CN103623674A - Absorbent absorbing gas containing epoxide - Google Patents
Absorbent absorbing gas containing epoxide Download PDFInfo
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- CN103623674A CN103623674A CN201310652837.XA CN201310652837A CN103623674A CN 103623674 A CN103623674 A CN 103623674A CN 201310652837 A CN201310652837 A CN 201310652837A CN 103623674 A CN103623674 A CN 103623674A
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- absorbent
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Abstract
The invention belongs to the field of chemical industry, and particularly discloses an absorbent absorbing gas containing epoxide. The absorbent is one or the mixture of ammonia water and alkylol amine. The absorbent has the benefits that ammonia water, monoethanolamine, diethanol amine, isopropanolamine, diisopropanolamine or a water solution of the monoethanolamine, diethanol amine and isopropanolamine, diisopropanolamine is used as the absorbent to absorb the gas containing epoxide, through the utilization of the characteristic that the ammonia water, the monoethanolamine, the diethanol amine, the isopropanolamine, the diisopropanolamine or the water solution is very easy to react with the epoxide to generate a compound with high boiling point and having less possibility of volatilization, the ammonia water, the monoethanolamine, the diethanol amine, the isopropanolamine, the diisopropanolamine or the water solution is used as the absorbent to absorb the gaseous epoxide, and a substance formed after absorption reaction can be used as a product or raw material, so that the resource is saved, and the absorptivity is larger than 98.5%.
Description
Technical field
The invention belongs to chemical field, the absorbent that more specifically a kind of absorption contains epoxides gas.
Background technology
At present, take oxirane, expoxy propane, be raw material, carry out in the production of the polymer such as polymerisation synthesizing polyether glycol, non-ionic surface active agent, some products approximately have the epoxides up to 1% can not be converted into product, cause waste.
Summary of the invention
Goal of the invention of the present invention is for above deficiency, and a kind of absorbent that absorbs epoxide gas is provided, and a kind of method of utilizing this absorbent to absorb epoxide gas is provided.
The present invention is achieved by the following technical solutions:
The absorbent that absorption contains epoxide gas, described absorbent is a kind of in ammoniacal liquor or hydramine or both mixing.
Above-mentioned hydramine is one or more or its aqueous solution in monoethanolamine, diethanol amine, monoisopropanolamine, diisopropanolamine (DIPA).
The mass concentration of above-mentioned ammoniacal liquor is 1%-35%.
Above-mentioned epoxides is oxirane, expoxy propane.
As another goal of the invention of the present invention, the absorption process of the absorbent that above-mentioned a kind of absorption contains epoxides gas, its technique is: the gas that contains epoxides is passed into absorption tower, it is 1-1000L/s that gas passes into speed, tourie and absorbent circulating pump are installed under absorption tower, cooling water coil is housed in tourie, interior logical cooling water is for lowering the temperature to absorbent, absorbent circulation delivery side of pump has cooler for absorbent is lowered the temperature, absorbent circulating pump is extracted absorbent out and is transported to top, absorption tower from tourie, spray into absorption tower, spray speed is 10-1200m
3/ h, the gas that contains epoxides is from bottom, absorption tower or/and tourie bottom enters process and absorbent contact mass transfer in tower, epoxides gas and absorbent fast reaction generate high boiling point organic compound, remaining gas upward to tower top, get rid of or enter the tower on next stage absorption tower at the bottom of carry out secondary absorption.
The freezing point of the temperature in above-mentioned absorption tower >=described absorbent ,≤80 ℃.
The freezing point of the temperature in above-mentioned tourie >=described absorbent ,≤80 ℃.
Above-mentioned absorption tower is one-level or absorption tower more than one-level.
The invention has the beneficial effects as follows: invention is used ammoniacal liquor or monoethanolamine, diethanol amine, monoisopropanolamine, diisopropanolamine (DIPA) or its aqueous solution to absorb and contain epoxides gas as absorbent, utilize them very easily to produce with epoxide reaction that boiling point is high, the feature of volatile compound not, the epoxides of these gaseous states will be absorbed as absorbent, the product forming after absorption reaction can be used as product or raw material is used, saved resource, its absorptivity is higher than 98.5%.
Accompanying drawing explanation
Fig. 1 is absorption process of the present invention auto levelizer structural representation used;
In figure: 1-absorption tower, 2-tourie, 3-absorbent circulating pump, 4-cooling water inlet, 5-cooling water coil, 6-coolant outlet, 7-gas access, 8-cooler.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, be described further, so that those skilled in the art can better understand the present invention, but therefore do not limit the present invention.
