CN208279528U - A kind of integrated acetylene recycle device - Google Patents
A kind of integrated acetylene recycle device Download PDFInfo
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- CN208279528U CN208279528U CN201820379151.6U CN201820379151U CN208279528U CN 208279528 U CN208279528 U CN 208279528U CN 201820379151 U CN201820379151 U CN 201820379151U CN 208279528 U CN208279528 U CN 208279528U
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- acetylene
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- separator
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- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 title claims abstract description 127
- 238000009833 condensation Methods 0.000 claims abstract description 81
- 230000005494 condensation Effects 0.000 claims abstract description 81
- 238000010992 reflux Methods 0.000 claims abstract description 51
- 239000007791 liquid phase Substances 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 121
- 239000007789 gas Substances 0.000 claims description 80
- 239000007792 gaseous phase Substances 0.000 claims description 57
- 230000008676 import Effects 0.000 claims description 33
- 239000012071 phase Substances 0.000 claims description 33
- 238000004064 recycling Methods 0.000 claims description 32
- 239000012267 brine Substances 0.000 claims description 31
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 17
- 238000007710 freezing Methods 0.000 claims description 12
- 230000008014 freezing Effects 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000013589 supplement Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 18
- 239000002994 raw material Substances 0.000 abstract description 13
- 239000002904 solvent Substances 0.000 abstract description 7
- 239000008246 gaseous mixture Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000004821 distillation Methods 0.000 abstract 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 27
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 16
- 239000003960 organic solvent Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 235000019441 ethanol Nutrition 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000003912 environmental pollution Methods 0.000 description 6
- 230000010354 integration Effects 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 150000001345 alkine derivatives Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- -1 acetylene hydrocarbon compound Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical class ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Abstract
The utility model relates to a kind of integrated acetylene recycle device, which includes that level-one condensation separator, B-grade condensation separator, fractional condensation reflux rectifying column and Acetylene Gas Holder, level-one, B-grade condensation separator are integrated with condenser and gas-liquid separator；Fractional condensation reflux rectifying column is integrated with rectifying column and tower top part condensation reflux device, and the processing of the acetylene tail gas to be recycled device obtains the higher acetylene gas of purity, and liquid phase enters fractional condensation reflux rectifying column after converging simultaneously；It is condensed back through tower bottom heating medium for heating, dephlegmator of top of the tower, the acetylene gas that fractional condensation reflux the top of the distillation column is handled with solidifying reflux rectifying column enters gas holder storage together, and tower bottom obtains the higher solvent circulating and recovering of purity.The utility model realizes the separation and recovery of acetylene Yu solvent gaseous mixture by using condensed in two stages separator and fractional condensation reflux rectifying column；The waste for reducing acetylene raw material reduces the discharge of polluted gas, has achieved the purpose that energy-saving and emission-reduction.
Description
Technical field
The utility model relates to a kind of integrated acetylene recycle devices.
Background technique
It is the inflammable gas of colourless aromatic odor under acetylene normal temperature and pressure, is that acetylene hydrocarbon compound series middle-molecular-weihydroxyethyl is the smallest
Substance.Acetylene often uses carbide and natural gas act to prepare, and mainly illuminating, weld and cut off metal (oxy arc), and makes
Make the base stock of acetaldehyde, acetic acid, benzene, synthetic rubber, synthetic fibers etc..
At present using acetylene often gas acetylene to be passed through in organic solvent anti-with other raw materials in the technique of raw materials for production
It answers.After reaction, the complete acetylene gas of unreacted and the organic solvent for being evaporated out become reaction end gas together, pass through
Absorption tower absorbs and the processing heel row such as activated carbon adsorption enter atmosphere.
Unreacted acetylene raw material is discharged as reactor off-gas, is led to the waste of raw material, is improved production cost；Reaction is useless
Gas is discharged into atmosphere, causes pollution to increase, improves Environmental costs.
The gas phase method for recovering tail gas of comparative maturity at present, there is cryogenic separation method, pressure swing adsorption method, membrane separation process etc., this
A little methods are in the recovery processing of the common gas material such as hydrogen, methane, ethylene, chloromethanes, ammonia using more；But it does not appear in the newspapers
Suitable, the mature acetylene reuse method in road.Lead to the existing production process for using acetylene as reaction raw materials, acetylene wastage of material is very
More, environmental pollution is also very big.And the methods for acetylene recycling a small number of at present are not suitable for not only containing only for specific reaction
The gas phase mixture of acetylene recycles, and device degree of integration is not high, can not modularization.
