CN204281649U - Thioether synthesis system - Google Patents
Thioether synthesis system Download PDFInfo
- Publication number
- CN204281649U CN204281649U CN201420662592.9U CN201420662592U CN204281649U CN 204281649 U CN204281649 U CN 204281649U CN 201420662592 U CN201420662592 U CN 201420662592U CN 204281649 U CN204281649 U CN 204281649U
- Authority
- CN
- China
- Prior art keywords
- interchanger
- thioether
- hypomere
- shell
- synthetic tower
- 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.)
- Expired - Fee Related
Links
- 150000003568 thioethers Chemical class 0.000 title claims abstract description 48
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 9
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 9
- 239000007789 gas Substances 0.000 claims abstract description 37
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000008676 import Effects 0.000 claims abstract description 19
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 10
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 5
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000736911 Turritella communis Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- ZCILODAAHLISPY-UHFFFAOYSA-N biphenyl ether Natural products C1=C(CC=C)C(O)=CC(OC=2C(=CC(CC=C)=CC=2)O)=C1 ZCILODAAHLISPY-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to a kind of thioether synthesis system, technical scheme comprises the thioether synthetic tower be connected with feed gas heater, described feed gas heater top is provided with methanol inlet and hydrogen sulfide entrance, described feed gas heater comprises epimere interchanger and hypomere interchanger, the tube side of described epimere interchanger and the tube side of hypomere interchanger, the tube side of thioether synthetic tower being filled with catalyzer are connected successively, and the tube side outlet of described thioether synthetic tower is also connected with the shell side import of epimere interchanger; The shell-side outlet of described hypomere interchanger and the shell-side outlet of thioether synthetic tower are all connected with the import of separator, the pneumatic outlet of described separator is connected with the shell side import of hypomere interchanger, and the liquid exit of described separator is connected with the shell side import of thioether synthetic tower.The utility model structure is simple, it is easy to control, production cost is low, heat energy recycle is effective, heat transfer is even, and thioether building-up reactions is stable.
Description
Technical field
The utility model relates to chemical field, specifically a kind of thioether synthesis system.
Background technology
There are many dimethyl sulfoxide (DMSO) factories in China, generally all adopts first methyl alcohol and hydrogen sulfide to be carried out building-up reactions and obtain intermediates---dimethyl thioether, then by dimethyl thioether rectifying rear oxidation, thus obtain the finished product---the production method of dimethyl sulfoxide (DMSO).The building-up process of dimethyl thioether is a thermopositive reaction, and in order to make full use of this part heat, some producers adopt fused salt to be used as thermophore, this part heat is used, but because the viscosity of fused salt is large, poor fluidity, thus easily cause line clogging, cause producing instability.
On the other hand, fused salt heat exchange in thioether synthetic tower shell side is uneven, causes side reaction in thioether synthetic tower more, causes thioether content in synthetic gas on the low side.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, provide a kind of structure simple, control easy, production cost is low, heat energy recycle is effective, in thioether synthetic tower heat transfer evenly, the thioether synthesis system that thioether building-up reactions is stable.
Technical scheme comprises the thioether synthetic tower be connected with feed gas heater, described feed gas heater top is provided with methanol inlet and hydrogen sulfide entrance, it is characterized in that, described feed gas heater comprises epimere interchanger and hypomere interchanger, the tube side of described epimere interchanger and the tube side of hypomere interchanger, the tube side of thioether synthetic tower being filled with catalyzer are connected successively, and the tube side outlet of described thioether synthetic tower is also connected with the shell side import of epimere interchanger; The shell-side outlet of described hypomere interchanger and the shell-side outlet of thioether synthetic tower are all connected with the import of separator, the pneumatic outlet of described separator is connected with the shell side import of hypomere interchanger, and the liquid exit of described separator is connected with the shell side import of thioether synthetic tower.
The shell-side outlet of described hypomere interchanger is connected with the import of separator through medial launder.
Described medial launder is equipped with electricradiator.
For the technical problem existed in background technology, contriver is using road oil generation (mass percent is respectively the biphenyl of 26.5% and 73.5% and the mixture of Biphenyl Ether) as thermal barrier, utilize thioether synthesising reacting heat can make oil generation endothermic gasification, make the road oil generation gas after gasification for preheating material again, heat energy is well recycled, without the need to other power consumption.And road oil generation has, and viscosity is little, good fluidity, can not the advantage of blocking pipe, can the feature of uniform pickup thioether reactant heat, in thioether synthetic tower, evenly, thioether reactant is stablized, effectively reduce the generation of side reaction in heat transfer, improves thioether content in synthetic gas.
The utility model system is simple, heat utilization rate is high, production cost is low, administration measure, thioether synthetic tower bed temperature are stable, side reaction is few in thioether synthetic tower, synthetic gas thioether content is high, has wide market application foreground.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Wherein: 1-feed gas heater, 1.1-epimere interchanger, 1.2-hypomere interchanger, 1.3-methanol inlet, 1.4-hydrogen sulfide entrance, 2-thioether synthetic tower, 3-separator, 4-medial launder, 4.1-electricradiator.A-methyl alcohol, B-hydrogen sulfide, C-synthetic gas.
