1, catalytic distillation compounded mix 3, gripper shoe 4, gas distributor 5; Wherein the catalytic distillation compounded mix from top to bottom is arranged in order by taper baffle 6, catalytic filler layer 7 and structured filling material layer 8 and constitutes, and catalytic filler layer 7 is regular packing box.
Described packing box 7 is along the expanded metals width spring 10 to be set evenly by the side that the catalyst filling layer 9 that is provided with between two boards net and the two boards net reaches at two net sheets, the length of expanded metals and the equal in length of spring are through rolling into helical form in the concentric circles mode.The catalytic distillation compounded mix of installing on every layer of gripper shoe 3 is at least 3 dishes.
Described taper baffle 6 is divided into inside and outside two-layer, and skin is the bar valve structure, and outward-dipping 15 °-75 °; Internal layer is a square shaped teeth overflow structure, and taper baffle height is 10mm-40mm.
The structured packing dish height of described catalytic filler layer 7 is 400mm-500mm, and diameter is 100mm-400mm, and every layer of structured packing section highly is 150mm-250mm, diameter 100mm-400mm.
The mesh shape of the packing box expanded metals of described catalytic filler layer 7 is a parallelogram, and the grid area is 18mm
2-12800mm
2, the thickness that draws in the net is 0.2mm-5mm.
Described cone cap shape water conservancy diversion dress body, the helical cylindrical net catalytic distillation is regular to be filled out, and plate ripple arranged packing and spring bracing ring are material of the same race and make, a kind of for stainless steel, carbon steel, pottery or plastics.
The invention has the advantages that: the highly acidic resin catalyst of employing is divided between two expanded metals of structured packing dish, concentrically ringed in addition expanded metals is by gapping of spring, therefore whole catalytic filler has abundant circulation passage, avoids the dead band and inhomogeneous the flowing of liquid.The catalytic filler voidage is big, and pressure drop is low, and treating capacity is big.Liquid phase can fully contact with catalyst, helps prolonging life of catalyst.The catalytic filler that is adopted is made simple, and is easy to loading and unloading.
Description of drawings
Fig. 1 is the structural representation of catalytic rectifying tower of the present invention;
Fig. 2 is the structural representation of the catalytic distillation compounded mix monomer among Fig. 1;
Fig. 3 is the structural representation of the taper guiding device among Fig. 2;
Fig. 4 is the vertical view of the catalytic filler layer of packing section;
Fig. 5 is the present invention and the comparison that pressure drop is loaded with gas phase under different sprinkle densities of existing packed tower;
Fig. 6 is the present invention and the comparison that liquid holdup is loaded with gas phase under different sprinkle densities of existing packed tower.
The instantiation mode
The present invention is described in further detail below in conjunction with accompanying drawing: as shown in Figure 1, be arranged in order liquid distribution trough 1 in the tower body 2 from top to bottom, catalytic distillation compounded mix 3, gripper shoe 4, gas distributor 5; The catalytic distillation compounded mix is made of taper guiding device 6, catalytic filler layer 7 and structured filling material layer 8, and catalytic filler layer 7 is regular packing box.Catalytic filler layer 7 is along the expanded metals width spring 10 to be set evenly by the side that the catalyst filling layer 9 that is provided with between two boards net and the two boards net reaches at two net sheets, the length of expanded metals and the equal in length of spring, through rolling into helical form, as shown in Figure 2 in the concentric circles mode.The packing box that the catalytic distillation compounded mix is installed on every gripper shoe is at least 3 dishes.Taper guiding device 6 is divided into inside and outside two-layer, and skin is the bar valve structure, and internal layer is a square shaped teeth overflow structure, as shown in Figure 3 and Figure 4.
Above-mentioned catalysis compounded mix is installed in tower and is amounted to 2 layers, the every layer 3 identical filler of dish specification, and change 60 ° along clockwise direction when lower floor's filler is installed.The height of catalytic distillation compounded mix dish is 500mm, and wherein: taper guiding device 6 highly is 10mm, outward-dipping 30 ° of outer field valve structure; Catalytic filler layer 7 highly is 340mm, and diameter is 174mm, and the grid area of used expanded metals is 25mm
2, expanded metals thickness is 0.3mm; Structured filling material layer 8 highly is 150mm, and diameter is 174mm.Catalyst filling layer 9 is a highly acidic resin.The diameter of spring 10 is 10mm, and totally 3 circles are evenly arranged.
