CN209242963U - Extract catalytic tower - Google Patents
Extract catalytic tower Download PDFInfo
- Publication number
- CN209242963U CN209242963U CN201821833837.4U CN201821833837U CN209242963U CN 209242963 U CN209242963 U CN 209242963U CN 201821833837 U CN201821833837 U CN 201821833837U CN 209242963 U CN209242963 U CN 209242963U
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- Prior art keywords
- reaction tower
- tower
- distributor
- redistributor
- filler assembly
- Prior art date
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- 230000003197 catalytic effect Effects 0.000 title claims abstract description 43
- 239000000284 extract Substances 0.000 title description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 69
- 239000000945 filler Substances 0.000 claims abstract description 51
- 239000012528 membrane Substances 0.000 claims abstract description 36
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 27
- 238000010992 reflux Methods 0.000 claims abstract description 23
- 230000018044 dehydration Effects 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000007792 gaseous phase Substances 0.000 claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims description 39
- 238000000605 extraction Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 20
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 239000010935 stainless steel Substances 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 12
- 239000003566 sealing material Substances 0.000 claims description 10
- 238000007747 plating Methods 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000002808 molecular sieve Substances 0.000 claims description 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- 230000002421 anti-septic effect Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- -1 wire mesh (402) Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 238000006116 polymerization reaction Methods 0.000 abstract description 9
- 239000000047 product Substances 0.000 description 38
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Natural products O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 35
- 239000007789 gas Substances 0.000 description 21
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 description 17
- 239000012071 phase Substances 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000006555 catalytic reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 230000008676 import Effects 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 4
- 238000005194 fractionation Methods 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 238000001308 synthesis method Methods 0.000 description 4
- 230000002194 synthesizing effect Effects 0.000 description 4
- 108091006146 Channels Proteins 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 210000004262 dental pulp cavity Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 238000012946 outsourcing Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005829 trimerization reaction Methods 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 125000001891 dimethoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- KWUUWVQMAVOYKS-UHFFFAOYSA-N iron molybdenum Chemical compound [Fe].[Fe][Mo][Mo] KWUUWVQMAVOYKS-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Abstract
Catalytic tower, including reaction tower are extracted, reaction tower internals includes: demister, distributor, filler assembly；The top in reaction tower be equipped with demister, its have distributor；Multistage filler assembly is loaded under distributor, and is designed with redistributor between each section of filler assembly；Filler assembly is connected to adjacent distributor, redistributor；Filler assembly is multifunctional membrane component or multifunction module component；Gaseous phase outlet is equipped at the top of reaction tower, bottom is equipped with discharge port, feed inlet is arranged in reaction tower bottom sidewall, the first reflux liquid inlet mouth that the filler assembly position of bottom is arranged in reaction tower side wall setting dehydration discharge outlet, reaction tower topmost distributor connection reaction tower side wall.The technical issues of the utility model can solve complex process in traditional equipment application process, time length, inefficiency, can not disposably realize dehydration, polymerization, catalytic process.
Description
Technical field
The utility model relates to the catalytic reaction device fields of Fine Chemical Industry, specially extraction catalytic tower.
Background technique
DMMn product is universally acknowledged environment-friendly type oil dope, but its production method is considerably complicated, needs to give birth to first
Metaformaldehyde, dimethoxym ethane, dimethyl ether etc. are produced, also to obtain purer raw material using technologies such as concentration, extraction, rectifying, drying
Or semi-finished product, qualified DMMn finished product can be finally obtained.Complex process, time length, low efficiency in traditional equipment application process
Under, thus be badly in need of it is a kind of can high-efficiency dehydration, polymerization, catalysis consersion unit.
Summary of the invention
In order to overcome the above technical defects and insufficient, the utility model provides a kind of extraction catalytic tower, solves to pass
Complex process during equipment application of uniting, time is long, inefficiency, can not disposably realize dehydration, polymerization, catalytic process skill
Art problem.