Utility model content
The purpose of this utility model is to provide a kind of suitable for the recycling of acetylene in gas phase mixture, integration of equipments degree
It is high, being capable of modular acetylene recycle device.
A kind of integrated acetylene recycle device, including by process flow connection level-one condensation separator, two
Grade condensation separator, fractional condensation reflux rectifying column and Acetylene Gas Holder, it is characterised in that:
The level-one condensation separator is integrated with first-stage condenser and level-one gas-liquid separator, and first-stage condenser is equipped with one
Grade gaseous phase materials import, circulating water intake and circulating water outlet, level-one gas-liquid separator be equipped with the outlet of level-one gaseous phase materials and
The outlet of level-one liquid phase material；
The B-grade condensation separator is integrated with secondary condenser and second level gas-liquid separator, and secondary condenser is equipped with two
The import of grade gaseous phase materials, the import of second level chilled brine and the outlet of second level chilled brine, second level gas-liquid separator are equipped with second level gas
Phase materials outlet and the outlet of second level liquid phase material, secondary gas phase material inlet are connect with level-one gaseous phase materials export pipeline；
The fractional condensation reflux rectifying column is integrated with rectifying column and tower top part condensation reflux device, and rectifying column is equipped with total liquid phase
Material inlet, heat medium import and heat medium export, the outlet of total liquid phase material, tower top part condensation reflux device are equipped with reflux freezing salt
Water inlet, reflux freezing brine outlet and the outlet of three-level gaseous phase materials, total liquid phase material import and the outlet of level-one liquid phase material, two
The outlet connection of grade liquid phase material；
The Acetylene Gas Holder is equipped with total gaseous phase materials import and total gaseous phase materials export, total gaseous phase materials import and second level
Gaseous phase materials outlet and three-level gaseous phase materials outlet connection, will recycling acetylene recycling through the outlet of total gaseous phase materials.
A kind of integrated acetylene recycle device, it is characterised in that water supplement port and emptying are additionally provided in Acetylene Gas Holder
Mouthful.
The integrated acetylene recovery process, it is characterised in that level-one condensation separator, B-grade condensation separator and fractional condensation
Reflux rectifying column is integrated into gas-liquid separation module, and the Acetylene Gas Holder is acetylene storage module.
The acetylene recovery process of the integrated acetylene recycle device, it is characterised in that include the following steps:
1) acetylene gaseous mixture to be recycled is condensed by the level-one that level-one gaseous phase materials import enters level-one condensation separator
Device is passed through recirculated water into first-stage condenser by circulating water intake and circulating water outlet, and acetylene gaseous mixture enters after condensing
Level-one gas-liquid separator carries out gas-liquid separation, and the gaseous phase materials after separation are exported from level-one gaseous phase materials to flow out；Liquid phase material from
Level-one liquid phase material outlet outflow；
2) gaseous phase materials after separating enter second level through secondary gas phase material inlet after level-one gaseous phase materials outlet outflow
In the secondary condenser of condensation separator, is exported by chilled brine import and chilled brine to secondary condenser and be passed through freezing salt
Water, gaseous phase materials are after second level gas-liquid separator carries out gas-liquid separation after condensing, and gaseous phase materials are from secondary gas phase material outlet stream
Out, into total gaseous phase materials import of Acetylene Gas Holder, the liquid phase material after the second-order separation is exported from second level liquid phase material to flow out；
3) enter fractional condensation reflux rectifying column from total liquid phase material import after the liquid phase material mixing in step 1) and step 2
Rectifying column in, by heat medium import and heat medium export, reflux freezing brine inlet and reflux freezing brine outlet respectively to essence
Evaporate tower tower bottom, tower top tower top part condensation reflux device in be passed through heating agent and chilled brine, to liquid phase mixture carry out rectifying, obtain
To gaseous phase materials from the condensation reflux device of tower top part total gaseous phase materials outlet outflow and secondary gas phase material outlet gas
Phase materials enter total gaseous phase materials import of Acetylene Gas Holder after converging, carry out acetylene deposit, export when needing from total gaseous phase materials
Outflow utilizes；Liquid phase is exported from liquid phase material to flow out, and recycles as recycling design.
The acetylene recovery process, it is characterised in that the heating agent in step 3) is hot water or steam.