Embodiment
Below in conjunction with accompanying drawing, explanation is further explained to the utility model:
See Fig. 1, comprise feed gas heater 1 and thioether synthetic tower 2 (for heat exchange type fixed-bed reactor), described feed gas heater 1 top is provided with methanol inlet 1.3 and hydrogen sulfide entrance 1.4, described feed gas heater 1 comprises epimere interchanger 1.1 and the hypomere interchanger 1.2 of independent columns tubular type, the tube side of the tube side of described epimere interchanger 1.1 and the tube side of hypomere interchanger 1.2 and the thioether synthetic tower 2 that is filled with catalyzer is connected successively, and the tube side outlet of described thioether synthetic tower 2 is also connected with the shell side import of epimere interchanger 1.1; The shell-side outlet of described hypomere interchanger 1.2 is connected with the import of separator through medial launder, the shell-side outlet of described thioether synthetic tower 2 is also connected with the import of separator 3, the pneumatic outlet of described separator 3 is connected with the shell side import of hypomere interchanger 1.2, and the liquid exit of described separator 3 is connected with the shell side import of thioether synthetic tower 2.Described medial launder 4 being equipped with electricradiator 4.1, using for heating road oil generation as the driving initial stage or when occurring that reaction bed temperature is too low in producing.Above-mentioned connection connects by pipeline, and described pipeline can arrange valve, impeller pump etc. as required, and this is routine techniques, is not described further at this.
Working process:
Raw materials for production methyl alcohol A and hydrogen sulfide B is respectively through the tube side of methanol inlet 1.3 and hydrogen sulfide entrance 1.4 incoming stock air preheater 1 epimere interchanger 1.1, in this part heat transfer tube, complete the mixing of raw material, in advance thermal evaporation (methyl alcohol is gas by liquid gasification) form unstripped gas gas mixture, the tube side of unstripped gas gas mixture incoming stock air preheater 1 hypomere interchanger 1.2 together, in this part heat transfer tube, complete the preheating of unstripped gas, the gas temperature going out feed gas heater 1 reaches 300 ~ 350 DEG C.Unstripped gas gas mixture after preheating enters the tube side of thioether synthetic tower 2 subsequently, the synthesis of thioether is completed under the effect of catalyzer, complete the synthetic gas temperature after building-up reactions at 375 ~ 395 DEG C, this synthetic gas then shell side of incoming stock air preheater 1 epimere interchanger 1.1 and unstripped gas carries out heat exchange and is cooled to 300 ~ 350 DEG C, and the synthetic gas C after cooling goes subsequent handling to carry out refrigerated separation and namely obtains thick thioether (thioether content can reach more than 95%wt).
Road oil generation gasifies as gas phase (or partial gasification) after the shell side of thioether synthetic tower 2 heat transfer tube absorbs the reaction heat that methyl alcohol and hydrogen sulfide building-up reactions release, then separator 3 is entered, in separator 3 after gas-liquid separation, gaseous state road oil generation exports the shell side of incoming stock air preheater 1 hypomere interchanger 1.1 by separator 3 top gas, after unstripped gas gas mixture after the preliminary preheating of epimere interchanger 1.1 is preheating to 300 ~ 350 DEG C by gas road oil generation release of heat further, cooling liquefaction is for liquid, liquid road oil generation flows into medial launder 4 from the shell side of hypomere interchanger 1.2, the shell side entering thioether synthetic tower 2 through separator 3 more subsequently recycles.When the driving initial stage or when occurring that reaction bed temperature is too low in producing, enable the incidental electric heater 4.1 of medial launder 4 to heat oil generation, to ensure normally carrying out of production.
Claims (3)
1. a thioether synthesis system, comprise the thioether synthetic tower be connected with feed gas heater, described feed gas heater top is provided with methanol inlet and hydrogen sulfide entrance, it is characterized in that, described feed gas heater comprises epimere interchanger and hypomere interchanger, the tube side of described epimere interchanger and the tube side of hypomere interchanger, the tube side of thioether synthetic tower being filled with catalyzer are connected successively, and the tube side outlet of described thioether synthetic tower is also connected with the shell side import of epimere interchanger; The shell-side outlet of described hypomere interchanger and the shell-side outlet of thioether synthetic tower are all connected with the import of separator, the pneumatic outlet of described separator is connected with the shell side import of hypomere interchanger, and the liquid exit of described separator is connected with the shell side import of thioether synthetic tower.
2. thioether synthesis system as claimed in claim 1, it is characterized in that, the shell-side outlet of described hypomere interchanger is connected with the import of separator through medial launder.
3. thioether synthesis system as claimed in claim 1 or 2, is characterized in that, described medial launder is equipped with electricradiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662592.9U CN204281649U (en) | 2014-11-07 | 2014-11-07 | Thioether synthesis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662592.9U CN204281649U (en) | 2014-11-07 | 2014-11-07 | Thioether synthesis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204281649U true CN204281649U (en) | 2015-04-22 |
Family
ID=52864832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420662592.9U Expired - Fee Related CN204281649U (en) | 2014-11-07 | 2014-11-07 | Thioether synthesis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204281649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794362A (en) * | 2017-04-28 | 2018-11-13 | 中国石油化工股份有限公司 | A method of dimethyl sulfoxide (DMSO) is produced by hydrogen sulfide |
-
2014
- 2014-11-07 CN CN201420662592.9U patent/CN204281649U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794362A (en) * | 2017-04-28 | 2018-11-13 | 中国石油化工股份有限公司 | A method of dimethyl sulfoxide (DMSO) is produced by hydrogen sulfide |
| CN108794362B (en) * | 2017-04-28 | 2020-06-16 | 中国石油化工股份有限公司 | Method for producing dimethyl sulfoxide from hydrogen sulfide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |