CN1919731A - Preparation method for carbon bisulfide - Google Patents
Preparation method for carbon bisulfide Download PDFInfo
- Publication number
- CN1919731A CN1919731A CN 200610127375 CN200610127375A CN1919731A CN 1919731 A CN1919731 A CN 1919731A CN 200610127375 CN200610127375 CN 200610127375 CN 200610127375 A CN200610127375 A CN 200610127375A CN 1919731 A CN1919731 A CN 1919731A
- Authority
- CN
- China
- Prior art keywords
- sulphur
- natural gas
- preparation
- dithiocarbonic anhydride
- sweet natural
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 58
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003345 natural gas Substances 0.000 claims abstract description 29
- 239000005864 Sulphur Substances 0.000 claims abstract description 28
- 230000003068 static effect Effects 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 235000009508 confectionery Nutrition 0.000 claims description 21
- 238000000034 method Methods 0.000 abstract description 14
- 238000002156 mixing Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 22
- 238000004939 coking Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 101710178035 Chorismate synthase 2 Proteins 0.000 description 1
- 101710152694 Cysteine synthase 2 Proteins 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- -1 tetracol phenixin Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a preparing method of carbon disulphide, which is characterized by the following: controlling the temperature of natural gas and sulphur at 550-800 deg.c at 0.3-1.0Mpa; reacting to produce carbon disulphide; blending natural gas and liquid sulphur in the heating segment of reacting furnace pipe through static blender.
Description
Technical field
The present invention relates to the preparation method of the compound of a kind of carbon containing and sulphur, be specially a kind of preparation method of dithiocarbonic anhydride.
Background technology
Dithiocarbonic anhydride is a kind of important chemical material, industrial purposes is widely arranged, and all is widely used in production departments such as regenerated fiber, glassine paper, agricultural chemicals, tetracol phenixin, rubber, refining of petroleum.Utilize in the process that the hydrocarbon polymer that exists in the Sweet natural gas and sulfur reaction prepare dithiocarbonic anhydride, different problems can appear, but the most frequent is process pipeline, tubular oven, the coking of adiabatic reactor, blockage problem, this is because existing preparation technology feeds Sweet natural gas and Molten sulphur respectively in the reacting by heating boiler tube, gas, the liquid two-phase separately flows, boiler tube top is gas, the bottom is a liquid, the easiest coking under this fluidised form, burnt layer mainly is that gas phase one side on boiler tube top forms, this is owing to gas phase one side is drained the interior film heat-transfer coefficient of the kinetic energy deficiency of coking material and gas phase than the little local cause that raises of pipe surface temperature that causes of liquid phase, and in the ideal preferably fluidised form be spray flow or annular-flow, gas-liquid mixed almost was constant speed and flowed this moment, so just helped conducting heat and carrying out that sulphur is vaporized.
Summary of the invention
The present invention causes the problem that the boiler tube lost of life, production cost increase and a kind of production method of dithiocarbonic anhydride is provided in order to solve in the existing process for preparation of CS 2 in the reaction boiler tube easily coking.
The present invention adopts following technical scheme to realize: the preparation method of dithiocarbonic anhydride, is that 550-800 ℃, pressure are to react under the 0.3-1.0Mpa to generate dithiocarbonic anhydride by Sweet natural gas and sulphur in temperature, enter heating zone in the reaction boiler tube through Sweet natural gas after the preheating and Molten sulphur after static mixer mixes, static mixer of the present invention is existing known products.Sweet natural gas after preheating and sulphur enter in the reaction boiler tube after mixing by static mixer again, can make mixture in Reaktionsofen, be fierce fluidized state, accelerate the vaporization of Molten sulphur, reduce coking in the boiler tube, prolong the life-span of boiler tube, saved facility investment.
It is outside or inner that static mixer of the present invention is arranged on Reaktionsofen, decides according to concrete production technique.
Reaktionsofen of the present invention is single transverse tube tubular oven, also can adopt other comb mode.
The excessive 5-15% of sulphur of the present invention reacts as far as possible and is converted into dithiocarbonic anhydride to guarantee Sweet natural gas.
Sweet natural gas of the present invention is preheating to 150-400 ℃, makes its preheating temperature be higher than the fusing point of sulphur, and sulphur very easily forms spray flow and is not solidified thereby guarantee both to mix afterwards.
Optimised process process of the present invention is as follows: the raw natural gas that the Sweet natural gas surge tank is sent here is after accurate metering, enter the tubular oven preheating section and be heated to 150-400 ℃, after mixing, static mixer enters tubular oven reacting by heating section with the sulphur of excessive 5-15% then, in temperature is 550-800 ℃, pressure is to carry out partial reaction under the 0.3-1.0Mpa, the process gas that goes out tubular oven reacting by heating section enters adiabatic reactor, unreacted gas sulphur and Sweet natural gas are proceeded reaction in adiabatic reactor, after reaction finished, the mixed gas (also claiming process gas) that adiabatic reactor is come out separated.