The acetylene recovery process, it is characterised in that steam is saturated vapor, and temperature is 143.5 DEG C ~ 165 DEG C, pressure
For 0.3MPa ~ 0.6MPa.
The acetylene recovery process, it is characterised in that acetylene gaseous mixture to be recycled, including in acetylene and technical process
The solvent being evaporated.
The acetylene recovery process, which is characterized in that the solvent is acetone, ethyl acetate, ethyl alcohol, one in methanol
Kind is several.
By using above-mentioned technology, compared with prior art, the beneficial effects of the utility model are as follows:
The utility model is dissolved in for current acetylene moiety much commonly uses organic solvent, and acetylene tail gas not easy to handle time
The problem of receipts, organic solvent also hardly results in high-purity reuse, by using above-mentioned technology, by heat exchanger and gas-liquid separator collection
As level-one condensation separator, B-grade condensation separator, rectifying column and condensation reflux device are integrated into fractional condensation reflux rectifying column, and
Gas-liquid separation module is set by level-one condensation separator, B-grade condensation separator, fractional condensation reflux rectifying column；Acetylene Gas Holder is set
It is set to acetylene storage module, provides a kind of suitable for the recycling of acetylene in gas phase mixture, integration of equipments degree height, Neng Goumo
The acetylene recycle device of block；Acetylene tail gas to be recycled is condensed by level-one and gas-liquid separation, obtains rich in acetylene
Gas phase and liquid phase rich in organic solvent；Gas phase passes through B-grade condensation and gas-liquid separation, obtains the recycling acetylene of high-purity, is rich in
The liquid phase that the liquid phase of organic solvent is then condensed and separated with level-one is purified by fractional condensation reflux rectifying column, the utility model
It separates and recovers to obtain high-purity acetylene by condensation and gas-liquid using acetylene and the biggish feature of organic solvent boiling point difference, and ties
It closes rectifying column and recycling is further purified to the acetylene of dissolution in organic solvent, not only increase the rate of recovery of acetylene, while
The recycling organic solvent for obtaining high-purity, both saves raw material, reduces environmental pollution, only increases equipment throwing mostly
Money, equipment operation and venue cost, provide method for the recycling of the exhaust gas containing acetylene, and reduce and use acetylene as original
The exhaust emissions of the reaction process of material, reduces environmental pollution.
Detailed description of the invention
Fig. 1 is the structure drawing of device and process flow chart of the utility model.
In figure: in figure: 1- level-one condensation separator, 1a- first-stage condenser, 1b- level-one gas-liquid separator, 101- level-one gas
Phase materials import, 102- circulating water intake, 103- circulating water outlet, the outlet of 104- level-one gaseous phase materials, 105- level-one liquid phase object
Material outlet；2- B-grade condensation separator, 2a- secondary condenser, 2b- second level gas-liquid separator, 201- secondary gas phase material inlet,
202- second level chilled brine import, the outlet of 203- second level chilled brine, 204- secondary gas phase material outlet, 205- second level liquid phase object
Material outlet；3- fractional condensation reflux rectifying column, 3a- rectifying column, 3b- tower top part condensation reflux device, the total liquid phase material import of 301-,
302- Heating medium, the outlet of 303- heating agent, the total liquid phase material outlet 304-, 305- reflux freezing brine inlet, 306- returned cold
Freeze brine outlet, the outlet of 307- three-level gaseous phase materials；4- Acetylene Gas Holder；The total gaseous phase materials import of 401-, the total gaseous phase materials of 402-
Outlet, 403- water supplement port, 404- drain.