The utility model uses following technical scheme:
Catalytic tower, including reaction tower are extracted, the reaction tower internals includes: demister, distributor, filler assembly；
The top in the reaction tower be equipped with demister, its have distributor；Multistage filler assembly is loaded under the distributor, and
Redistributor is designed between each section of filler assembly；The filler assembly and the adjacent distributor, the redistribution
Device connection；
The filler assembly is multifunctional membrane component or multifunction module component；
The multifunctional membrane component or multifunction module component include multiple vertically arranged tubulation arrangements up and down
Fixed at tubulation bed by tube sheet, the tubulation whole body is provided with multiple apertures, in the tubulation insertion be fired into up and down
Function pipe, functional membrane made of the compound firing of function pipe internal surface, the function pipe is interior to fill filler；
The upper and lower side setting sealing material in the gap between the tubulation and function pipe, which seals, to be fixed；The filler assembly with
The adjacent distributor, the redistributor pass through function pipe connection and constitute reaction channel；It is the filler assembly, described
Redistributor constitutes dehydration runner with described react between tower side wall；
Gaseous phase outlet is equipped at the top of the reaction tower, bottom is equipped with discharge port, the reaction tower bottom sidewall setting charging
Mouthful, the filler assembly position of bottom is in reaction tower side wall setting dehydration discharge outlet, the reaction tower topmost distributor
It is connected to the first reflux liquid inlet mouth being arranged on the reaction tower side wall；
Tube sheet described in the bottom is closed water-accepting board, and each tube sheet more than bottom is connected to by downspout, most
Be provided with vacuum orifice on the high-rise tube sheet, and connect external pumped vacuum systems, it is outside each section of tubulation, connected by downspout
It is pumped into negative pressure in logical all spaces.
Redistributor in the middle part of the reaction tower is connected to the second reflux liquid inlet mouth being arranged on the reaction tower side wall.
The diameter of the apertureFor 1-50mm.
The function pipe Ceramics material sintering is made；The functional membrane Ceramics class material, diatom earthen materia,
In ZSM-5, SAPO-34 or zeolite molecular sieve any one with the function pipe internal surface is compound is made.
The filler filled in the multifunctional membrane component is the structured packing of columned stainless steel ripple silk net.
The demister, distributor inside redistributor are made of stainless steel ripple silk net；The distributor,
Redistributor is equipped with the flow-guiding mouth of multiple connection function pipes.
The filler filled in the multifunction module component is module catalyst；The module catalyst includes catalysis
Agent, wire mesh, wire mesh corrugated plating, the module catalyst is by the wire mesh, wire mesh corrugated plating interval
It is arranged in parallel, the catalyst granules is installed between wire mesh described in two panels and forms catalyst layer, and in the catalyst layer
The catalyst granules by the wire mesh corrugated plating apart from；The catalyst in the module catalyst
Interlayer is every setting.
It is that stainless steel ripple silk net arranges inside the demister, redistributor, the redistributor is equipped with
The flow-guiding mouth of multiple connection function pipes；The distributor is that stainless-steel sheet constitutes and is equipped with multiple connection function pipes
Flow-guiding mouth.
The sealing material selects polytetrafluoro gasket or metal wound gasket, antiseptic rubber pad.
The utility model has following positive beneficial effect:
The extraction catalytic tower of the utility model may be implemented disposably to realize dehydration in a single device, polymerize, urge
Change process substantially reduces the process time, reduces process complexity, when synthesizing DMMn product, significant effect.
Detailed description of the invention
Fig. 1 is the reacting flow chart of multifunctional membrane synthesizing triformol and the device of DMMn；
Fig. 2 is the structural schematic diagram of the catalytic tower in Fig. 1；
Fig. 3 is the cross section schematic cross-sectional view of the filler assembly of the catalytic tower in Fig. 2；
Fig. 4 is the longitudinal plane structure schematic diagram of single tubulation in catalytic tower in Fig. 2；
Fig. 5 is the tubulation function tube thickness section structure diagram of tubulose function membrane module；
Fig. 6 is the reacting flow chart of the device of one-step synthesis method DMMn；
Fig. 7 is the structural schematic diagram of the catalytic tower in Fig. 6；
Fig. 8 is the cross section schematic cross-sectional view of the filler assembly of the catalytic tower in Fig. 7；
Fig. 9 is the section structure diagram of module catalyst；
Figure 10 is the structural schematic diagram of the longitudinal cross-section of catalytic tower.
