CN1935645A - Coarse carbon bisulfide rectifying equipment and method - Google Patents
Coarse carbon bisulfide rectifying equipment and method Download PDFInfo
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- CN1935645A CN1935645A CN 200610127379 CN200610127379A CN1935645A CN 1935645 A CN1935645 A CN 1935645A CN 200610127379 CN200610127379 CN 200610127379 CN 200610127379 A CN200610127379 A CN 200610127379A CN 1935645 A CN1935645 A CN 1935645A
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- dithiocarbonic anhydride
- removing tower
- condenser
- pipeline
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- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 title claims abstract description 159
- 238000000034 method Methods 0.000 title claims abstract description 29
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 42
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000007789 gas Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000009833 condensation Methods 0.000 claims abstract description 12
- 230000005494 condensation Effects 0.000 claims abstract description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 36
- 239000005864 Sulphur Substances 0.000 claims description 28
- 238000002156 mixing Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000000047 product Substances 0.000 claims description 15
- 239000012043 crude product Substances 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 10
- 241000282326 Felis catus Species 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- 239000011593 sulfur Substances 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 18
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 235000009508 confectionery Nutrition 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The invention relates to the rectifying technical field, concretely a coarse CS2 rectifying device and method, where the gas-liquid mixture of S, methane, sulfureted hydrogen and CS2 coming from a reactor and condensed by S condenser are rectified by rough removing tower, fine removing tower and finished product tower, i.e. three-tower continuous rectification. And it adopts a three-tower continuous rectifying mode, making the sulfureted hydrogen concentration reach 99.0-99.95%; after rectification, it pressurizes the uncondensed gas to continue condensation to recover CS2, and then feeds the recoverd CS2 into a Claus tail gas recovering system, avoiding environmental pollution and product waste caused by high-altitude exhaust of the uncondensed gas (or exhaust after burnt).
Description
Technical field
The present invention relates to the distillation technology field, be specially a kind of rectifying device and method of coarse carbon bisulfide.
Background technology
With Sweet natural gas and sulphur is that raw material production dithiocarbonic anhydride is the method that has been widely adopted, concrete reaction formation can have varied, such as high pressure catalysis form, low pressure non-catalytic form etc., in the actual production process, for Sweet natural gas can be transformed fully, no matter adopt the reaction of which kind of form, surpass the theoretical excessive sulphur that needs general usually the adding on proportioning raw materials, comprises dithiocarbonic anhydride that unreacted sulphur, Sweet natural gas and reaction produce, hydrogen sulfide etc. in the mixture that reaction generates.Wherein the content of hydrogen sulfide is approximately 40-48%, and the content of sulphur is approximately 3-10%, and the content of methane is approximately 0.5-3%.And this and these impurity can not adopt simple distillating method to remove, and in order to obtain the higher finished product dithiocarbonic anhydride of purity, all must adopt rectification method.The dithiocarbonic anhydride rectificating method mostly is double-tower type and tower two kinds of list greatly at present, and double-tower type rectifying is provided with profit reduction and reserving tower and rectifying tower, and (the also title thionizer and the rectifying tower that have), hydrogen sulfide separates removal respectively with sulphur in two towers; Single tower rectifying is profit reduction and reserving and rectifying two-phase to be operated to be combined in the tower carry out, thereby the technical process of rectifying and production operation are obviously simplified, but no matter be double-tower type or single tower, its defective is a hydrogen sulfide in the sepn process, the content of sulphur is wayward, separating effect is bad, the quality that obtains the dithiocarbonic anhydride finished product is also unstable, and be used for carrying out the refrigerative corollary system in the sepn process, traditional technology adopts recirculated water,-25 ℃ of (or-35 ℃) refrigerated water two cover systems cool off, cause hydrogen sulfide liquefaction easily, and hydrogen sulfide liquefaction back very easily forms hydrate when meeting minor amount of water, rapid blocking pipe, even cause and stop in emergency and accident that hydrogen sulfide leaks, simultaneously traditional technology adopts the flow process of advancing earlier tower behind gas-liquid separator separates sulphur again, has caused leaking of a spot of hydrogen sulfide and dithiocarbonic anhydride in the sulphur.
Summary of the invention
The present invention is wayward for the content that solves hydrogen sulfide, sulphur in the existing carbon disulphide manufacture process, the quality that obtains the dithiocarbonic anhydride finished product is also unstable, and hydrogen sulfide liquefaction back very easily forms problem such as hydrate and a kind of rectifying device and method of coarse carbon bisulfide preparation are provided when meeting minor amount of water.