Specific embodiment
Below in conjunction with Figure of description, the utility model will be further described, but the protection scope of the utility model is simultaneously
It is not limited only to this:
As shown in Figure 1, a kind of integrated acetylene recycle device of the utility model, including by the one of process flow connection
Grade condensation separator 1, B-grade condensation separator 2, fractional condensation reflux rectifying column 3 and Acetylene Gas Holder 4, wherein level-one condensation separator 1,
B-grade condensation separator 2 and fractional condensation reflux rectifying column 3 are integrated into gas-liquid separation module, and the Acetylene Gas Holder 4 is that acetylene stores mould
Block:
The level-one condensation separator 1 is integrated with first-stage condenser 1a and level-one gas-liquid separator 1b, first-stage condenser 1a
It is equipped with level-one gaseous phase materials import 101, circulating water intake 102 and circulating water outlet 103, level-one gas-liquid separator 1b is equipped with
Level-one gaseous phase materials outlet 104 and level-one liquid phase material outlet 105；
The B-grade condensation separator 2 is integrated with secondary condenser 2a and second level gas-liquid separator 2b, secondary condenser 2a
It is equipped with secondary gas phase material inlet 201, second level chilled brine import 202 and second level chilled brine outlet 203, second level gas-liquid point
Secondary gas phase material outlet 204 and second level liquid phase material outlet 205, secondary gas phase material inlet 201 and one are equipped with from device 2b
Grade gaseous phase materials export 104 piping connections；
The fractional condensation reflux rectifying column 3 is integrated with rectifying column 3a and tower top part condensation reflux device 3b, sets on rectifying column 3a
There are total liquid phase material import 301, Heating medium 302 and heating agent outlet 303, total liquid phase material outlet 304, tower top part is condensed back to
It flows device 3b and is equipped with reflux freezing brine inlet 305, reflux freezing brine outlet 306 and three-level gaseous phase materials outlet 307, total liquid
Phase materials import 301 is connect with level-one liquid phase material outlet 105, second level liquid phase material outlet 205；
The Acetylene Gas Holder 4 be equipped with total gaseous phase materials import 401 and total gaseous phase materials outlet 402, total gaseous phase materials into
Mouth 401 is connect with secondary gas phase material outlet 204 and three-level gaseous phase materials outlet 307, will recycling through total gaseous phase materials outlet 402
Acetylene recycling.
In order to improve its safety in utilization, the utility model is equipped with drain 404 in Acetylene Gas Holder 4, simultaneously because second
Gas is sealed, and water has evaporation equal loss, timely moisturizing when needing using aqueous in order to keep pressure to stablize in alkynes gas holder 4, because
The utility model is additionally provided with water supplement port 403 in Acetylene Gas Holder 4.
Acetylene recovery process of the utility model based on integrated acetylene recycle device, includes the following steps:
1) acetylene gaseous mixture to be recycled enters the level-one of level-one condensation separator 1 by level-one gaseous phase materials import 101
Condenser 1a is passed through recirculated water, acetylene mixing into first-stage condenser 1a by circulating water intake 102 and circulating water outlet 103
Gas enters level-one gas-liquid separator 1b after condensing and carries out gas-liquid separation, and the gaseous phase materials after separation are exported from level-one gaseous phase materials
104 outflows；Liquid phase material is flowed out from level-one liquid phase material outlet 105；
2) separate after gaseous phase materials from level-one gaseous phase materials outlet 104 outflow after, through secondary gas phase material inlet 201 into
Enter in the secondary condenser 2a of B-grade condensation separator 2, exports 203 to second level by chilled brine import 202 and chilled brine
Condenser 2a is passed through chilled brine, and gaseous phase materials are after second level gas-liquid separator 2b carries out gas-liquid separation after condensing, gaseous phase materials
It is flowed out from secondary gas phase material outlet 204, the liquid phase object into total gaseous phase materials import 401 of Acetylene Gas Holder 4, after the second-order separation
Material is flowed out from second level liquid phase material outlet 205；
3) enter fractional condensation reflux rectifying from total liquid phase material import 301 after the liquid phase material mixing in step 1) and step 2
In the rectifying column 3a of tower 3, pass through Heating medium 302 and heating agent outlet 303, reflux freezing brine inlet 305 and reflux freezing salt
Water out 306 respectively to rectifying column 3a tower bottom, tower top tower top part condensation reflux device 3b in be passed through heating agent and chilled brine, it is right
Liquid phase mixture carries out rectifying, and obtained gaseous phase materials are exported from the three-level gaseous phase materials on the condensation reflux device 3b of tower top part
The gaseous phase materials of 307 outflows and secondary gas phase material outlet 204 enter total gaseous phase materials import of Acetylene Gas Holder 4 after converging
401, acetylene deposit is carried out, 402 outflow utilizes from the outlet of total gaseous phase materials when needing；Liquid phase is flowed out from liquid phase material outlet 304,
It is recycled as recycling design；Heating agent used be hot water or steam, and steam be saturated vapor, temperature be 143.5 DEG C ~
165 DEG C, pressure is 0.3MPa ~ 0.6MPa.
The utility model acetylene gaseous mixture to be recycled, including the solvent being evaporated in acetylene and technical process, solvent is
One or more of acetone, ethyl acetate, ethyl alcohol, methanol.