Accompanying drawing number: 1- methylal oxidation reactor, 2- reaction tower, 211- the first reflux liquid inlet mouth, 212- gaseous phase outlet,
213- feed inlet, 214- discharge port, 215- are dehydrated discharge outlet, 216- the second reflux liquid inlet mouth, 23- filler assembly, the more function of 25-
Energy membrane module, 251- tubulation, 252- aperture, 253- function pipe, 254- filler, 255- functional membrane, 26- redistributor, 27- pipe
Plate, 28- distributor, 29- multifunction module component, 4- fractionating column, 5- waste heat boiler, 6- heat exchanger, 7- condenser, 8- condensation
Tank, 9- reflux pump, 10- reboiler, the multi-stage fixed-bed reaction tower of 12-, 13- finished product fractionating column, 14- mixer, the fractionation of 15- finished product
The condenser of tower, the return tank of 16- finished product fractionating column, the reflux pump of 17- finished product fractionating column, the multi-stage fixed-bed reaction tower weight of 18-
Boiling device, the reboiler of 19- finished product fractionating column, 20- demister, 31- formalin evaporator, 32- return tank, 40- module are urged
Agent, 401- catalyst layer, 402- wire mesh, 403- wire mesh corrugated plating, 50- downspout.
Specific embodiment
Specific embodiments of the utility model will be further explained with reference to the accompanying drawing.
Following embodiment is only examples for clearly illustrating the present invention to clearly illustrate, and the implementation not to the utility model
The restriction of mode.For those of ordinary skill in the art, other can also be made not on the basis of the following description
With the variation or variation of form, and these belong to obvious changes or variations that the spirit of the present invention is drawn still in
Among the protection scope of the utility model.
Referring to each attached drawing, catalytic tower, including reaction tower 2 are extracted, 2 internals of reaction tower include: demister 20, divide
Cloth device 28, filler assembly 23；The top in the reaction tower 21 be equipped with demister 20, its have distributor 28；Described point
Cloth device 28 is lower to load multistage filler assembly 23, and is designed with redistributor 26 between each section of filler assembly 23；The filler
Component 23 is connected to the adjacent distributor 28, the redistributor 26；
The filler assembly 23 is multifunctional membrane component 25 or multifunction module component 29；
Referring to fig. 2,3,4,5, the multifunctional membrane component 25 or multifunction module component 29 include multiple vertically arranged
Tubulation 251 up and down is arranged in tubulation bed and is fixed by tube sheet 27, and 251 whole body of tubulation is provided with multiple apertures 252, described
The function pipe 253 up and down that insertion is fired into tubulation 251, function made of the compound firing of 253 inner surface of function pipe
Energy film 255, the function pipe 253 is interior to fill filler 254；
The upper and lower side setting sealing material in the gap between the tubulation 251 and function pipe 253, which seals, to be fixed；The filler
Component 23 is connected to by the function pipe 253 with the adjacent distributor 28, the redistributor 26 and constitutes reaction channel；
Dehydration runner is constituted between 2 side wall of the filler assembly 23, the redistributor 26 and the reaction tower；
Gaseous phase outlet 212 is equipped with referring to Fig. 1,6, at the top of the reaction tower 2, bottom is equipped with discharge port 214, the reaction tower
Feed inlet 213 is arranged in 2 bottom sidewalls, and dehydration discharge outlet is arranged in 2 side wall of reaction tower in 23 position of the filler assembly of bottom
215, the 2 topmost distributor of reaction tower is connected to the first reflux liquid inlet mouth 211 being arranged on 2 side wall of reaction tower；
Tube sheet 27 described in the bottom is closed water-accepting board, and each tube sheet 27 more than bottom is connected by downspout 50
It is logical, be provided with vacuum orifice on the top tube sheet 27, and connect external pumped vacuum systems, it is outside each section of tubulation 251,
Negative pressure is pumped by all spaces that downspout 50 is connected to.
Redistributor 26 positioned at 2 middle part of reaction tower is connected to the second reflux liquid inlet being arranged on the reaction tower side wall
Mouth 216.
The diameter of the aperture 252For 1-50mm.
253 Ceramics material of the function pipe sintering is made；The 255 Ceramics class material of functional membrane, diatomite
Any one in class material, ZSM-5, SAPO-34 or zeolite molecular sieve is made with the compound firing of 253 inner surface of function pipe
At.
The filler 254 filled in the multifunctional membrane component 25 is that columned the regular of stainless steel ripple silk net is filled out
Material.
