CN205774198U - A kind of response system of the ethylene processed of vacuum based solvent regeneration - Google Patents
A kind of response system of the ethylene processed of vacuum based solvent regeneration Download PDFInfo
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- CN205774198U CN205774198U CN201620557211.XU CN201620557211U CN205774198U CN 205774198 U CN205774198 U CN 205774198U CN 201620557211 U CN201620557211 U CN 201620557211U CN 205774198 U CN205774198 U CN 205774198U
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- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000005977 Ethylene Substances 0.000 title claims abstract description 39
- 230000008929 regeneration Effects 0.000 title claims abstract description 39
- 238000011069 regeneration method Methods 0.000 title claims abstract description 39
- 239000002904 solvent Substances 0.000 title claims abstract description 29
- 230000004044 response Effects 0.000 title claims abstract description 9
- 239000002002 slurry Substances 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000001257 hydrogen Substances 0.000 claims abstract description 42
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 42
- 239000003054 catalyst Substances 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 38
- 230000008676 import Effects 0.000 claims abstract description 29
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 28
- 238000004821 distillation Methods 0.000 claims abstract description 23
- 239000007791 liquid phase Substances 0.000 claims abstract description 22
- 239000007790 solid phase Substances 0.000 claims abstract description 21
- -1 hydrogen alkynes Chemical class 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000009833 condensation Methods 0.000 claims abstract description 17
- 230000005494 condensation Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000004571 lime Substances 0.000 claims abstract description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 19
- 238000005406 washing Methods 0.000 claims description 10
- 210000002966 serum Anatomy 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 5
- 238000005204 segregation Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 27
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 27
- 238000000034 method Methods 0.000 description 21
- 239000000047 product Substances 0.000 description 17
- 239000003921 oil Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003085 diluting agent Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 239000008246 gaseous mixture Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000470 constituent Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- CQBLUJRVOKGWCF-UHFFFAOYSA-N [O].[AlH3] Chemical compound [O].[AlH3] CQBLUJRVOKGWCF-UHFFFAOYSA-N 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 150000003233 pyrroles Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
This utility model relates to the response system of the ethylene processed of a kind of vacuum based solvent regeneration.Described system includes hydrogen alkynes mixing pressure unit, hydrogenation reaction unit, film separation unit, vacuum filter element, high-temperature steam and revolving bed regeneration unit and vacuum low-pressure distillation unit；Hydrogenation reaction unit includes slurry bed system, slurry bed system attemperating unit, gas-liquid condensation separating unit；The gas products import of gas-liquid condensation separating unit connects the gas products outlet of described slurry bed system, the condensate outlet of described gas-liquid condensation separating unit connects the lime set import of described slurry bed system, and the gas outlet of described gas-liquid condensation separating unit connects the gas feed of described film separation unit；The liquid phase material outlet of described vacuum filter element connects described vacuum low-pressure distillation unit, and the solid-phase material outlet of described vacuum filter element connects described high-temperature steam and revolving bed regeneration unit.It is big that this utility model has operating flexibility, the advantage adaptable to catalyst.
Description
Technical field
This utility model generally relates to the response system of a kind of ethylene processed, is specifically related to the second processed of a kind of vacuum based solvent regeneration
The response system of alkene.
Background technology
Ethylene is a kind of primary raw material of petro chemical industry, and current process of preparing is mainly splitting by Petroleum
Solve alkene processed and olefin hydrocarbon making by coal.Within 2015, domestic ethylene aggregated capacity reaches about 22,000,000 t/a, and the year two thousand twenty domestic ethylene production capacity is entered
One step will be added to 32,500,000 t/a, and expecting the year two thousand twenty domestic ethylene consumption figure is 48,000,000 tons/year, then will appear from demand
Phenomenon more than production capacity.Serious strategy threat is constituted for this China that oil reserve is not enriched.Therefore, seek separately
A kind of new source and process, thus can be at field of industrial production petroleum replacings to prepare ethylene, it is possible to largely
Alleviate China's dependency for petroleum.