On University Of Tianjin's hydrodynamics experimental provision, carried out the hydrodynamic performance of the compound structured packing of catalytic distillation and measured, and with produce in catalytic rectification packing commonly used compare.Concrete operations are as follows: liquid enters cat head from fluid reservoir via pump, the slotted disc type distributor evenly distributes liquid, fall in the bar lobe shape liquid guide flow device, under the effect of guiding device, liquid was divided into two parts and flowed down along the intranet and extranet wall of catalytic rectification packing this moment.Gas enters in the tower through the bottom of blower fan from tower, evenly enters the catalytic rectification packing layer through behind the gas distribution grid, flows with liquid countercurrent.Because the packing layer internal pore is to be supported by the even skeleton of spiral net to form, pore size is even, makes that gas-liquid two-phase fluid is difficult for stopping up in packing layer.Gas-liquid two-phase is after the contact of catalytic rectification packing layer, and liquid flow at the bottom of the tower, enters water pump and recycles, and gas is then directly by the cat head emptying.
According to top test, we test in following number range catalyze rectification packing tower ,+
The catalytic distillation compounded mix of installing on every layer of gripper shoe 3 is 4 dishes-6 dishes.Taper baffle 6 is divided into inside and outside two-layer, and skin is the bar valve structure, and outward-dipping 15 °-75 °; Internal layer is a square shaped teeth overflow structure, and taper baffle height is 10mm-40mm.The structured packing dish height of catalytic filler layer 7 is 400mm-500mm, and diameter is 100mm-400mm, and every layer of structured packing section highly is 150mm-250mm, diameter 100mm-400mm.The mesh shape of the packing box expanded metals of catalytic filler layer 7 is a parallelogram, and the grid area is 18mm
2-12800mm
2, the thickness that draws in the net is 0.2mm-5mm.
From experimental data as can be seen: the compound structured packing of this catalytic distillation is compared with catalytic rectification packing commonly used, reduces in pressure drop under the identical operations condition that about liquid holdup slightly descends more than 10 times, but can guarantee that filler is all wetting.And sprinkle density reaches 44.9m
3/ m
2Still can normal running during h, and catalytic rectification packing sprinkle density commonly used surpasses 25m
3/ m
2H just can't normal running.
A kind of catalyze rectification packing tower that the present invention proposes, be described by embodiment, person skilled obviously can be changed or suitably change and combination preparation method as herein described in not breaking away from content of the present invention, spirit and scope, realizes the technology of the present invention.Special needs to be pointed out is, the replacement that all are similar and change apparent to those skilled in the artly, they are regarded as being included in spirit of the present invention, scope and the content.
Claims (7)
1. catalyze rectification packing tower, this tower comprises tower body (2), liquid distribution trough (1), catalytic filler device (3), gripper shoe (4), gas distributor (5); It is characterized in that the catalytic filler device is arranged in order formation from top to bottom by taper baffle (6), catalytic filler layer (7) and structured filling material layer (8), catalytic filler layer (7) is regular packing box.
2. catalyze rectification packing tower as claimed in claim 1, it is characterized in that described packing box (7) is along the expanded metals width spring (10) to be set evenly by the side that the catalyst filling layer (9) that is provided with between two boards net and the two boards net reaches at two net sheets, the length of expanded metals and the equal in length of spring are through rolling into helical form in the concentric circles mode.
3. catalyze rectification packing tower as claimed in claim 1 or 2 is characterized in that the structured packing dish that every layer of catalytic filler layer of described catalytic filler layer (7) installed is at least 3 dishes.
4. catalyze rectification packing tower as claimed in claim 1, it is inside and outside two-layer to it is characterized in that described taper baffle (6) is divided into, and skin is the bar valve structure, and outward-dipping 15 °-75 °; Internal layer is a square shaped teeth overflow structure, and taper baffle height is 10mm-40mm.
5. catalyze rectification packing tower as claimed in claim 1 is characterized in that the structured packing dish height of described catalytic filler layer (7) is 400mm-500mm, and diameter is 100mm-400mm, and every layer of structured packing section highly is 150mm-250mm, diameter 100mm-400mm.