The demister 20, distributor 28 inside redistributor 26 are made of stainless steel ripple silk net；Described point
Cloth device 28, redistributor 26 are equipped with the flow-guiding mouth of multiple connection function pipes 253.
Referring to Fig. 7,8,9, the filler 254 filled in the multifunction module component 29 is module catalyst 40；Institute
Stating module catalyst 40 includes catalyst, wire mesh 402, wire mesh corrugated plating 403, and the module catalyst 40 is by described
Wire mesh 402, the spaced and parallel setting of wire mesh corrugated plating 403, install between wire mesh 402 described in two panels described
Catalyst granules forms catalyst layer 401, and the catalyst granules in the catalyst layer 401 is by the wire mesh wave
Card 403 apart from；The catalyst layer 401 in the module catalyst 40 is spaced setting.
It is that stainless steel ripple silk net arranges inside the demister 20, redistributor 26, the redistributor 26
It is equipped with the flow-guiding mouth of multiple connection function pipes 253；The distributor 28 is that stainless-steel sheet constitutes and is equipped with multiple companies
Lead to the flow-guiding mouth of the function pipe 253.
The sealing material selects polytetrafluoro gasket or metal wound gasket, antiseptic rubber pad.
The upper and lower side setting sealing material in the gap between the tubulation 251 and function pipe 253, which seals, to be fixed, the sealing
Material selection polytetrafluoro gasket or metal wound gasket, antiseptic rubber pad；There are many conventional fixed for the fixed form of sealing material
Mode is optional, bolt fastener can be used to be fastened and fixed in the utility model.
The working principle of the utility model is as follows:
It is connected to distributor 28, redistributor 26 inside tubulation 251, form vertical gas phase and extracts channel, and tubulation 251
Aquaporin is formed between external and 2 inner wall of reaction tower.
Extract liquor flows into the column of filler assembly 23 through distributor 28 after the entrance of the first reflux liquid inlet mouth 211 of top of tower
In pipe 251, broken up by the filler 254 in tubulation 251.
After the entrance of the feed inlet 213 of tower bottom, the redistributor 26 through bottom enters in tubulation 251 oxic gas
Portion rise, through in the filler 254 functional membrane 255 inside extract liquor extraction and with functional membrane 255 generation dehydration, water by
It oozes out, converges in downwards on the tube sheet 27 of bottom to outside tubulation 251 out of aperture 252 in osmotic pressure, through being dehydrated discharge outlet 215
Outflow, the complete gas of unreacted continue to rise, repeat to react；The water of top reaction abjection flows upwardly to most bottom from the tube sheet 27 of leak
On the closing tube sheet 27 in portion；Gas is after repeatedly extraction, dehydration from gaseous phase outlet 212 after the demister 20 of tower top refines again
Discharge.Extraction phase after reaction is discharged by discharge port 214.
Application Example one
A kind of application of the present apparatus in multifunctional membrane synthesizing triformol and DMMn method:
Its step 1, into methylal oxidation reactor 1, is urged after being mixed by dimethoxym ethane raw material with air heating in iron molybdenum
Under agent effect, oxidation reaction occurs, exchanges heat after generating oxidation product discharge through heat exchanger 6, the extraction for importing multifunctional membrane is de-
The feed inlet 213 of water catalytic tower 2 enters in extraction catalytic dehydration reaction tower 2 through built-in redistributor 26, and physics occurs and urges
Change chemical reaction, and the first reflux liquid inlet mouth 211 enter extractant extraction under, generation and be dehydrated trimerization
The extraction phase of formaldehyde is discharged by discharge port 214, and residual gas continues to go upward to reaction tower gaseous phase outlet 212 in tower, remaining
Gas a part is emptied through processing, and another part returns to methylal oxidation reactor 1 and recycles.
Its step 2, metaformaldehyde extraction phase being generated by extraction catalytic dehydration reaction tower 2, being discharged by discharge port 214
The import of fractionating column 4 is imported, extraction phase is under the heat effect of 4 reboiler 10 of fractionating column, and gas phase (extractant) is through outlet guide
Enter condenser 7, drainer 8, reflux pump 9 and divide two-way: is flowed back into fractionating column 4 all the way, another way is back to extraction catalytic dehydration
2 inlet 211 of reaction tower recycles, and produces among metaformaldehyde that 4 tower bottom of fractionating column outlet discharge is refined, high-purity
Product.