The present invention adopts following technical scheme to realize: the rectifying device of coarse carbon bisulfide, comprise rough removing tower, fine removing tower and finishing column, rough removing tower is connected the back by the gas-liquid mixed pipe and links to each other with reactor with sulfur condenser, the rough removing tower cat head is connected with three condensers successively by pipeline, the condenser below is connected with liquid carbon disulphide output arm respectively, liquid carbon disulphide output arm is connected with mixing tank, mixing tank is connected with redistributor by pipeline, the rough removing tower middle part is connected with the dithiocarbonic anhydride output tube that communicates with redistributor, branch's device below is connected with fine removing tower by pipeline again, the fine removing tower cat head is connected with two condensers successively by pipeline, the condenser below is provided with the mixing tank that is attached thereto by pipeline, mixing tank is connected with the finishing column top by pipeline, the finishing column bottom is connected with finished product dithiocarbonic anhydride output tube, and the finishing column top is connected with two condensers successively by pipeline.
Utilize the rectifying device of above-mentioned said coarse carbon bisulfide to finish the rectificating method of coarse carbon bisulfide, come out and carry out the three-tower type continuous rectification by rough removing tower, fine removing tower and finishing column respectively from reactor through the condensed gas-liquid mixture of sulphur, methane, hydrogen sulfide and dithiocarbonic anhydride that comprises of sulfur condenser, realized gas-liquid mixture through sulphur, methane, hydrogen sulfide and the dithiocarbonic anhydride of system, the steady quality of the dithiocarbonic anhydride finished product behind refining separation circuit, dithiocarbonic anhydride content＜0.5% in isolated hydrogen sulfide, the methane blended gas.
Concrete technical process of the present invention is as follows: the opening for feed of the gas-liquid mixture that comprises sulphur, hydrogen sulfide and dithiocarbonic anhydride that reactor comes out (also claiming process gas) through the rough removing tower bottom enters, at feeding temperature is that 150-200 ℃, pressure are under the condition of 0.3-1.0Mpa, separate excessive sulphur and most hydrogen sulfide, will react the dithiocarbonic anhydride that generates simultaneously and be condensed into crude product; Coarse carbon bisulfide is that 48 ℃-55 ℃, tower top pressure are that normal pressure enters fine removing tower to the condition of 0.04Mpa in tower still temperature, the gas-liquid of dithiocarbonic anhydride crude product is carried out the counter current contact mass-and heat-transfer in tower, further separate dissolved sulphur and partial vulcanization hydrogen in the dithiocarbonic anhydride crude product in fine removing tower; The dithiocarbonic anhydride that is come out by fine removing tower enters finishing column, in tower still temperature is that 48 ℃-55 ℃, tower top pressure are that normal pressure is to the condition of 0.04Mpa, the gas-liquid of dithiocarbonic anhydride is carried out the counter current contact mass-and heat-transfer in tower, in finishing column, further separate dissolved hydrogen sulfide in the dithiocarbonic anhydride, can obtain the dithiocarbonic anhydride finished product.
Adopt recirculated water, 5 ℃ of water at low temperature and-35 ℃ of refrigerated waters or-25 ℃ of three cover systems in the rectifying of the present invention successively, wherein 5 ℃ of low temperature water systems are to utilize the byproduct steam in the carbon disulphide manufacture process to freeze, can save power consumption, and utilize 5 ℃ of water at low temperature to cool off, can make the hydrogen sulfide temperature be higher than its liquefaction temperature, prevent from very easily to form hydrate and the phenomenon of blocking pipe after the hydrogen sulfide liquefaction from technology.
Rough removing tower of the present invention, fine removing tower and finishing column are regular packed tower, and (also can adopt other filler under the identical situation of flow process) can increase the contact area of washing medium and mixture, thereby reach good separating effect.
Fine removing tower of the present invention and finishing column bottom are respectively equipped with reboiler, by heating the purity that can improve feed liquid repeatedly.
Low pressure of being discharged by fine removing tower and finishing column top of the present invention or atmospheric pressure vulcanization hydrogen and carbon disulfide gas mix the back and are forced into 0.1-0.5Mpa, continue condensation then and reclaim dithiocarbonic anhydride, tail gas is drained into the Claus tail gases recovery system, avoided high altitude discharge (or after calcination, discharging) and the environmental pollution that causes and product waste.