The gas that contains epoxides is passed into absorption tower, it is that tourie and absorbent circulating pump are installed under 300L/s absorption tower that gas passes into speed, absorbent in tourie is monoethanolamine, cooling water coil is housed in tourie, interior logical cooling water is for absorbent is lowered the temperature, and absorbent circulation delivery side of pump has cooler for absorbent is lowered the temperature, and absorbent circulating pump is extracted absorbent out and is transported to top, absorption tower from tourie, spray into absorption tower, spray speed is 310m
3/ h, the gas that contains 50% oxirane is from bottom, absorption tower or/and tourie bottom enters process and monoethanolamine contact mass transfer in tower, the raw triethanolamine of ethylene oxide gas and absorbent fast reaction, the remaining gas that contains 0.5% oxirane carries out secondary absorption discharge or enter the tower on next stage absorption tower upward to tower top at the bottom of, temperature in absorption tower, tourie is 20-80 ℃, and absorptivity is 99%.
The gas that contains epoxides is passed into absorption tower, it is that tourie and absorbent circulating pump are installed under 450L/s absorption tower that gas passes into speed, absorbent in tourie is the diethanol amine aqueous solution, cooling water coil is housed in tourie, interior logical cooling water is for absorbent is lowered the temperature, and absorbent circulation delivery side of pump has cooler for absorbent is lowered the temperature, and absorbent circulating pump is extracted absorbent out and is transported to top, absorption tower from tourie, spray into absorption tower, spray speed is 490m
3/ h, the gas that contains 20% expoxy propane from bottom, absorption tower or/and tourie bottom enter in tower through and absorbent contact mass transfer, expoxy propane gas and diethyl isopropanolamine hydramine, the remaining gas that contains 0.3% expoxy propane carries out secondary absorption discharge or enter the tower on next stage absorption tower upward to tower top at the bottom of, temperature in absorption tower, tourie is 20-80 ℃, and absorptivity is 98.5%.
The gas that contains epoxides is passed into absorption tower, it is 600L/s that gas passes into speed, tourie and absorbent circulating pump are installed under absorption tower, absorbent in tourie is diisopropanolamine (DIPA), and cooling water coil is housed in tourie, and interior logical cooling water is for lowering the temperature to absorbent, absorbent circulation delivery side of pump has cooler for absorbent is lowered the temperature, absorbent circulating pump is extracted absorbent to be transported to top, absorption tower out from tourie, sprays into absorption tower, and spray speed is 720m
3/ h, the gas that contains 80% oxirane is from bottom, absorption tower or/and tourie bottom enters process and absorbent contact mass transfer in tower, ethylene oxide gas reacts with diisopropanolamine (DIPA) and generates a second diisopropanolamine (DIPA), the remaining gas that contains 1% oxirane carries out secondary absorption discharge or enter the tower on next stage absorption tower upward to tower top at the bottom of, temperature in absorption tower, tourie is 10-80 ℃, and absorptivity is 98.75%.
The gas that contains epoxides is passed into absorption tower, it is 750L/s that gas passes into speed, tourie and absorbent circulating pump are installed under absorption tower, absorbent in tourie is triisopropanolamine, and cooling water coil is housed in tourie, and interior logical cooling water is for lowering the temperature to absorbent, absorbent circulation delivery side of pump has cooler for absorbent is lowered the temperature, absorbent circulating pump is extracted absorbent to be transported to top, absorption tower out from tourie, sprays into absorption tower, and spray speed is 910m
3/ h, concentration is 1000g/m
3the gas of expoxy propane from bottom, absorption tower or/and tourie bottom enter in tower through and absorbent contact mass transfer, expoxy propane gas react generation triisopropanolamine with triisopropanolamine, the concentration of remainder is 12.5g/m
3the gas of expoxy propane carry out secondary absorption discharge or enter the tower on next stage absorption tower upward to tower top at the bottom of, the temperature in absorption tower, tourie is 10-80 ℃, absorptivity is 98.75%.
The gas that contains epoxides is passed into absorption tower, it is 1000L/s that gas passes into speed, tourie and absorbent circulating pump are installed under absorption tower, absorbent in tourie is that mass concentration is the aqueous solution of 10% ammonia, cooling water coil is housed in tourie, interior logical cooling water is for lowering the temperature to absorbent, absorbent circulation delivery side of pump has cooler for absorbent is lowered the temperature, absorbent circulating pump is extracted absorbent out and is transported to top, absorption tower from tourie, spray into absorption tower, spray speed is 1200m
3/ h, concentration is 1200g/m
3the gas of oxirane from bottom, absorption tower or/and tourie bottom enter in tower through and absorbent contact mass transfer, ethylene oxide gas react with ammoniacal liquor and generates monoethanolamine, diethanol amine, triethanolamine etc., concentration is 15g/m
3the gas of oxirane carries out secondary absorption discharge or enter the tower on next stage absorption tower upward to tower top at the bottom of, and the temperature in absorption tower, tourie is 10-80 ℃, and absorptivity is 98.75%.
Claims (8)
1. the absorbent that absorption contains epoxide gas, is characterized in that: described absorbent is a kind of in ammoniacal liquor or hydramine or both mixing.
