CN204644236U - A kind of novel epoxy ethane production system - Google Patents
A kind of novel epoxy ethane production system Download PDFInfo
- Publication number
- CN204644236U CN204644236U CN201520263484.9U CN201520263484U CN204644236U CN 204644236 U CN204644236 U CN 204644236U CN 201520263484 U CN201520263484 U CN 201520263484U CN 204644236 U CN204644236 U CN 204644236U
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- CN
- China
- Prior art keywords
- reaction solution
- outlet
- methane
- washing tower
- gas
- 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.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 title claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 50
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 238000005406 washing Methods 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 239000013589 supplement Substances 0.000 claims abstract description 17
- 230000008676 import Effects 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000011070 membrane recovery Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Epoxy Compounds (AREA)
Abstract
A kind of novel epoxy ethane production system, belongs to technical field of chemical.It comprises reactor, compressor and washing tower, reactor upper/lower terminal arranges gas feed and reaction solution outlet, washing tower is arranged reaction solution import and pneumatic outlet, reaction solution outlet is connected with reaction solution import, the air outlet of compressor is connected with gas feed, inlet mouth is connected by pipeline with pneumatic outlet, this pipeline is arranged and causes steady flue, washing tower arranges the recycle system.The utility model is by adopting above-mentioned feature, washing tower arranges the recycle system, improve reaction solution washing intensity and purity, in addition, gas inlet duct increases methane and supplements pipe, replacing traditional nitrogen as causing steady gas with methane, first nitrogen being filled with, again with methane using after nitrogen replacement by methane as causing steady gas, substantially increase reaction efficiency, reduce costs, improve security and the operability of production system.
Description
Technical field
The utility model belongs to technical field of chemical, is specifically related to that a kind of reaction effect is good, the novel epoxy ethane production system of long service life, good stability.
Background technology
During ethylene oxide production, generally with ethene and oxygen for raw material, under the condition of silver catalyst, high temperature, high pressure, production high purity oxyethane and by product ethylene glycol, Diethylene Glycol and triethylene glycol.But the oxyethane after-treatment system instability that production system used is at present obtained, the oxyethane purity obtained is low, and the direct emptying of byproduct gas, affect environment, in addition, as causing steady gas, there is very large potential safety hazard in this production system nitrogen.
Utility model content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide that a kind of reaction effect is good, the novel epoxy ethane production system of long service life, good stability.
Described a kind of novel epoxy ethane production system, comprise reactor, compressor and washing tower, on described reactor, lower two ends arrange gas feed and reaction solution outlet, described washing tower is arranged reaction solution import and pneumatic outlet, pneumatic outlet is junctional membrane recovery system also, purifying treatment is carried out to gas, described reaction solution outlet is connected with reaction solution import, it is characterized in that the air outlet of described compressor is connected with gas feed, inlet mouth is connected by pipeline with pneumatic outlet, this pipeline is arranged and causes steady flue, washing tower arranges the recycle system.
Described a kind of novel epoxy ethane production system, it is characterized in that the described steady flue that causes comprises the supplementary pipe of nitrogen and the supplementary pipe of methane, described nitrogen supplements pipe and is arranged on nearly compressor one end, methane supplements pipe and is arranged on nearly pneumatic outlet one end, and the supplementary pipe of described nitrogen and methane supplement Guan Shangjun and arranges variable valve.
Described a kind of novel epoxy ethane production system, is characterized in that the described recycle system comprises liquor charging pipeline, and described liquor charging pipeline one end is connected with circulation liquid outlet, and the other end is connected with circulation fluid inlet.
Above-mentioned a kind of novel epoxy ethane production system, comprise reactor, compressor and washing tower, described reactor upper/lower terminal arranges gas feed and reaction solution outlet, described washing tower is arranged reaction solution import and pneumatic outlet, pneumatic outlet is junctional membrane recovery system also, purifying treatment is carried out to gas, described reaction solution outlet is connected with reaction solution import, the air outlet of compressor is connected with gas feed, inlet mouth is connected by pipeline with pneumatic outlet, this pipeline is arranged and causes steady flue, washing tower arranges the recycle system.The utility model is by adopting above-mentioned feature, washing tower arranges the recycle system, improve reaction solution washing intensity and purity, in addition, gas inlet duct increases methane and supplements pipe, replacing traditional nitrogen as causing steady gas with methane, first nitrogen being filled with, again with methane using after nitrogen replacement by methane as causing steady gas, substantially increase reaction efficiency, reduce costs, improve security and the operability of production system.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1-reactor, 2-reaction solution exports, and 3-nitrogen supplements pipe, 4-compressor, and 5-methane supplements pipe, 6-pneumatic outlet, 7-film recovery system, 8-circulation fluid inlet, 9-washing tower, 10-circulation liquid outlet, the import of 11-reaction solution, 12-gas feed.