Its step 3, the high-purity metaformaldehyde obtained by step 2 is in mixer 14 with high-purity dimethoxym ethane with certain proportion
It is sufficiently mixed, imports in multi-stage fixed-bed reaction tower 12, under the action of resin catalyst, continuous polymerization chemical reaction occurs,
DMMn first product is produced, and obtains DMM3-6 final products through the fractionation of finished product fractionating column 13.Gas phase discharge in finished product fractionating column 13
Multistage is flowed back by the reflux pump 17 of the condenser 15 of finished product fractionating column, the return tank 16 of finished product fractionating column, finished product fractionating column
In fixed bed reaction tower 12.
The method of multifunctional membrane synthesizing triformol and DMMn, for summary the following steps are included:
(1) oxidation reaction；
(2) polymerization reaction；
(3) extraction reaction；
(4) it is fractionated；
(5) DMMn is synthesized.
When this patent is applied in the polymerization of step (2) and (3) is reacted with extraction, the catalytic tower 2 (CTC tower),
Inside is filled with the multifunctional membrane component 25 for integrating dehydration, catalysis, and this component is fired by functional membrane 255, function pipe 253
At in tubulation 253 made of the solid insertion backing material such as steel tubular, the material of functional membrane 255 is that have to catalyze and synthesize
The material of metaformaldehyde function is formed, specially ceramic-like, diatom great soil group, ZSM-5, SAPO-34, zeolite molecular sieve etc.,
After functional membrane is made in middle ZSM-5, SAPO-34, zeolite molecular sieve, not only there is dehydrating function, but also itself be even more with superb
Catalysis, structure, shape such as Fig. 3,4,5；The material that functional membrane 255 is selected in the present embodiment one is ZSM-5, it
Being formed by molecule inner hole is 1-5 × 10-1Nm, function pipe 253 are fired into ceramic tube by ceramics 75, wherein Al2O3Content control
75% or more, remaining component, can be with outsourcing conventionally, ceramics 75 are current material；Tubulation is metal tube.And catalytic tower
2 are made of tower internals, multifunctional membrane component 25, tower internals include: demister 20, redistributor 26, filler assembly 23 and
The tube sheet 27 of fixed multifunctional membrane component 25.The arrangement of multifunctional membrane component 25 is inserted into tubulation such as tubulation bed, function pipe 253
In 251,251 whole body of tubulation is provided with diameterSeveral aperture 252 of quantity is left in time with the water that toilet is deviate from
Material system and be discharged；It is fixed between tubulation 251 and function pipe 253 with sealing material such as gasket sealing, material is not gone here and there mutually
It is logical, and the pressure inside and outside function pipe 253 differs, and inside positive pressure has osmotic pressure relative to outside, is conducive to take off
Water from function pipe 253 exudation, through on tubulation 251 aperture 252 be discharged.Inner-tower filling material component 23 is loaded by section, loadings
It is N sections, 1≤N≤100, every section of height 1-3m；Every section of filling function pipe 253 is M root, 1≤M≤5000；Every root canal diameter be D, 5
≤ D≤200cm, is designed with redistributor 26 between every section, the first reflux liquid inlet mouth 211 on tower top be extractant import it
It is equipped with demister 20, effect is that the extractant for leading to gaseous phase outlet 212 is recycled completely；The tube body of every root functionality pipe 253
Inside fill the stainless steel ripple gauze structured packing such as cylindrical in geometry.
Application Example two
Application of the present apparatus in the method for one-step synthesis method DMMn:
Its step 1 vaporizes the formalin of 5-99% first in formalin evaporator 31.