In coal chemical technology, pass through carbide technique or with natural gas for raw material by Non-catalytic partial oxygen with coal for raw material
Metallization processes produces acetylene, has been widely used.With acetylene as raw material, under selective hydrocatalyst effect, standby by Hydrogenation
Ethylene product, can expand Development of Coal Chemical Industry approach further.And the downstream product polrvinyl chloride (PVC) that acetylene is main in the last few years
Supply exceed demand, and PVC industrial profit is the highest, is badly in need of expanding acetylene downstream product industrial chain；And polyethylene price is with oil valency
Lattice wave is dynamic very big, and other downstream product such as ethylene glycol, and butanediol, acrylic acid, polyvinyl alcohol etc. also have good economic worth.
Therefore, the novel technique of exploitation producing ethylene with acetylene hydrogenation can be that ethylene industry provides a kind of new raw material source, and reduces second
The alkene degree of dependence to petroleum resources and the production cost of ethylene, have broad application prospects.
Although acetylene selective hydrogenation is the current focus of attention, report both domestic and external also compares many, but its research contents master
Concentrate on and remove cracking petroleum hydrocarbon and prepare the acetylene (0.01 5 volume %) of trace during ethylene process.Acetylene hydrogenation is
Strong exothermal reaction, high concentration acetylene hydrogenation is released a large amount of reaction heat, bed shifting heat difficulty, is easily caused catalysqt deactivation, side reaction
Increase, yield of ethene declines, so the method for the special catalysis selective hydrogenation ethylene with high concentration acetylene as raw material is few
Exploration, corresponding industrialization large-scale application is had to have no report especially.
Therefore, in order to avoid the fixed bed temperature runaway phenomenon of high purity acetylene Hydrogenation ethylene, reaction heat shifting heat in traditional method
Difficulty and bed pressure drop is big, slurry reactor pressure is low, production capacity is little problem and green oil gather, affect catalyst activity
Problem, it is necessary to propose the response system of the ethylene processed of a kind of new vacuum based solvent regeneration.
Utility model content
The purpose of this utility model is the response system of the ethylene processed providing a kind of vacuum based solvent to regenerate, to solve tradition
The fixed bed temperature runaway phenomenon of high purity acetylene Hydrogenation ethylene in method, reaction heat move heat difficulty and bed pressure drop is big, slurry bed system is anti-
The problem answer pressure is low, production capacity is little problem and green oil accumulation, affecting catalyst activity.
This utility model provides the response system of the ethylene processed of a kind of vacuum based solvent regeneration, and described system includes that hydrogen alkynes mixes
Close pressure unit, hydrogenation reaction unit, film separation unit, vacuum filter element, high-temperature steam and revolving bed regeneration unit and true
Empty low-pressure distillation unit；Described hydrogenation reaction unit includes slurry bed system, slurry bed system attemperating unit, gas-liquid condensation separating unit, its
In, described slurry bed system be provided with combi inlet port, gas products outlet, lime set import, serum outlet and heat transferring medium import,
Heat transferring medium exports；Described combi inlet port connects described hydrogen alkynes mixing pressure unit；Described serum outlet connects described vacuum
Filter element；Described slurry bed system attemperating unit is exported by described heat transferring medium, heat transferring medium import connects with described slurry bed system；
The gas products import of described gas-liquid condensation separating unit connects the gas products outlet of described slurry bed system, the condensation point of described gas-liquid
Condensate outlet from device connects the lime set import of described slurry bed system, and the gas outlet of described gas-liquid condensation separating unit connects institute
State the gas feed of film separation unit；It is single that the liquid phase material outlet of described vacuum filter element connects the distillation of described vacuum low-pressure
Unit, the solid-phase material outlet of described vacuum filter element connects described high-temperature steam and revolving bed regeneration unit.
Above-mentioned system, described hydrogen alkynes mixing pressure unit is venturi mixer.
