CN1415401A - Method for recovering exhaust gas of multi-element organic solvent - Google Patents
Method for recovering exhaust gas of multi-element organic solvent Download PDFInfo
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- CN1415401A CN1415401A CN 02139241 CN02139241A CN1415401A CN 1415401 A CN1415401 A CN 1415401A CN 02139241 CN02139241 CN 02139241 CN 02139241 A CN02139241 A CN 02139241A CN 1415401 A CN1415401 A CN 1415401A
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Abstract
A process for treating waste gas of multi-element organic solvent and recovering organic solvent includes cooling the waste gas, feeding it in adsorbing cylinder, adsorbing the organic solvent by activated carbon fibre layer, desorbing the activated carbon fibre layer by water steam to recover organic solvent, and vacuum drying and cooling the adsorbing cylinder for further use. Its advantages are high effect and high safety.
Description
Technical field: the present invention relates to a kind of polynary organic solvent waste gas pollution control and treatment recovery method.
Prior art: the existing method that is used to administer waste gas, as the patent No. is that 01109295.5 application for a patent for invention discloses the invention of a kind of " gas recovery method and device thereof ", this method handling procedure is comparatively numerous and diverse, and the treating apparatus complex structure, thereby is difficult to promote.
Summary of the invention: the object of the present invention is to provide a kind of program simple, good purification, and the polynary easily organic solvent waste gas pollution control and treatment of handling safety recovery method, this method especially are fit to administer inflammable and explosive waste gas.
The invention is characterized in: this method is carried out according to the following steps: (1) will cool off pretreated waste gas and send into the adsorption tanks with turnover port, (2) by being arranged in the organic solvent of the acf layer absorption waste gas that adsorbs tank body, (3) with water vapour acf layer being carried out discharging behind the desorption tank body recycles, (4) again adsorption tanks are carried out the vacuum drying cooling, use for continuing.
The present invention one is because the employing acf layer adsorbs, so good purification; The 2nd, owing to adopt water vapour to carry out desorption, can under the state that does not need provision for disengagement, carry out desorption, handling safety is convenient; The 3rd, owing to adopt the vacuum drying cooling, especially be fit to administer inflammable and explosive waste gas.
Description of drawings: Fig. 1 is a kind of adsorption tanks organigram that the present invention uses,
Fig. 2 is the another kind of adsorption tanks organigram that the present invention uses.
The specific embodiment: the invention is characterized in: this method is carried out according to the following steps: (1) will cool off pretreated waste gas and send into the adsorption tanks with turnover port, (2) by being arranged in the organic solvent of the acf layer absorption waste gas that adsorbs tank body, (3) with water vapour acf layer being carried out discharging behind the desorption tank body recycles, (4) again adsorption tanks are carried out the vacuum drying cooling, use for continuing.
Above-mentioned absorption working condition temperature is 20～90 ℃, and pressure is 1000～5000Pa, and the time of staying is 0.1～1.2 second.
Above-mentioned vacuum drying is cooled off its vacuum degree control of operating mode at 250～750mmHg, time 5～15min.
Low-boiling point material in the above-mentioned pre-treatment step in the first filtering waste gas, and then carry out cooling processing.
The adsorption tanks that this method adopted are a kind of squirrel-cage adsorption tanks, be illustrated in figure 1 as a kind of adsorption tanks organigram that the present invention uses, it is characterized in that: comprise that the end, two ends offers the tank body of gas access way 1, be provided with tubular adsorption layer 2 in the tank body vertically, two zones about the isolation baffle plate 3 of this tubular adsorption layer by portion located therein is divided into its inner chamber, between tubular adsorption layer and tank body shell 4 inwalls, be provided with gas communication passage 5, this gas communication passage is by tubular adsorption layer outer wall, the tank body outer casing inner wall, and the shrouding of being located between tubular adsorption layer end and the tank body outer casing inner wall 6 surrounds the formation closed interval, be provided with towards the open-ended water vapour inlet pipe 7 of tubular adsorption layer at the tank body two ends, tank base is provided with discharges port 8, the tank body shell is provided with the vacuum pumping opening 9 that is connected with the gas communication passage, and above-mentioned tubular adsorption layer is an acf layer.