Embodiment 1
The acetylene tail gas for being mixed with ethyl acetate is recycled using the utility model, tail gas feed conditions: temperature
75 DEG C, pressure 7.255bara, mass flow: 180kg/h, mass fraction: acetylene 66.7%, ethyl acetate 30%, acetone 3.3%,
It in the embodiment, is condensed and separated using recirculated water level-one, is separated using -10 DEG C of chilled brine B-grade condensations, fractional condensation reflux rectifying
Tower tower bottom uses 0.6MPa saturated vapor heating agent, and about 165 DEG C of temperature, -10 DEG C of chilled brine refrigerants of tower top use, tower bottom operates temperature
130.8 DEG C, 1.5 DEG C of tower top operation temperature of degree；Finally recycling obtains acetylene recycling gas 122.36kg/h, and acetylene content 98% obtains
Ethyl acetate 57.64kg/h, ethyl acetate content 90.8%.The acetylene rate of recovery 99.93%, the ethyl acetate rate of recovery 96.92%.
Embodiment 2
The acetylene tail gas for being mixed with acetone is recycled using the utility model, tail gas feed conditions: 75 DEG C of temperature,
Pressure 7.26bara, mass flow: 180kg/h, mass fraction: acetylene 58%, acetone 42%；Using the condensation point of recirculated water level-one
From, it is separated using -10 DEG C of chilled brine B-grade condensations, segregates reflux rectifying tower bottom and use 0.3MPa saturated vapor heating agent, it is warm
About 143.5 DEG C of degree, -20 DEG C of chilled brine refrigerants of tower top use, 122.0 DEG C of tower bottom operation temperature, -5.7 DEG C of tower top operation temperature；
Finally recycling obtains acetylene recycling gas 106.42kg/h, and acetylene content 98.1% obtains acetone 73.58kg/h, content of acetone
99.96%.The acetylene rate of recovery 99.99%, the acetone rate of recovery 97.29%.
Embodiment 3
The acetylene tail gas for being mixed with ethyl alcohol is recycled using the utility model, tail gas feed conditions: 75 DEG C of temperature,
Pressure 7.235bara, mass flow: 180kg/h, mass fraction: acetylene 77.3%, ethyl alcohol 17.2%, acetone 5.5%；Using circulation
Water level-one condenses and separates, and is separated using -10 DEG C of chilled brine B-grade condensations, and fractional condensation reflux rectifying tower bottom is saturated using 0.4MPa
Steam heating agent, about 151.7 DEG C of temperature, -15 DEG C of chilled brine refrigerants of tower top use, 129.6 DEG C of tower bottom operation temperature, tower top operation
- 4.7 DEG C of temperature；Finally recycling obtains acetylene recycling gas 141.75kg/h, and acetylene content 98.1% obtains ethyl alcohol 38.25kg/h,
Ethanol content 79.4%.The acetylene rate of recovery 99.94%, ethanol recovery 98.10%.
The utility model by using above-mentioned technology, by heat exchanger and gas-liquid separator be integrated into level-one condensation separator,
Rectifying column and condensation reflux device are integrated into fractional condensation reflux rectifying column by B-grade condensation separator, and by level-one condensation separator, two
Grade condensation separator, fractional condensation reflux rectifying column are set as gas-liquid separation module；Acetylene storage module is set by Acetylene Gas Holder, is mentioned
Supplied a kind of suitable for the recycling of acetylene in gas phase mixture, integration of equipments degree is high, can modular acetylene recycle
Device.Acetylene tail gas to be recycled is condensed by level-one and gas-liquid separation, obtains the gas phase rich in acetylene and is rich in organic solvent
Liquid phase；Gas phase passes through B-grade condensation and gas-liquid separation, obtains the recycling acetylene of high-purity, the liquid phase rich in organic solvent then and
The liquid phase that level-one condenses and separates is purified by fractional condensation reflux rectifying column.Have since acetylene moiety is dissolved in many commonly use
Solvent, therefore the not easy to handle recycling of acetylene tail gas, organic solvent also hardly result in high-purity reuse.The utility model utilizes second
Alkynes and the biggish feature of organic solvent boiling point difference separate and recover to obtain high-purity acetylene by condensation and gas-liquid, and combine rectifying
Tower further purifies recycling to the acetylene of dissolution in organic solvent, not only increases the rate of recovery of acetylene, also obtains simultaneously
The recycling organic solvent of high-purity.Both raw material is saved, environmental pollution is reduced, only increases equipment investment, equipment mostly
Operation and venue cost.