Above-mentioned system, the hydrogen inlet phase of the hydrogen outlet of described film separation unit and described hydrogen alkynes mixing pressure unit
Even.
Above-mentioned system, described slurry bed system attemperating unit includes electric heater, condenser and automatic temperature control system.
Above-mentioned system, the solvent outlet of described vacuum low-pressure distillation unit connects the colvent inlet of described slurry bed system；Institute
State high-temperature steam and revolving bed regeneration unit includes the most connected high-temperature steam washing device and revolving bed, described revolving bed
Discharging opening is connected with the catalyst inlet of described slurry bed system.
The system of ethylene processed of the vacuum based solvent regeneration that this utility model provides, it is to avoid high purity acetylene Hydrogenation ethylene is consolidated
Fixed bed temperature runaway, reaction heat move the problem that heat is difficult and bed pressure drop is big, slurry reactor pressure is low, production capacity is little, and this reality
There is operating flexibility greatly with novel, the advantage adaptable to catalyst.
This utility model uses venturi mixer to realize the mixing of high pressure hydrogen and low pressure acetylene, it is to avoid mixed pressure
The use of contracting machine, and then reduce the potential safety hazard of compression acetylene, reduce the investment of equipment simultaneously.
This utility model uses gas membrane Seperation Technology so that process efficient, energy-saving and environmental protection, and filter process is simple, be prone to
Control.
This utility model uses continuous vacuum to filter and low-pressure distillation technology, it is to avoid green oil accumulation, affect catalyst work
The defect of property, and achieve solvent reclamation.
This utility model uses high-temperature steam and revolving bed regenerated catalyst technology, it is achieved that catalyst on-line regeneration, fall
The low technique requirement to catalyst life so that in slurry bed system, catalyst activity is high, in stable condition.
Accompanying drawing explanation
Fig. 1 is the system schematic of the ethylene processed of the vacuum based solvent regeneration of a kind of embodiment of this utility model；
Fig. 2 is the workflow diagram of the ethylene processed of the vacuum based solvent regeneration of a kind of embodiment of this utility model.
In figure: 1-slurry bed system；2-condenser；3-gas-liquid condensation separating unit；4-film separation unit；The mixing of 5-hydrogen alkynes is all pressed
Unit；6-revolving bed；7-vacuum filter element；8-vacuum low-pressure distillation unit；9-slurry bed system attemperating unit；10-gas products
Outlet；11-lime set import；12-heat transferring medium import；13-heat transferring medium exports；14-slurry inlet；15-serum outlet；16-
Combi inlet port；17-heavy constituent exports；18-ethylene exports；19-high-temperature steam washing device；20-high-temperature steam entrance；21-
High-temperature steam outlet.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in more details, with
Just the advantage that better understood when scheme of the present utility model and its various aspects.But, specific implementations described below
Mode and embodiment are only descriptive purposes rather than to restriction of the present utility model.
As it is shown in figure 1, the system of the ethylene processed of a kind of vacuum based solvent regeneration, including hydrogen alkynes mixing pressure unit, hydrogenation instead
Answer unit, film separation unit, vacuum filter element, high-temperature steam and revolving bed regeneration unit and vacuum low-pressure distillation unit.Its
In, high-temperature steam and revolving bed regeneration unit include high-temperature steam washing device and the revolving bed being sequentially connected.
Hydrogen alkynes mixing pressure unit can use venturi mixer to replace gaseous mixture compressor, reduces the peace of compression acetylene
Full hidden danger, reduces the investment of equipment simultaneously.When venturi mixer is for application static mixer, two strands or more than two strands
Fluid, before entering static mixer, designs for each fluid streams smooth delivery of power.Fluid in course of conveying, often due to
Each fluid streams discharge pressure imbalance affects mixing ratio, selects venturi shaped allotter, venturi shaped to distribute in this case
Utensil has injection boosting pump performance, under conditions of ensureing time stream flow, makes the outlet pressure of material reach required pressure
Power.