Its step 2, dehydration, polymerization, synthesis, physical-chemical reaction occur simultaneously: by 2 feed inlet 213 of catalytic tower
The gaseous phase materials that the step of imported one generates are imported the function pipe 253 of multifunction module component 29 by lower distributor first
Tube side under the catalytic dehydration of the filler assembly 23 in tower acts synergistically, occurs polymerization reaction and generates metaformaldehyde aqueous solution, so
Afterwards as air-flow continues uplink, it is dehydrated on one side, it is being come head-on on one side, by the second reflux liquid inlet mouth 216, the first reflux liquid inlet
211 dimethoxym ethane (hereinafter referred to as M1), poly- dimethoxys two be separately added into and being distributed by middle distributor and upper distributor 28 of mouth
Methyl ether (hereinafter referred to as M2) is absorbed, and the module catalyst 40 of multifunction module component 29 continue effect under, continue into
The chemical reaction of row synthesis DMMn, since DMMn density is big, and gradually downlink eventually falls into tower bottom, but is dehydrated simultaneously in functional membrane
Function under the action of, will from dehydration discharge outlet 215 water taken off, the concentration meeting of the formaldehyde, metaformaldehyde of downlink constantly be discharged
It is higher and higher, and the concentration of formaldehyde in the air-flow of uplink, metaformaldehyde can be lower and lower, and is up to adjacent redistributor
Absorbent i.e. M1, M2 mass-and heat-transfer for continuing when 26 and coming head-on continues uplink and comes adjacent second segment multifunction module
In the tube side of the function pipe 253 of component 29, the water in the de- formalin in physical-chemical reaction, that is, side is carried out again, while by formaldehyde
Aggregate into metaformaldehyde, Bian Hecheng DMMn, so in cycles, until in gaseous component formaldehyde, metaformaldehyde reaction thoroughly,
It reacts remaining gas phase to continue in tower after going upward to demister 20, the metaformaldehyde in entrainment is removed completely, then by
Gaseous phase outlet 212 be discharged, this partial gas phase component, main component is dimethoxym ethane M1, then successively through condenser 7, return tank 32, return
Stream pump 9, then flow back into the second inlet 216 the reaction was continued, it recycles；And DMMn product is discharged by the discharge port 214 of tower, is led
Enter in finished product fractionating column 13, and in the shell side of catalytic dehydration reaction tower 2, make in the dual function that its negative pressure, functional membrane are dehydrated
Under, the water in the water taken off i.e. formalin is discharged outside tower by dehydrated mouth 215.
Its step 3, finished product fractionation: referring to Fig. 6, DMMn first product obtained in step 2 by finished product fractionating column 13 import
After importeding into finished product fractionating column 13, it is fractionated under the heated condition of the reboiler 10 of finished product fractionating column, obtains gas phase and liquid
Phase；Gas phase is absorbent M2, and gas phase is discharged and enters in the condenser 15 of finished product fractionating column through exhaust outlet and condensed, condensed
The M2 of the liquid obtained afterwards, followed by two-way is divided into after the return tank 16 of finished product fractionating column, the reflux pump 17 of finished product fractionating column,
It is back in finished product fractionating column 13 all the way, is back in catalytic dehydration reaction tower 2 and recycles all the way；13 bottom of finished product fractionating column
Liquid phase is high-purity DMMn finished product, is discharged by outlet and is acquired by finished pot.
The device reaction step of one-step synthesis method DMMn can be summarized as:
(1) formalin vaporizes；
(2) it is dehydrated, polymerize, synthesis, physical-chemical reaction occurs simultaneously；
(3) fractionation reaction.
The course of work of the catalytic tower 2 of the utility model in the reaction of one-step synthesis method DMMn are as follows: step first
(1) gas obtained is entered by feed inlet 213, into the tube side of function pipe 253 in multifunction module component 29, in the present embodiment
The material that functional membrane 255 is selected in two is ZSM-5, and being formed by molecule internal orifice dimension is 2-3x10-1Nm, function pipe 253 is by ceramics
75 are fired into ceramic tube, wherein Al2O3Content is 75%, remaining component conventionally, ceramics 75 be current material, can be with outsourcing；Column
Pipe is metal tube.Catalyst granules in 29 internal module catalyst 40 of multifunction module component selects D006 resin catalyst,
Under catalysis and the dehydrating function synergistic effect of filler assembly 23 in catalytic tower 2, polymerization reaction occurs and generates trimerization
Formalin, the extractant to be come head-on then as oxidizing gas stream continuation uplink, which extracts, gradually falls into tower bottom, but
Simultaneously under the action of the function that filler assembly 23 is dehydrated, the concentration of metaformaldehyde can be higher and higher, and the oxidizing gas stream of uplink
The concentration of middle metaformaldehyde can be lower and lower, and when being up to adjacent redistributor 26 in the extractant that comes head-on not
The formaldehyde components mass-and heat-transfer of reaction continues uplink and comes in the tube side of adjacent second segment filler assembly 23, continues object
Physicochemical reaction, so in cycles, on the formaldehyde reaction in oxidation component is thorough, and reaction residual gas continues in tower
After row to demister 20, the extractant of entrainment is removed completely, then is discharged by gaseous phase outlet 212；And the extraction of metaformaldehyde
It takes and is mutually entered in finished product fractionating column 13 through 2 discharge port 214 of catalytic tower, and be dehydrated in shell side in its negative pressure, functional membrane
Dual function effect under, the water that takes off by the discharge tower of dehydrated mouth 215 outside.