Compared with prior art, the present invention adopts three tower continuous rectification modes, realized the gas-liquid mixture through sulphur, hydrogen sulfide and the dithiocarbonic anhydride of system, the concentration of hydrogen sulfide behind refining separation circuit reaches 99.0-99.95%, is higher than the concentration of traditional technology 93.5-96.5% far away; And the quality of dithiocarbonic anhydride finished product is far superior to the index of national standard top grade product, and stably manufactured for a long time; The present invention simultaneously adopts is the technology that the gas-liquid mixture of sulphur, dithiocarbonic anhydride and hydrogen sulfide directly advances tower, and intrasystem sulphur fully-closed operation does not contact with the external world, has prevented a small amount of hydrogen sulfide that contains in the sulphur, the leakage of dithiocarbonic anhydride.And the non-condensable gas of the present invention after with normal pressure (or low pressure) rectifying (major part is a hydrogen sulfide, contain part dithiocarbonic anhydride), after being forced into 0.1-0.5Mpa, continue condensation recovery dithiocarbonic anhydride wherein, deliver to the Claus tail gases recovery system then, avoided this part non-condensable gas high altitude discharge (or after calcination, discharging) in the traditional process and the environmental pollution and the product waste that cause.
Description of drawings
Fig. 1 is the process flow sheet of rough removing tower of the present invention
Fig. 2 is the process flow sheet of fine removing tower of the present invention and finishing column
Among the figure: 1-rough removing tower 2-fine removing tower 3-finishing column 4-reboiler 5-gas-liquid mixed pipe 6-pipeline 7,8,9-condenser 10-liquid carbon disulphide output arm 11-mixing tank 12-pipeline 13-is branch's device 14-dithiocarbonic anhydride output tube 15 again, 16-pipeline 17,18-condenser 19-pipeline 20-mixing tank 21-pipeline 22-finished product dithiocarbonic anhydride output tube 23-pipeline 24,25-condenser 26-pipeline 27-pressurization 28-condenser 29-hydrogen sulfide output tube
Embodiment
The rectifying device of coarse carbon bisulfide, comprise rough removing tower 1, fine removing tower 2 and finishing column 3, rough removing tower 1 is connected the back by gas-liquid mixed pipe 5 and links to each other with reactor with sulfur condenser, rough removing tower 1 cat head by pipeline 6 successively with condenser 7,8,9 connect, condenser 7,8,9 belows are connected with liquid carbon disulphide output arm 10 respectively, liquid carbon disulphide output arm 10 is connected with mixing tank 11, mixing tank 11 is connected with redistributor 13 by pipeline 12, rough removing tower 1 middle part is connected with the dithiocarbonic anhydride output tube 14 that communicates with redistributor 13, branch's device 13 belows are connected with fine removing tower 2 by pipeline 15 again, fine removing tower 2 cats head by pipeline 16 successively with condenser 17,18 connect, condenser 17,18 belows are provided with the mixing tank 20 that is attached thereto by pipeline 19, mixing tank 20 is connected with finishing column 3 tops by pipeline 21, finishing column 3 bottoms are connected with finished product dithiocarbonic anhydride output tube 22, finishing column 3 tops by pipeline 23 successively with condenser 24,25 connect.Fine removing tower 2 and finishing column 3 bottoms are respectively equipped with reboiler 4, and condenser 18 is communicated with the back with condenser 25 by pipeline 26 and is connected with pressurizer 27, and pressurizer 27 passes through pipe connection with condenser 28, is connected with hydrogen sulfide output tube 29 on the condenser 28.
Utilize the rectifying device of above-mentioned said coarse carbon bisulfide to finish the rectificating method of coarse carbon bisulfide, come out and through the condensed sulphur that comprises of sulfur condenser from reactor, the gas-liquid mixture of hydrogen sulfide and dithiocarbonic anhydride is respectively by rough removing tower 1, fine removing tower 2 and finishing column 3 carry out the three-tower type continuous rectification, adopt recirculated water in the rectifying successively, 5 ℃ of water at low temperature and-35 ℃ or-25 ℃ of refrigerated water three cover systems cool off, rough removing tower 1, fine removing tower 2 and finishing column 3 are regular packed tower, fine removing tower 2 and finishing column 3 bottoms are reboiler 4 respectively, the hydrogen sulfide of being discharged by fine removing tower 2 and finishing column 3 tops and carbon disulfide gas mixes the back and pressurization drains into the Claus tail gases recovery system.