Described hydrogenation reaction unit includes slurry bed system, slurry bed system attemperating unit, gas-liquid condensation separating unit, described slurry bed system
Being provided with combi inlet port, gas products outlet, lime set import, serum outlet and heat transferring medium to import and export, described gaseous mixture enters
Mouth connects hydrogen alkynes mixing pressure unit mixed gas outlet, and described serum outlet connects vacuum filter element, described slurry bed system temperature control
Device is provided with heat transferring medium and imports and exports, and is connected with slurry bed system heat transferring medium exit port respectively.Described gas-liquid condensation separating unit sets
Having gas products import, condensate outlet and gas outlet, condensate outlet connects slurry bed system lime set import, and described gas outlet is even
Connect film separation unit gas feed.
Further, described slurry bed system attemperating unit can include conduction oil attemperating unit, high pressure soft water attemperating unit, steam
Attemperating unit and flue gas attemperating unit.
Described vacuum filter element includes continuous vacuum defecator, is provided with slurry inlet, liquid phase material and solid-phase material
Outlet, the outlet of described liquid phase material connects vacuum low-pressure distillation unit, and solid-phase material outlet is steamed with high temperature through belt conveyer
The charging aperture of vapour and revolving bed regeneration unit connects.
Further, described vacuum low-pressure distillation unit includes low-pressure distillation column, is provided with liquid phase material import, solvent outlet
And heavy constituent outlet.
Further, described vacuum apparatus can include rotary drum vacuum filter, belt vacuum filter or tipping bucket
Formula vacuum filter.
This utility model uses continuous vacuum to filter and low-pressure distillation technology, it is to avoid green oil accumulation, affect catalyst work
The defect of property, and achieve solvent reclamation.
Further, the high-temperature steam washing device of described high-temperature steam and revolving bed regeneration unit is provided with high-temperature steam and enters
Mouth, high-temperature steam outlet and feed inlet and outlet, the charging aperture of high-temperature steam washing device is connected with the discharging opening of vacuum filter element,
Its discharging opening is connected with the charging aperture of revolving bed.Vapor (steam) temperature in high-temperature steam and revolving bed regeneration unit is 150 DEG C-230
℃.Described revolving bed is provided with feed inlet and outlet and gas inlet and outlet.Arranging high-temperature steam washing device before revolving bed is to use
High-temperature steam system catalyst surface attachments.Further, the steam (vapor) outlet of described high-temperature steam washing device is soft with high pressure
Water attemperating unit steam inlet or steam attemperating unit steam inlet are connected, for recovered steam heat.
This utility model uses high-temperature steam and revolving bed regeneration unit regenerated catalyst technology, it is achieved that catalyst is online
Regeneration, reduces the technique requirement to catalyst life so that in slurry bed system, catalyst activity is high, in stable condition.
The method of the ethylene processed of vacuum based solvent of the present utility model regeneration, comprises the steps:
1) mixing of hydrogen alkynes is all pressed
Low pressure acetylene and high pressure hydrogen are mixed by venturi mixer, realize hydrogen alkynes simultaneously and all press.
2) hydrogenation reaction
By step 1) gained gaseous mixture is passed through the slurry bed system in hydrogenation reaction operation, carries out acetylene selective hydrogenation reaction.
3) membrance separation
The gas-phase product of acetylene hydrogenation reaction being carried out membrance separation, obtains product ethylene, hydrogen more than needed sends into the mixing of hydrogen alkynes
Pressure process.
4) vacuum filters
Serosity in slurry bed system is drawn continuously, by vacuum filter isolated solid-phase material and liquid phase material.
5) high-temperature steam and revolving bed regeneration
Described solid-phase material is first through high-temperature steam eluting, then processes through revolving bed, obtains regenerated catalyst.
6) vacuum low-pressure distillation
Described liquid phase material is distilled by vacuum low-pressure, recycling design.