The design of catalytic dehydration reaction tower 2 is as follows: multifunction module component 29, and loadings are 3 sections, every section of height 1m；
Every section of filling function pipe 253 is 5；Every root canal diameter is 5cm, and redistributor 26, tower the top first go back to are designed between every section
Flowing inlet 211 is that demister 20 is equipped on extractant import, and the tube body of every root functionality pipe 253 is provided with such as patent
CN211621189748.5 module catalyst 40；Demister 20, redistributor 26, material are all by stainless steel ripple silk net
It is constituted.
The operating condition design of catalytic dehydration reaction tower 2 is as follows:
Catalyst operation condition are as follows: 70-90 DEG C of tower top temperature, 0.1MPa, 80-100 DEG C of bottom temperature, 0.2MPa, by 2E mouthfuls
It is added dimethoxym ethane 228g (amount of three times moles of formaldehyde)；
Dehydrating operations condition are as follows: the outside of function pipe 253 is cased with tubulation 251, is provided with diameter all over the bodyQuantity
Several apertures 252 facilitates except the timely discharge system of deviate from water, and controls operating pressure are as follows: -0.03Mpa；It is de-
The water of 40g formalin out is discharged from dehydrated mouth 215；
Synthesize DMMn: under the action of module catalyst 40,1 mole of formaldehyde is generated with 1 mole of dimethoxym ethane
The poly- dimethoxy dimethyl ether (M2) of 106.0g is discharged by discharge port 214, and is imported into finished product fractionating column 13, and through distilling,
Gas phase passes through condenser 7, reflux pump 9, and being again introduced into catalytic dehydration reaction tower 2 by the first reflux liquid inlet mouth 211, the reaction was continued.
After the DMMn first product obtained by step 2 enters finished product fractionating column 13, finished product fractionating column 13 reboiler 10 plus
It is fractionated under Warm status, obtains gas phase and liquid phase；Gas phase is absorbent M2, and gas phase is discharged through exhaust outlet and enters condenser
It is condensed in 7, the M2 of the liquid obtained after condensation, followed by two-way is divided into after return tank 32, reflux pump 9, is flowed back all the way
Into finished product fractionating column 13, a routing 2 first refluxing opening inlet 211 of catalytic dehydration reaction tower is back to catalytic dehydration reaction
It is recycled in tower 2；13 bottom outlet liquid phase of finished product fractionating column is high-purity DMMn finished product, is discharged by outlet and is adopted by finished pot
Collection.
Claims (9)
1. extracting catalytic tower, including reaction tower (2), reaction tower (2) internals include: demister (20), distributor
(28), filler assembly (23)；It is characterized in that, the top in the reaction tower (21) is equipped with, demister (20), it is had
Distributor (28)；Multistage filler assembly (23) are loaded under the distributor (28), and between each section of filler assembly (23) all
Equipped with redistributor (26)；The filler assembly (23) is connected to the adjacent distributor (28), the redistributor (26)；
The filler assembly (23) is multifunctional membrane component (25) or multifunction module component (29)；
The multifunctional membrane component (25) or multifunction module component (29) include multiple vertically arranged tubulations up and down
(251) it is fixed by tube sheet (27) to be arranged in tubulation bed, the tubulation (251) is provided with multiple apertures (252), the tubulation all over the body
(251) the function pipe (253) up and down that insertion is fired into, made of the compound firing of function pipe (253) inner surface
Functional membrane (255), the function pipe (253) is interior to fill filler (254)；
The upper and lower side setting sealing material in the gap between the tubulation (251) and function pipe (253), which seals, to be fixed；The filler
Component (23) is connected to composition instead by the function pipe (253) with the adjacent distributor (28), the redistributor (26)
Answer channel；Dehydration runner is constituted between the filler assembly (23), the redistributor (26) and the reaction tower (2) side wall；
Gaseous phase outlet (212) are equipped at the top of the reaction tower (2), bottom is equipped with discharge port (214), reaction tower (2) bottom
Feed inlet (213) are arranged in side wall, and dehydration discharge outlet is arranged in reaction tower (2) side wall in the filler assembly (23) position of bottom
(215), reaction tower (2) the topmost distributor is connected to the first reflux liquid inlet mouth being arranged on reaction tower (2) side wall
(211)；
Tube sheet described in the bottom (27) is closed water-accepting board, and each tube sheet (27) more than bottom is by downspout (50)
It is connected to, vacuum orifice is provided on the top tube sheet (27), and connect external pumped vacuum systems, each section of tubulation
(251) outside, by downspout (50) be connected to all spaces be pumped into negative pressure.