The best processing route is as follows: the process gas of being sent here by reactor is introduced into sulfur condenser, gas-liquid mixture is cooled off, simultaneously excessive unreacted sulphur is condensed into liquid-state sulfur, gas-liquid mixture enters through the opening for feed of gas-liquid mixed pipe 5 by rough removing tower 1 bottom then, at feeding temperature is 150-200 ℃, pressure is under the condition of 0.3-1.0Mpa, excess liq sulphur sinks and by draining into flash tank at the bottom of the tower, and the mixed gas of carrying a small amount of sulphur secretly rises and discharge through cat head, enter condenser 7 successively through pipeline 6,8, after 9 with the dithiocarbonic anhydride condensation, then by entering mixing tank 11 behind the liquid carbon disulphide output arm 10, enter redistributor 13 by pipeline 12 again, redistributor 13 feeds the condensed liquid carbon disulphide of a part and is used for cooling in the tower, wash residual sulphur, enter again in branch's device 13 by pipeline 14 through the dithiocarbonic anhydride crude product after the washing simultaneously, by pipeline 15 coarse carbon bisulfide is delivered to fine removing tower 2 then, isolated hydrogen sulfide (containing micro-responseless methane and a small amount of dithiocarbonic anhydride) send the Claus tail gases recovery system after then being sent to dithiocarbonic anhydride absorption recovery system (patented technology) recovery dithiocarbonic anhydride after decompression; The dithiocarbonic anhydride crude product that is come out by rough removing tower 1 enters fine removing tower 2 systems, separates the sulphur and the residue that are dissolved in the dithiocarbonic anhydride crude product in fine removing tower 2, separates the most of hydrogen sulfide that is dissolved in the dithiocarbonic anhydride crude product simultaneously.In tower still temperature is 48 ℃-55 ℃, tower top pressure is that normal pressure is to the condition of 0.04Mpa, the gas-liquid of dithiocarbonic anhydride crude product is carried out the counter current contact mass-and heat-transfer in tower, isolated remaining sulphur is discharged at the bottom of tower, dithiocarbonic anhydride and hydrogen sulfide are discharged and are passed through recirculated water through pipeline 16 from cat head, 5 ℃ of water at low temperature are cooled off indirectly with the dithiocarbonic anhydride condensation, enter mixing tank 20 by pipeline 19 after the condensation, the carbon disulfide gas of hydrogen sulfide that does not coagulate and trace enters and continues to cool off indirectly through-35 ℃ of (or-25 ℃) refrigerated waters after pressurizer 27 is pressurized to 0.1-0.5Mpa, dithiocarbonic anhydride is wherein reclaimed in condensation, remaining then hydrogen sulfide is delivered to the Claus tail gases recovery system through pipeline 29, the dithiocarbonic anhydride part of condensation is back to fine removing tower by mixing tank 20, and major part is delivered to finishing column 3 through pipeline 21 and separated once more; In tower still temperature is 48 ℃-55 ℃, tower top pressure is that normal pressure is to the condition of 0.04Mpa, the gas-liquid of dithiocarbonic anhydride is carried out the counter current contact mass-and heat-transfer in finishing column 3, separate the hydrogen sulfide of trace, qualified dithiocarbonic anhydride is discharged at the bottom of by tower, after cooling, can obtain finished product dithiocarbonic anhydride, dithiocarbonic anhydride and hydrogen sulfide that cat head is discharged pass through recirculated water, 5 ℃ of water at low temperature are cooled off indirectly with the dithiocarbonic anhydride condensation, the carbon disulfide gas of hydrogen sulfide that does not coagulate and trace continues to cool off indirectly through-35 ℃ of (or-25 ℃) refrigerated waters after pipeline 26 enters pressurizer 27 to be pressurized to 0.1-0.5Mpa, dithiocarbonic anhydride is wherein reclaimed in condensation, remaining then hydrogen sulfide is delivered to the Claus tail gases recovery system through pipeline 29, the dithiocarbonic anhydride part of condensation is back to fine removing tower, and major part is delivered to finishing column.