6. catalyze rectification packing tower as claimed in claim 1, the mesh shape that it is characterized in that the packing box expanded metals of described catalytic filler layer (7) is a parallelogram, the grid area is 18mm
2-12800mm
2, the thickness that draws in the net is 0.2mm-5mm.
7. catalyze rectification packing tower as claimed in claim 2, it is characterized in that described cone cap shape water conservancy diversion dress body, the helical cylindrical net catalytic distillation is regular to be filled out, and plate ripple arranged packing and spring bracing ring are material of the same race and make, a kind of for stainless steel, carbon steel, pottery or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101509201A CN100551478C (en) | 2007-12-11 | 2007-12-11 | Catalyze rectification packing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101509201A CN100551478C (en) | 2007-12-11 | 2007-12-11 | Catalyze rectification packing tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101254353A true CN101254353A (en) | 2008-09-03 |
| CN100551478C CN100551478C (en) | 2009-10-21 |
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ID=39889662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101509201A Active CN100551478C (en) | 2007-12-11 | 2007-12-11 | Catalyze rectification packing tower |
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| CN (1) | CN100551478C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920126A (en) * | 2009-06-09 | 2010-12-22 | 巴斯夫欧洲公司 | Purposes with structured packing of one or more rafts and one or more separating layers |
| CN102614677A (en) * | 2012-04-24 | 2012-08-01 | 宜兴汉光高新石化有限公司 | Multi-layer rectification tower |
| CN103611488A (en) * | 2013-12-06 | 2014-03-05 | 南京化工职业技术学院 | Spiral-plate corrugated structured packing |
| CN104147805A (en) * | 2014-08-15 | 2014-11-19 | 苏州市兴鲁空分设备科技发展有限公司 | Gas separation unit |
| CN104436733A (en) * | 2014-11-30 | 2015-03-25 | 林国友 | Medium-and-small sized packing tower |
| CN104436732A (en) * | 2014-11-30 | 2015-03-25 | 林国友 | Novel packed tower |
| CN104607137A (en) * | 2013-11-05 | 2015-05-13 | 中国石油化工股份有限公司 | Waterdrop-shaped grid type structured packing |
| CN106573214A (en) * | 2014-06-26 | 2017-04-19 | 巴斯夫公司 | Low pressure drop packing material structures |
| CN109603185A (en) * | 2018-12-28 | 2019-04-12 | 中国二冶集团有限公司 | Pipe fitting method is crossed between two rectifying column platforms |
-
2007
- 2007-12-11 CN CNB2007101509201A patent/CN100551478C/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920126A (en) * | 2009-06-09 | 2010-12-22 | 巴斯夫欧洲公司 | Purposes with structured packing of one or more rafts and one or more separating layers |
| CN101920126B (en) * | 2009-06-09 | 2015-01-28 | 巴斯夫欧洲公司 | Usage of structured packing with one or a plurality of backing plate layers and separation layers |
| CN102614677A (en) * | 2012-04-24 | 2012-08-01 | 宜兴汉光高新石化有限公司 | Multi-layer rectification tower |
| CN104607137A (en) * | 2013-11-05 | 2015-05-13 | 中国石油化工股份有限公司 | Waterdrop-shaped grid type structured packing |
| CN104607137B (en) * | 2013-11-05 | 2016-08-17 | 中国石油化工股份有限公司 | A kind of water-drop-shaped grating type structured packing |
| CN103611488A (en) * | 2013-12-06 | 2014-03-05 | 南京化工职业技术学院 | Spiral-plate corrugated structured packing |
| CN106573214A (en) * | 2014-06-26 | 2017-04-19 | 巴斯夫公司 | Low pressure drop packing material structures |
| CN104147805A (en) * | 2014-08-15 | 2014-11-19 | 苏州市兴鲁空分设备科技发展有限公司 | Gas separation unit |
| CN104436733A (en) * | 2014-11-30 | 2015-03-25 | 林国友 | Medium-and-small sized packing tower |
| CN104436732A (en) * | 2014-11-30 | 2015-03-25 | 林国友 | Novel packed tower |
| CN109603185A (en) * | 2018-12-28 | 2019-04-12 | 中国二冶集团有限公司 | Pipe fitting method is crossed between two rectifying column platforms |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100551478C (en) | 2009-10-21 |
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