Compared with prior art, the reacting by heating section that the present invention sends in the tubular oven after Sweet natural gas and sulphur are mixed by static mixer is reacted, overcome or significantly reduced natural gas act process pipeline when producing dithiocarbonic anhydride, tubular oven, the easy coking of adiabatic reactor etc., easy blockage problem, make material gas in the tubular oven boiler tube, the liquid two-phase is not separately mobile but is fierce fluidized state (being spray flow substantially), accelerated the vaporization of Molten sulphur, reduced coking in the boiler tube, prolong the life-span of boiler tube, and reduced equipment maintenance cost, saved production cost.
Embodiment
Embodiment 1: static mixer is arranged on the tubular oven outside, the raw natural gas that the Sweet natural gas surge tank is sent here is after accurate metering, enter the tubular oven preheating section and be heated to 150 ℃, outside stove, after mixing, static mixer enters tubular oven reacting by heating section with excessive 5% sulphur then, in temperature is 550 ℃, pressure is to carry out partial reaction under the 0.3Mpa, after going out process furnace, the gas mixture that reaction generates enters adiabatic reactor, unreacted gas sulphur and Sweet natural gas are proceeded reaction in adiabatic reactor, the mixed gas that reaction after finishing is come out adiabatic reactor separates.
Embodiment 2: static mixer is arranged on tubular oven inside, the raw natural gas that the Sweet natural gas surge tank is sent here is after accurate metering, enter single transverse tube tubular oven preheating section and be heated to 400 ℃, in stove, after mixing, static mixer enters tubular oven reacting by heating section with excessive 15% sulphur then, in temperature is 800 ℃, pressure is to carry out partial reaction under the 1.0Mpa, after going out process furnace, the gas mixture that reaction generates enters adiabatic reactor, unreacted gas sulphur and Sweet natural gas are proceeded reaction in adiabatic reactor, after reaction finished, the mixed gas that adiabatic reactor is come out separated.
Embodiment 3: static mixer is arranged on tubular oven inside, the raw natural gas that the Sweet natural gas surge tank is sent here is after accurate metering, enter single transverse tube tubular oven preheating section and be heated to 300 ℃, in stove, after mixing, enter tubular oven reacting by heating section with excessive 10% sulphur then through static mixer, in temperature is 600 ℃, pressure is to carry out partial reaction under the 0.8Mpa, after going out process furnace, the gas mixture that reaction generates enters adiabatic reactor, unreacted gas sulphur and Sweet natural gas are proceeded reaction in adiabatic reactor, after reaction finished, the mixed gas that adiabatic reactor is come out separated.
Embodiment 4: static mixer is arranged on the tubular oven outside, the raw natural gas that the Sweet natural gas surge tank is sent here is after accurate metering, enter single transverse tube tubular oven preheating section and be heated to 200 ℃, outside stove, after mixing, static mixer enters tubular oven reacting by heating section with excessive 14% sulphur then, in temperature is 700 ℃, pressure is to carry out partial reaction under the 0.9Mpa, after going out process furnace, the gas mixture that reaction generates enters adiabatic reactor, unreacted gas sulphur and Sweet natural gas are proceeded reaction in adiabatic reactor, after reaction finished, the mixed gas that adiabatic reactor is come out separated.
Claims (6)
1, a kind of preparation method of dithiocarbonic anhydride, is that 550-800 ℃, pressure are to react under the 0.3-1.0Mpa to generate dithiocarbonic anhydride by Sweet natural gas and sulphur in temperature, it is characterized in that: enter heating zone in the Reaktionsofen through Sweet natural gas after the preheating and Molten sulphur after static mixer mixes.
2, the preparation method of dithiocarbonic anhydride according to claim 1, it is outside or inner to it is characterized in that described static mixer is arranged on Reaktionsofen.
3, the preparation method of dithiocarbonic anhydride according to claim 1 and 2 is characterized in that described Reaktionsofen is single transverse tube tubular oven.
4, the preparation method of dithiocarbonic anhydride according to claim 1 and 2 is characterized in that the excessive 5-15% of described sulphur.
5, the preparation method of dithiocarbonic anhydride according to claim 3 is characterized in that the excessive 8-12% of described sulphur.