Claims (8)
1, a kind of rectifying device of coarse carbon bisulfide, it is characterized in that: comprise rough removing tower (1), fine removing tower (2) and finishing column (3), rough removing tower (1) is connected the back by gas-liquid mixed pipe (5) and links to each other with reactor with sulfur condenser, rough removing tower (1) cat head by pipeline (6) successively with condenser (7,8,9) connect, condenser (7,8,9) below is connected with liquid carbon disulphide output arm (10) respectively, liquid carbon disulphide output arm (10) is connected with mixing tank (11), mixing tank (11) is connected with redistributor (13) by pipeline (12), rough removing tower (1) middle part is connected with the dithiocarbonic anhydride output tube (14) that communicates with redistributor (13), branch's device (13) below is connected with fine removing tower (2) by pipeline (15) again, fine removing tower (2) cat head by pipeline (16) successively with condenser (17,18) connect, condenser (17,18) below is provided with the mixing tank (20) that is attached thereto by pipeline (19), mixing tank (20) is connected with finishing column (3) top by pipeline (21), finishing column (3) bottom is connected with finished product dithiocarbonic anhydride output tube (22), finishing column (3) top by pipeline (23) successively with condenser (24,25) connect.
2, the rectifying device of coarse carbon bisulfide according to claim 1 is characterized in that fine removing tower (2) and finishing column (3) bottom is respectively equipped with reboiler (4).
3, the rectifying device of coarse carbon bisulfide according to claim 1 and 2, it is characterized in that condenser (18) is communicated with the back with condenser (25) by pipeline (26) and is connected with pressurizer (27), pressurizer (27) passes through pipe connection with condenser (28), is connected with hydrogen sulfide output tube (29) on the condenser (28).
4, utilize the rectifying device of coarse carbon bisulfide as claimed in claim 1 to finish the rectificating method of coarse carbon bisulfide, it is characterized in that coming out and carrying out the three-tower type continuous rectification by rough removing tower (1), fine removing tower (2) and finishing column (3) respectively through the condensed gas-liquid mixture of sulphur, hydrogen sulfide and dithiocarbonic anhydride that comprises of sulfur condenser from reactor.
5, the rectificating method of dithiocarbonic anhydride according to claim 4, it is characterized in that described idiographic flow is as follows: gas-liquid mixture enters through the opening for feed of rough removing tower (1) bottom, at feeding temperature is that 150-200 ℃, pressure are under the condition of 0.3-1.0Mpa, separate excessive sulphur and most hydrogen sulfide, will react the dithiocarbonic anhydride that generates simultaneously and be condensed into crude product; Coarse carbon bisulfide is that 48 ℃-55 ℃, tower top pressure are that normal pressure enters fine removing tower (2) to the condition of 0.04Mpa in tower still temperature, the gas-liquid of dithiocarbonic anhydride crude product is carried out the counter current contact mass-and heat-transfer in tower, further separate dissolved sulphur and partial vulcanization hydrogen in the dithiocarbonic anhydride crude product in fine removing tower (2); The dithiocarbonic anhydride that is come out by fine removing tower (2) enters finishing column (3), in tower still temperature is that 48 ℃-55 ℃, tower top pressure are that normal pressure is to the condition of 0.04Mpa, the gas-liquid of dithiocarbonic anhydride is carried out the counter current contact mass-and heat-transfer in tower, in finishing column (3), further separate dissolved hydrogen sulfide in the dithiocarbonic anhydride, can obtain the dithiocarbonic anhydride finished product.
6, the rectificating method of dithiocarbonic anhydride according to claim 4 is characterized in that adopting successively in the rectifying recirculated water, 5 ℃ of water at low temperature and-35 ℃ or-25 ℃ of refrigerated water three cover systems to cool off.
7, the rectificating method of dithiocarbonic anhydride according to claim 4 is characterized in that rough removing tower (1), fine removing tower (2) and finishing column (3) are regular packed tower.
8, the rectificating method of dithiocarbonic anhydride according to claim 4, it is characterized in that low pressure or the atmospheric pressure vulcanization hydrogen and the carbon disulfide gas mixing back of discharging and be forced into 0.1-0.5Mpa by fine removing tower (2) and finishing column (3) top, continue condensation then and reclaim dithiocarbonic anhydride, tail gas is drained into the Claus tail gases recovery system.