Embodiment
Below in conjunction with Figure of description, the utility model will be further described, but protection domain of the present utility model is not limited in this:
As shown in Figure 1, novel epoxy ethane production system of the present utility model, for the preparation of oxyethane, this device with ethene and oxygen for raw material, under the condition of silver catalyst, high temperature, high pressure, use when production high purity oxyethane and by product ethylene glycol, Diethylene Glycol and triethylene glycol.It comprises reactor 1, compressor 4 and washing tower 9, on described reactor 1, lower two ends arrange gas feed 12 and reaction solution outlet 2, described washing tower 9 is arranged reaction solution import 11 and pneumatic outlet 6, pneumatic outlet 6 goes back junctional membrane recovery system 7, purifying treatment is carried out to gas, described reaction solution outlet 2 is connected with reaction solution import 11, the air outlet of compressor 4 is connected with gas feed 12, inlet mouth is connected by pipeline with pneumatic outlet 6, this pipeline is arranged and causes steady flue, washing tower 9 arranges the recycle system, this recycle system comprises liquor charging pipeline, described liquor charging pipeline one end is connected with circulation liquid outlet 10, the other end is connected with circulation fluid inlet 8, the reaction solution in washing tower 9 is made to keep circulation, improve washing effect.
As shown in the figure, described cause steady flue and comprise nitrogen and supplement pipe 3 and methane supplements pipe 5, described nitrogen supplements pipe 3 and is arranged on nearly compressor 4 one end, methane supplements pipe 5 and is arranged on nearly pneumatic outlet 6 one end, described nitrogen supplements pipe 3 and methane and supplements on pipe 5 and all arrange variable valve, the utility model substitutes nitrogen as causing steady gas by injecting methane in production oxyethane system, the supply of reactor inlet oxygen can be ensured, reduce the consumption of feed ethylene, further avoid nitrogen and cause easily steady and oxygen, ethene, the gases such as oxyethane form blast circulation gas, improve the production security of this device, pipe 5 is supplemented by increasing methane, catalyst selectivity can be made to improve 1%, reactor inlet oxygen concentration can reach 8.0mol%, reduce feed ethylene consumption, and can be that reaction temperature rising slows down, be conducive to extending catalyst work-ing life, increase the cost of investment of catalyzer, the safety and stability that better holdout device is produced.
The utility model methane supplements methane on pipe 5 by Sweet natural gas is introduced PSA(pressure-swing absorption apparatus), by foreign gas adsorbing and removing wherein, produce and meet ethylene oxide device production with causing steady gas index methane gas, boosted by compressor again, methane gas is injected in the middle of ethylene oxide production plant cycle gas system, simultaneously, one circulation gas is had to be discharged, recovered ethylene, discharge unnecessary nitrogen, operation like this, just can the normal production of holdout device until the steady nitrogen that causes in system is all replaced by methane.
Claims (3)
1. a novel epoxy ethane production system, comprise reactor (1), compressor (4) and washing tower (9), on described reactor (1), lower two ends arrange gas feed (12) and reaction solution outlet (2), described washing tower (9) is arranged reaction solution import (11) and pneumatic outlet (6), pneumatic outlet (6) goes back junctional membrane recovery system (7), purifying treatment is carried out to gas, described reaction solution outlet (2) is connected with reaction solution import (11), it is characterized in that the air outlet of described compressor (4) is connected with gas feed (12), inlet mouth is connected by pipeline with pneumatic outlet (6), this pipeline is arranged and causes steady flue, (9) arrange the recycle system to washing tower.
2. a kind of novel epoxy ethane production system according to claim 1, it is characterized in that the described steady flue that causes comprises the supplementary pipe (3) of nitrogen and the supplementary pipe (5) of methane, described nitrogen supplements pipe (3) and is arranged on nearly compressor (4) one end, methane supplements pipe (5) and is arranged on nearly pneumatic outlet (6) one end, and described nitrogen supplements on pipe (3) and the supplementary pipe (5) of methane and all arranges variable valve.
3. a kind of novel epoxy ethane production system according to claim 1, is characterized in that the described recycle system comprises liquor charging pipeline, and described liquor charging pipeline one end is connected with circulation liquid outlet (10), and the other end is connected with circulation fluid inlet (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520263484.9U CN204644236U (en) | 2015-04-28 | 2015-04-28 | A kind of novel epoxy ethane production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520263484.9U CN204644236U (en) | 2015-04-28 | 2015-04-28 | A kind of novel epoxy ethane production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204644236U true CN204644236U (en) | 2015-09-16 |
Family
ID=54096998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520263484.9U Expired - Fee Related CN204644236U (en) | 2015-04-28 | 2015-04-28 | A kind of novel epoxy ethane production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204644236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201487A (en) * | 2019-06-24 | 2019-09-06 | 浙江天采云集科技股份有限公司 | High-purity high-yield methane causes steady gas purification and reuse method in a kind of ethylene process epoxy ethane |
-
2015
- 2015-04-28 CN CN201520263484.9U patent/CN204644236U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201487A (en) * | 2019-06-24 | 2019-09-06 | 浙江天采云集科技股份有限公司 | High-purity high-yield methane causes steady gas purification and reuse method in a kind of ethylene process epoxy ethane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 |