6, the preparation method of dithiocarbonic anhydride according to claim 5 is characterized in that described Sweet natural gas is preheating to 150-400 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610127375XA CN100404415C (en) | 2006-09-18 | 2006-09-18 | Preparation method for carbon bisulfide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610127375XA CN100404415C (en) | 2006-09-18 | 2006-09-18 | Preparation method for carbon bisulfide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1919731A true CN1919731A (en) | 2007-02-28 |
| CN100404415C CN100404415C (en) | 2008-07-23 |
Family
ID=37777612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610127375XA Active CN100404415C (en) | 2006-09-18 | 2006-09-18 | Preparation method for carbon bisulfide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100404415C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003390A (en) * | 2014-06-16 | 2014-08-27 | 成都丽雅纤维股份有限公司 | Liquid sulfur feeding treating technology for preparing sulfide |
| CN105621413A (en) * | 2014-11-07 | 2016-06-01 | 王兴路 | Continuous preparation method of carbon disulfide |
| CN107673353A (en) * | 2017-10-10 | 2018-02-09 | 重庆兴发金冠化工有限公司 | A kind of raw material heating system and technique for producing carbon disulfide |
| CN108394902A (en) * | 2018-04-28 | 2018-08-14 | 孟涛 | A kind of carbon disulphide production system and method |
| CN110510612A (en) * | 2019-08-26 | 2019-11-29 | 浙江工业大学 | A kind of method for synthesizing carbon disulfide at low temperature |
| CN110562981A (en) * | 2019-08-26 | 2019-12-13 | 浙江工业大学 | Method for synthesizing carbon disulfide by mechanical ball milling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220626C (en) * | 2002-07-02 | 2005-09-28 | 辽阳瑞兴化工有限公司 | Production process of CS2 and H2S with mixed natural gas of methane and ethane |
-
2006
- 2006-09-18 CN CNB200610127375XA patent/CN100404415C/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003390A (en) * | 2014-06-16 | 2014-08-27 | 成都丽雅纤维股份有限公司 | Liquid sulfur feeding treating technology for preparing sulfide |
| CN104003390B (en) * | 2014-06-16 | 2016-07-06 | 成都丽雅纤维股份有限公司 | A kind of molten sulfur preparing sulfide feeds intake process technique |
| CN105621413A (en) * | 2014-11-07 | 2016-06-01 | 王兴路 | Continuous preparation method of carbon disulfide |
| CN105621413B (en) * | 2014-11-07 | 2018-11-27 | 王兴路 | A kind of continuous preparation method of carbon disulfide |
| CN107673353A (en) * | 2017-10-10 | 2018-02-09 | 重庆兴发金冠化工有限公司 | A kind of raw material heating system and technique for producing carbon disulfide |
| CN108394902A (en) * | 2018-04-28 | 2018-08-14 | 孟涛 | A kind of carbon disulphide production system and method |
| CN108394902B (en) * | 2018-04-28 | 2021-07-27 | 内蒙古翔泰环境科技有限公司 | A kind of carbon disulfide production system and method |
| CN110510612A (en) * | 2019-08-26 | 2019-11-29 | 浙江工业大学 | A kind of method for synthesizing carbon disulfide at low temperature |
| CN110562981A (en) * | 2019-08-26 | 2019-12-13 | 浙江工业大学 | Method for synthesizing carbon disulfide by mechanical ball milling |
| CN110510612B (en) * | 2019-08-26 | 2021-05-25 | 浙江工业大学 | Method for synthesizing carbon disulfide at low temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100404415C (en) | 2008-07-23 |
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Effective date of registration: 20090911 Address after: 200122, building 26, life insurance building, 707 Zhang Yang Road, Shanghai, Pudong New Area Co-patentee after: Kong Qingran Patentee after: Kong Qing ran Address before: 200120, building 26, life insurance building, 707 Zhang Yang Road, Shanghai, Pudong New Area Patentee before: Kong Qingran |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Xingfa Jinguan Chemical Co. Ltd. Assignor: Kong Qingran Contract record no.: 2011500000005 Denomination of invention: Preparation method for carbon bisulfide Granted publication date: 20080723 License type: Common License Open date: 20070228 Record date: 20110317 |
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Owner name: SHANGHAI BAIJIN CHEMICAL GROUP CO., LTD. Free format text: FORMER OWNER: KONG QINGRAN Effective date: 20110801 Free format text: FORMER OWNER: SHANGHAI BAIJIN CHEMICAL GROUP CO., LTD. |
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Address after: 200122 Pudong New Area Zhang Yang Road, No. 707 life insurance building, floor, Shanghai, 26 Patentee after: Shanghai golden chemical group Limited by Share Ltd Address before: 200122 Pudong New Area Zhang Yang Road, No. 707 life insurance building, floor, Shanghai, 26 Patentee before: Kong Qingran |