2. extraction catalytic tower as described in claim 1, which is characterized in that be located at dividing in the middle part of the reaction tower (2) again
The second reflux liquid inlet mouth (216) being arranged on cloth device (26) the connection reaction tower side wall.
3. extraction catalytic tower as described in claim 1, which is characterized in that the diameter of the aperture (252)For 1-
50mm。
4. extraction catalytic tower as described in claim 1, which is characterized in that function pipe (253) the Ceramics material
Sintering is made；Functional membrane (255) the Ceramics class material, diatom earthen materia, ZSM-5, SAPO-34 or zeolite molecular sieve
In any one with function pipe (253) inner surface is compound is made.
5. extraction catalytic tower as described in claim 1, which is characterized in that filled in the multifunctional membrane component (25)
The filler (254) is the structured packing of columned stainless steel ripple silk net.
6. extraction catalytic tower as described in claim 1, which is characterized in that the demister (20), distributor (28), again
Distributor (26) is internal to be made of stainless steel ripple silk net；The distributor (28), redistributor (26) are equipped with more
The flow-guiding mouth of a connection function pipe (253).
7. extraction catalytic tower as described in claim 1, which is characterized in that filling in the multifunction module component (29)
The filler (254) be module catalyst (40)；The module catalyst (40) includes catalyst, wire mesh (402), gold
Belong to screen waviness plate (403), the module catalyst (40) is by the wire mesh (402), wire mesh corrugated plating (403)
Spaced and parallel setting installs the catalyst granules between wire mesh (402) described in two panels and forms catalyst layer (401),
And the catalyst granules in the catalyst layer (401) by the wire mesh corrugated plating (403) apart from；Described
The catalyst layer (401) in module catalyst (40) is spaced setting.
8. extraction catalytic tower as claimed in claim 7, which is characterized in that the demister (20), redistributor (26)
Inside is that stainless steel ripple silk net arranges, and the redistributor (26) is equipped with multiple connection function pipes (253)
Flow-guiding mouth；The distributor (28) is the flow-guiding mouth that stainless-steel sheet constituted and be equipped with multiple connection function pipes (253).
9. extraction catalytic tower as described in claim 1, which is characterized in that the sealing material selects polytetrafluoro gasket
Or metal wound gasket, antiseptic rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833837.4U CN209242963U (en) | 2018-11-08 | 2018-11-08 | Extract catalytic tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833837.4U CN209242963U (en) | 2018-11-08 | 2018-11-08 | Extract catalytic tower |
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| Publication Number | Publication Date |
|---|---|
| CN209242963U true CN209242963U (en) | 2019-08-13 |
Family
ID=67527463
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821833837.4U Withdrawn - After Issue CN209242963U (en) | 2018-11-08 | 2018-11-08 | Extract catalytic tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180440A (en) * | 2018-11-08 | 2019-01-11 | 凯瑞环保科技股份有限公司 | Extract catalytic tower |
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2018
- 2018-11-08 CN CN201821833837.4U patent/CN209242963U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180440A (en) * | 2018-11-08 | 2019-01-11 | 凯瑞环保科技股份有限公司 | Extract catalytic tower |
| CN109180440B (en) * | 2018-11-08 | 2024-03-19 | 凯瑞环保科技股份有限公司 | Extraction catalytic reaction tower |
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