Wherein, low pressure acetylene pressure is 5KPa-40KPa, and temperature is 5-80 DEG C.Described high pressure hydrogen pressure is
0.44MPa-2.24MPa, temperature is 5-40 DEG C.Acetylene is 1:3-15 with the mol ratio of hydrogen.
Wherein, described solid-phase material includes catalyst and catalyst diluent.
Wherein, catalyst diluent includes that perlite particle, alumina particle, silicon oxide particle, molecular sieve (are crystalline states
Silicate or aluminosilicate, silicon-oxy tetrahedron or aluminum-oxygen tetrahedron be connected by oxygen bridged bond and formed.) and ceramic particle in
One or more；Catalyst diluent particle diameter is the 80%-120% of catalyst mean diameter；Catalyst diluent and catalysis
The mass ratio of agent is 0.1-10:1.
Wherein, the atmosphere of the revolving bed of high-temperature steam and revolving bed regeneration unit is hydrogen and nitrogen, and its mol ratio is 1:
2-8, the temperature in described revolving bed is 150-450 DEG C；Described high-temperature steam and the high-temperature steam of revolving bed regeneration unit and rotation
Vapor (steam) temperature in rotated bed regeneration unit is 150 DEG C-230 DEG C.
The system of ethylene processed of the vacuum based solvent regeneration that this utility model provides, it is to avoid in traditional method, high purity acetylene adds
Hydrogen ethylene fixed bed temperature runaway, reaction heat move heat difficulty and bed pressure drop is big, slurry reactor pressure is low, little the asking of production capacity
Inscribe, and this utility model has operating flexibility greatly, the advantage adaptable to catalyst.
Now with following most preferred embodiment, this utility model is described.Technique numerical value in following example is exemplary saying
Bright, concrete scope is as the criterion with the value in description.
Embodiment 1
As in figure 2 it is shown, the system of the ethylene processed of a kind of vacuum based solvent regeneration, it is characterised in that this system includes that hydrogen alkynes mixes
Close pressure unit 5, hydrogenation reaction unit, film separation unit 4, vacuum filter element 7, high-temperature steam and revolving bed regeneration unit and
Vacuum low-pressure distillation unit 8.Wherein high-temperature steam and revolving bed regeneration unit include again revolving bed 6 and high-temperature steam washing device
19.High-temperature steam washing device 19 is provided with high-temperature steam entrance 20 and high-temperature steam outlet 21, and high-temperature steam entrance 20 is for defeated
Enter high-temperature steam, high-temperature steam outlet 21 and high pressure soft water attemperating unit steam inlet or steam attemperating unit steam inlet phase
Even.
Described hydrogenation reaction unit includes slurry bed system 1, slurry bed system attemperating unit 9, gas-liquid condensation separating unit 3, described slurry
State bed is provided with combi inlet port 16, gas products outlet 10, lime set import 11, serum outlet 15 and heat transferring medium import and export
12,13, described combi inlet port 16 connects hydrogen alkynes mixing pressure unit mixed gas outlet, and described serum outlet 15 connects vacuum mistake
Filter unit 7, described attemperating unit 9 is provided with heat transferring medium import and export, go out with slurry bed system heat transferring medium respectively, import 13,12 even
Connecing, described gas-liquid condensation separating unit 3 is provided with gas products import, condensate outlet and gas outlet, and condensate outlet connects slurry
State bed 1 lime set import, junctional membrane separative element 4 gas feed of described gas outlet.Film separation unit 4 is provided with ethylene outlet
18。
Described vacuum filter element 7 includes continuous vacuum defecator, is provided with slurry inlet 14, liquid phase material and solid formation
Material outlet, the outlet of described liquid phase material connects vacuum low-pressure distillation unit, and solid-phase material exports through belt conveyer and high temperature
Steam and revolving bed charging aperture connect.