The utility model solves the problems, such as follows by using above-mentioned technology: the life for now using acetylene as reaction raw materials
Production process, there are many acetylene wastage of material, and environmental pollution is very big.And the methods for being used for acetylene and recycling a small number of at present, only for specific
Reaction is not suitable for the gas phase mixture recycling containing acetylene not only, but also device degree of integration is not high, can not modularization.
At present use acetylene as raw material preparation react in, using the utility model can reach it is following the utility model has the advantages that
1) a kind of acetylene recovery device and technique suitable for the recycling of acetylene in gas phase mixture is provided, for exhaust gas containing acetylene
Recycling provide method；
2) provide a kind of degree of integration it is high, can modular acetylene recycle device, for the recycling of the exhaust gas containing acetylene
Using reducing costs；
3) recycling of acetylene in acetylene in gas phase mixture is realized, to use acetylene to save as the reaction process of raw material
Raw material；
4) exhaust emissions for reducing the reaction process for using acetylene as raw material, reduces environmental pollution.
Claims (3)
1. a kind of integrated acetylene recycle device, including level-one condensation separator (1), the B-grade condensation by process flow connection
Separator (2), fractional condensation reflux rectifying column (3) and Acetylene Gas Holder (4), it is characterised in that:
The level-one condensation separator (1) is integrated with first-stage condenser (1a) and level-one gas-liquid separator (1b), first-stage condenser
(1a) is equipped with level-one gaseous phase materials import (101), circulating water intake (102) and circulating water outlet (103), level-one gas-liquid separation
Device (1b) is equipped with level-one gaseous phase materials outlet (104) and level-one liquid phase material outlet (105)；
The B-grade condensation separator (2) is integrated with secondary condenser (2a) and second level gas-liquid separator (2b), secondary condenser
(2a) is equipped with secondary gas phase material inlet (201), second level chilled brine import (202) and second level chilled brine outlet (203),
Second level gas-liquid separator (2b) is equipped with secondary gas phase material outlet (204) and second level liquid phase material outlet (205), secondary gas phase
Material inlet (201) and level-one gaseous phase materials export (104) piping connection；
Fractional condensation reflux rectifying column (3) is integrated with rectifying column (3a) and tower top part condensation reflux device (3b), rectifying column (3a)
It is equipped with total liquid phase material import (301), Heating medium (302) and heating agent outlet (303), total liquid phase material outlet (304), tower
Top part condensation reflux device (3b) is equipped with reflux freezing brine inlet (305), reflux freezing brine outlet (306) and three-level gas
Phase materials export (307), and total liquid phase material import (301) and level-one liquid phase material outlet (105), second level liquid phase material export
(205) it connects；
The Acetylene Gas Holder (4) is equipped with total gaseous phase materials import (401) and total gaseous phase materials outlet (402), total gaseous phase materials
Import (401) is connect with secondary gas phase material outlet (204) and three-level gaseous phase materials outlet (307), is exported through total gaseous phase materials
It (402) will recycling acetylene recycling.
2. a kind of integrated acetylene recycle device according to claim 1, it is characterised in that Acetylene Gas Holder is also set on (4)
There are water supplement port (403) and drain (404).
3. a kind of integrated acetylene recycle device according to claim 1, it is characterised in that level-one condensation separator
(1), B-grade condensation separator (2) and fractional condensation reflux rectifying column (3) are integrated into gas-liquid separation module, and the Acetylene Gas Holder (4) is
Acetylene storage module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379151.6U CN208279528U (en) | 2018-03-20 | 2018-03-20 | A kind of integrated acetylene recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379151.6U CN208279528U (en) | 2018-03-20 | 2018-03-20 | A kind of integrated acetylene recycle device |
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| CN208279528U true CN208279528U (en) | 2018-12-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218658A (en) * | 2018-03-20 | 2018-06-29 | 浙江省天正设计工程有限公司 | A kind of integrated acetylene recycle device and recovery process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218658A (en) * | 2018-03-20 | 2018-06-29 | 浙江省天正设计工程有限公司 | A kind of integrated acetylene recycle device and recovery process |
| CN108218658B (en) * | 2018-03-20 | 2023-12-19 | 浙江省天正设计工程有限公司 | Integrated acetylene recycling device and process |
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