2. the absorbent that a kind of absorption according to claim 1 contains epoxide gas, is characterized in that: described hydramine is one or more or its aqueous solution in monoethanolamine, diethanol amine, monoisopropanolamine, diisopropanolamine (DIPA).
3. the absorbent that a kind of absorption according to claim 1 contains epoxide gas, is characterized in that: the mass concentration of described ammoniacal liquor is 1%-35%.
4. the absorbent that a kind of absorption according to claim 1 contains epoxide gas, is characterized in that: described epoxides is oxirane, expoxy propane.
5. the absorption process of the absorbent that a kind of absorption contains epoxides gas according to claim 1, its technique is: the gas that contains epoxides is passed into absorption tower, it is 1-1000L/s that gas passes into speed, tourie and absorbent circulating pump are installed under absorption tower, cooling water coil is housed in tourie, interior logical cooling water is for lowering the temperature to absorbent, absorbent circulation delivery side of pump has cooler for absorbent is lowered the temperature, absorbent circulating pump is extracted absorbent out and is transported to top, absorption tower from tourie, spray into absorption tower, spray speed is 10-1200m
3/ h, the gas that contains epoxides is from bottom, absorption tower or/and tourie bottom enters process and absorbent contact mass transfer in tower, epoxides gas and absorbent fast reaction generate high boiling point organic compound, remaining gas upward to tower top, get rid of or enter the tower on next stage absorption tower at the bottom of carry out secondary absorption.
6. the method that a kind of absorption according to claim 5 contains epoxide gas, is characterized in that: the freezing point of the temperature in described absorption tower >=described absorbent ,≤80 ℃.
7. the method that a kind of absorption according to claim 5 contains epoxide gas, is characterized in that: the freezing point of the temperature in described tourie >=described absorbent ,≤80 ℃.
8. the method that a kind of absorption according to claim 5 contains epoxide gas, is characterized in that: described absorption tower is one-level or absorption tower more than one-level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310652837.XA CN103623674A (en) | 2013-12-06 | 2013-12-06 | Absorbent absorbing gas containing epoxide |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310652837.XA CN103623674A (en) | 2013-12-06 | 2013-12-06 | Absorbent absorbing gas containing epoxide |
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| CN103623674A true CN103623674A (en) | 2014-03-12 |
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| CN201310652837.XA Pending CN103623674A (en) | 2013-12-06 | 2013-12-06 | Absorbent absorbing gas containing epoxide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141931A (en) * | 2019-06-14 | 2019-08-20 | 南京力恒工程科技有限公司 | A kind for the treatment of process of the organic exhaust gas containing propylene oxide |
| CN114832586A (en) * | 2022-05-20 | 2022-08-02 | 云南杰地建设工程有限公司 | Process for treating production waste gas of natural rubber factory |
Citations (4)
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|---|---|---|---|---|
| JP2005052685A (en) * | 2003-06-16 | 2005-03-03 | 英正 ▲鶴▼田 | Method for recovering water-soluble voc and halogenated voc coexisting in gas |
| CN101100433A (en) * | 2007-07-25 | 2008-01-09 | 辽宁华丰化工（集团）有限公司 | Method for producing pure triethanolamine containing micro-water |
| CN101613289A (en) * | 2009-05-12 | 2009-12-30 | 嘉兴金燕化工有限公司 | The abbreviated system that thanomin is produced |
| CN203155059U (en) * | 2013-04-04 | 2013-08-28 | 胜利油田中胜环保有限公司 | Tail gas absorption device in petroleum sulfonate production |
-
2013
- 2013-12-06 CN CN201310652837.XA patent/CN103623674A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005052685A (en) * | 2003-06-16 | 2005-03-03 | 英正 ▲鶴▼田 | Method for recovering water-soluble voc and halogenated voc coexisting in gas |
| CN101100433A (en) * | 2007-07-25 | 2008-01-09 | 辽宁华丰化工（集团）有限公司 | Method for producing pure triethanolamine containing micro-water |
| CN101613289A (en) * | 2009-05-12 | 2009-12-30 | 嘉兴金燕化工有限公司 | The abbreviated system that thanomin is produced |
| CN203155059U (en) * | 2013-04-04 | 2013-08-28 | 胜利油田中胜环保有限公司 | Tail gas absorption device in petroleum sulfonate production |
Non-Patent Citations (1)
| Title |
|---|
| 魏文德: "《有机化工原料大全 中卷》", 31 January 1999, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141931A (en) * | 2019-06-14 | 2019-08-20 | 南京力恒工程科技有限公司 | A kind for the treatment of process of the organic exhaust gas containing propylene oxide |
| CN114832586A (en) * | 2022-05-20 | 2022-08-02 | 云南杰地建设工程有限公司 | Process for treating production waste gas of natural rubber factory |
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Application publication date: 20140312 |
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