Described high-temperature steam and revolving bed regeneration unit, be provided with feed inlet and outlet and gas inlet and outlet.Wherein high-temperature steam is washed
The charging aperture that off loading is put exports with the solid-phase material of vacuum filter element 7 and is connected.The gas feed of revolving bed is used for inputting atmosphere
Hydrogen and nitrogen.The discharging opening of revolving bed is for being connected with the catalyst inlet of hydrogenation reaction unit.The gas outlet of revolving bed
For the atmosphere recirculation of output being exported the atmosphere entrance of self.
Described vacuum low-pressure distillation unit includes low-pressure distillation column, is provided with liquid phase material import, solvent outlet and heavy constituent
Outlet 17.Liquid phase material import is for connecting the liquid phase material outlet of vacuum filter element 7.Solvent outlet can be with hydrogenation reaction list
The lime set import of unit connects, and can realize recycling of solvent.Heavy constituent outlet 17 is used for exporting side-product green oil.The present embodiment
In, slurry bed system attemperating unit 9 is heat-conducting oil system, is provided with electric heater, condenser 2 and automatic temperature control system.
Embodiment 2
Using the system of embodiment 1, the technique of the ethylene processed that vacuum based solvent regenerates is:
By catalyst diluent aluminium oxide that particle diameter is 50 mesh-80 mesh and acetylene hydrogenation catalyst according to the mass ratio of 2:1
After example mix homogeneously forms solid-phase material, add slurry bed system inside and be mixed to form serosity with solvent N-first class ketopyrrolidine.Will
20KPa, the acetylene of 40 DEG C are mixed by venturi mixer by the mol ratio of 1:6 with the hydrogen of 0.44MPa, 5 DEG C, form mixing
Gas.Gaseous mixture enters serosity by slurry bed system internal gas distributor, reacts under the conditions of 130 DEG C.Reacted gaseous phase materials
Obtaining target product ethylene through membrance separation, the hydrogen of recovery mixes with raw hydrogen.Liquid phase material is through rotary drum vacuum filter
Obtain solid-phase material and liquid phase material.Solid-phase material is first through 150 DEG C of eluting of high-temperature steam, then delivers to revolving bed through belt, rotates
Bed atmosphere is hydrogen and nitrogen, and its mol ratio is 1:2, and solid-phase material obtains the catalyst of regeneration through 150 DEG C of reduction, and catalyst returns
Return slurry bed system to be continuing with.Liquid phase material pumps into vacuum low-pressure distillation column, and the N-first class ketopyrrolidine of recovery returns slurry bed system, weight
Component is green oil.
Embodiment 3
Using the system of embodiment 1, the technique of the ethylene processed that vacuum based solvent regenerates is:
By catalyst diluent perlite particle that particle diameter is 100 mesh-150 mesh with acetylene hydrogenation catalyst according to 10:1's
After ratio mix homogeneously forms solid-phase material, add slurry bed system inside and be mixed to form serosity with solvent N-first class ketopyrrolidine.Will
40KPa, the acetylene of 80 DEG C are mixed by venturi mixer by the mol ratio of 1:15 with the hydrogen of 2.2MPa, 10 DEG C, are formed mixed
Close gas.Gaseous mixture enters serosity by slurry bed system internal gas distributor, reacts under the conditions of 170 DEG C.Reacted gas gas-phase objects
Material obtains target product ethylene through membrance separation, and the hydrogen of recovery mixes with raw hydrogen.Liquid phase material filters through belt vacuum
Machine obtains solid-phase material and liquid phase material.Solid-phase material is first through 230 DEG C of eluting of high-temperature steam, then delivers to revolving bed through belt, rotation
Rotated bed atmosphere is hydrogen and nitrogen, and its mol ratio is 1:5, obtains the catalyst of regeneration through 450 DEG C of reduction, and catalyst returns slurry
Bed is continuing with.Liquid phase material pumps into vacuum low-pressure distillation column, and the N-first class ketopyrrolidine of recovery returns slurry bed system, and heavy constituent is i.e.