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| CNB2006101273798A CN100447079C (en) | 2006-09-18 | 2006-09-18 | Coarse carbon bisulfide rectifying equipment and method |
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| CNB2006101273798A CN100447079C (en) | 2006-09-18 | 2006-09-18 | Coarse carbon bisulfide rectifying equipment and method |
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| CN1935645A true CN1935645A (en) | 2007-03-28 |
| CN100447079C CN100447079C (en) | 2008-12-31 |
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| CN102153053A (en) * | 2010-11-20 | 2011-08-17 | 辽宁瑞兴化工集团有限公司 | Methods for purifying and comprehensively utilizing hydrogen sulfide byproduct during production of carbon disulfide by methane method |
| CN104016344A (en) * | 2013-03-01 | 2014-09-03 | 辽宁瑞兴化工集团有限公司 | Method for avoiding forming hydrogen sulfide hydrate in carbon bisulfide production process |
| CN105080172A (en) * | 2015-06-25 | 2015-11-25 | 辽宁瑞兴化工集团有限公司 | Desulfurating rectifying tower for manufacturing carbon disulfide by virtue of high pressure non-catalytic natural gas method |
| CN105129799A (en) * | 2015-06-25 | 2015-12-09 | 辽宁瑞兴化工集团有限公司 | Refining purification of product carbon disulfide in methane-method carbon disulfide production process |
| CN107082427A (en) * | 2017-04-19 | 2017-08-22 | 苏州市兴鲁空分设备科技发展有限公司 | Carbon disulfide retracting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5899111A (en) * | 1981-12-04 | 1983-06-13 | Kuraray Chem Kk | Method and device for refining of carbon disulfide |
| CN1341548A (en) * | 2000-09-07 | 2002-03-27 | 付宇红 | Rectification technique of carbon bisulfide |
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| CN102153053B (en) * | 2010-11-20 | 2013-04-10 | 辽宁瑞兴化工集团有限公司 | Methods for purifying and comprehensively utilizing hydrogen sulfide byproduct during production of carbon disulfide by methane method |
| CN104016344A (en) * | 2013-03-01 | 2014-09-03 | 辽宁瑞兴化工集团有限公司 | Method for avoiding forming hydrogen sulfide hydrate in carbon bisulfide production process |
| CN104016344B (en) * | 2013-03-01 | 2016-02-10 | 辽宁瑞兴化工集团有限公司 | The method of hydrogen sulfide hydrate is avoided the formation of in a kind of carbon disulphide production process |
| CN105080172A (en) * | 2015-06-25 | 2015-11-25 | 辽宁瑞兴化工集团有限公司 | Desulfurating rectifying tower for manufacturing carbon disulfide by virtue of high pressure non-catalytic natural gas method |
| CN105129799A (en) * | 2015-06-25 | 2015-12-09 | 辽宁瑞兴化工集团有限公司 | Refining purification of product carbon disulfide in methane-method carbon disulfide production process |
| CN107082427A (en) * | 2017-04-19 | 2017-08-22 | 苏州市兴鲁空分设备科技发展有限公司 | Carbon disulfide retracting device |
| CN107158890A (en) * | 2017-05-05 | 2017-09-15 | 安徽宣城金宏化工有限公司 | It is a kind of to be used for the processing equipment of volatile organic matter in carbon disulphide production |
| CN110743189A (en) * | 2019-12-11 | 2020-02-04 | 贺源 | Energy-saving carbon disulfide rectification process |
| CN110743189B (en) * | 2019-12-11 | 2021-07-27 | 贺源 | Energy-saving carbon disulfide rectification process |
| CN112591750A (en) * | 2020-12-09 | 2021-04-02 | 吉林三源化工有限公司 | Carbon disulfide separation purification system |
| CN112591750B (en) * | 2020-12-09 | 2023-04-25 | 吉林三源化工有限公司 | Carbon disulfide separation and purification system |
| CN112456496A (en) * | 2020-12-31 | 2021-03-09 | 蔚林新材料科技股份有限公司 | Efficient recovery device and recovery method for carbon disulfide |
| CN115430260A (en) * | 2022-04-28 | 2022-12-06 | 宁夏紫光天化蛋氨酸有限责任公司 | Gas-liquid three-phase continuous separation equipment and method for removing carbon disulfide from hydrogen sulfide |
| CN115430260B (en) * | 2022-04-28 | 2023-09-26 | 宁夏紫光天化蛋氨酸有限责任公司 | Gas-liquid three-phase continuous separation equipment and method for removing carbon disulfide from hydrogen sulfide |
| CN114906848A (en) * | 2022-07-07 | 2022-08-16 | 李怀毅 | Equipment and method for preparing carbon disulfide by reaction of crude sulfur and semicoke |
| CN116281902A (en) * | 2022-11-28 | 2023-06-23 | 湖北吉星化工集团有限责任公司 | Preparation process and system of high-purity phosphorus pentasulfide |
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