For green oil.
Embodiment 4
Using the system of embodiment 1, the technique of the ethylene processed that vacuum based solvent regenerates is:
It is the catalyst diluent silicon oxide particle of 100 mesh-150 mesh, molecular sieve and ceramic mixture and second by particle diameter
After alkynes hydrogenation catalyst forms solid-phase material according to the ratio mix homogeneously of 0.1:1, add slurry bed system inside and solvent N-first class
Ketopyrrolidine is mixed to form serosity.The acetylene of 5KPa, 5 DEG C is pressed the mol ratio of 1:3 by literary composition mound with 1.4MPa, the hydrogen of 40 DEG C
In blender mixing, formed gaseous mixture.Gaseous mixture enters serosity by slurry bed system internal gas distributor, under the conditions of 170 DEG C
Reaction.Reacted gaseous phase materials obtains target product ethylene through membrance separation, and the hydrogen of recovery mixes with raw hydrogen.Liquid phase
Material obtains solid-phase material and liquid phase material through belt vacuum filter.Solid-phase material is first through 190 DEG C of eluting of high-temperature steam, solid phase
Material delivers to revolving bed through belt, and revolving bed atmosphere is hydrogen and nitrogen, and its mol ratio is 1:8, is regenerated through 350 DEG C of reduction
Catalyst, catalyst return slurry bed system be continuing with.Liquid phase material pumps into vacuum low-pressure distillation column, the N-first class pyrroles of recovery
Alkanone returns slurry bed system, and heavy constituent is green oil.
It is last that it is noted that obviously above-described embodiment is only for clearly demonstrating this utility model example,
And not restriction to embodiment.For those of ordinary skill in the field, the most also may be used
To make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And thus
That is amplified out obviously changes or changes among still in protection domain of the present utility model.
Claims (5)
1. a response system for the ethylene processed of vacuum based solvent regeneration, described system includes that hydrogen alkynes mixing pressure unit, hydrogenation are anti-
Answer unit, film separation unit, vacuum filter element, high-temperature steam and revolving bed regeneration unit and vacuum low-pressure distillation unit；
Described hydrogenation reaction unit includes slurry bed system, slurry bed system attemperating unit, gas-liquid condensation separating unit, wherein, described slurry
Bed is provided with combi inlet port, gas products outlet, lime set import, serum outlet and heat transferring medium import, heat transferring medium goes out
Mouthful；Described combi inlet port connects described hydrogen alkynes mixing pressure unit；Described serum outlet connects described vacuum filter element；
Described slurry bed system attemperating unit is exported by described heat transferring medium, heat transferring medium import connects with described slurry bed system；
The gas products import of described gas-liquid condensation separating unit connects the gas products outlet of described slurry bed system, and described gas-liquid is cold
The condensate outlet of solidifying segregation apparatus connects the lime set import of described slurry bed system, and the gas outlet of described gas-liquid condensation separating unit is even
Connect the gas feed of described film separation unit；
The liquid phase material outlet of described vacuum filter element connects described vacuum low-pressure distillation unit, described vacuum filter element
Solid-phase material outlet connects described high-temperature steam and revolving bed regeneration unit.
System the most according to claim 1, it is characterised in that described hydrogen alkynes mixing pressure unit is venturi mixer.
System the most according to claim 1, it is characterised in that the hydrogen outlet of described film separation unit mixes with described hydrogen alkynes
The hydrogen inlet closing pressure unit is connected.
System the most according to claim 1, it is characterised in that described slurry bed system attemperating unit includes electric heater, condensation
Device and automatic temperature control system.
System the most according to claim 1, it is characterised in that the solvent outlet of described vacuum low-pressure distillation unit connects institute
State the colvent inlet of slurry bed system；Described high-temperature steam and revolving bed regeneration unit include the high-temperature steam washing device that order is connected
And revolving bed, the discharging opening of described revolving bed is connected with the catalyst inlet of described slurry bed system.
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