Be illustrated in figure 2 as the another kind of adsorption tanks organigram that the present invention uses, can parallelly be provided with two above tubular adsorption layers in the above-mentioned tank body, thereby can improve the operating efficiency of this device greatly.
The working procedure of this method is divided into absorption, desorption and three parts of vacuum drying cooling.
It at first is the absorption program, during work, earlier waste gas is carried out preliminary treatment, the low-boiling point material in the waste gas is filtered the back cooling, open the gas access way then (at this moment, with all the other port sealings), pretreated waste gas is sent into adsorption tanks from inlet channel, make the absorption working condition temperature keep 20～90 ℃, pressure is 1000～5000Pa, the time of staying is 0.1～1.2 second, adsorbs the organic solvent of waste gas by the acf layer that is arranged in the absorption tank body.After gas feeds from inlet channel, enter the air inlet zone of tubular adsorption layer inner chamber, pass the tubular adsorption layer then and enter the gas communication passage, gas passes the tubular adsorption layer by the gas communication passage again and turns in the zone of giving vent to anger that is positioned at tubular adsorption layer inner chamber another side afterwards, at last, cleaned gas is discharged from outlet passageway.Pass the tubular adsorption layer because gas is double when absorption, so adsorption efficiency improves greatly.
Then, after adsorption layer has adsorbed more organic matter, enter the desorption program, fetch boiling water steam inlet tube and discharge port, and seal all the other mouthfuls, feed water vapour, can make adsorbed organic matter desorption on the tubular adsorption layer, and recycle by discharging port discharge tank body.
At last, finish the desorption program after, open vacuum pumping opening, and seal all the other mouthfuls, make vacuum degree control at 250～750mmHg, carry out vacuum drying cooling, the time is 5～15min.Can remove moisture residual in the acf layer by the vacuum drying cooling, so that enter recycling of next round.
Adopt above-mentioned device improvement and recovery to contain polynary organic solvent waste gas, not only simple in structure, and good purification, handling safety is convenient.
The present invention can administer and reclaim the waste gas that contains polynary organic solvent effectively, and its application will help promoting the development of environmental protection cause greatly.
Claims (7)
1, a kind of polynary organic solvent waste gas pollution control and treatment recovery method, it is characterized in that: this method is carried out according to the following steps: (1) will cool off pretreated waste gas and send into the adsorption tanks with turnover port, (2) by being arranged in the organic solvent of the acf layer absorption waste gas that adsorbs tank body, (3) with water vapour acf layer being carried out discharging behind the desorption tank body recycles, (4) again adsorption tanks are carried out the vacuum drying cooling, use for continuing.
2, polynary organic solvent waste gas pollution control and treatment recovery method according to claim 1, it is characterized in that: described absorption working condition temperature is 20～90 ℃, and pressure is 1000～5000Pa, and the time of staying is 0.1～1.2 second.
3, polynary organic solvent waste gas pollution control and treatment recovery method according to claim 1 is characterized in that: described vacuum drying is cooled off its vacuum degree control of operating mode at 250～750mmHg, time 5～15min.
4, according to claim 1,2 or 3 described polynary organic solvent waste gas pollution control and treatment recovery methods, it is characterized in that: the low-boiling point material in the described pre-treatment step in the first filtering waste gas, and then carry out cooling processing.
5, according to claim 1,2 or 3 described polynary organic solvent waste gas pollution control and treatment recovery methods, it is characterized in that: the adsorption tanks that this method adopted are a kind of squirrel-cage adsorption tanks, it is characterized in that: comprise that the end, two ends offers the tank body of gas access way, be provided with the tubular adsorption layer in the tank body vertically, two zones about the isolation baffle plate of this tubular adsorption layer by portion located therein is divided into its inner chamber, between tubular adsorption layer and tank body outer casing inner wall, be provided with the gas communication passage, this gas communication passage is by tubular adsorption layer outer wall, the tank body outer casing inner wall, and the shrouding of being located between tubular adsorption layer end and the tank body outer casing inner wall surrounds the formation closed interval, be provided with towards the open-ended water vapour inlet pipe of tubular adsorption layer at the tank body two ends, tank base is provided with the discharge port, the tank body shell is provided with the vacuum pumping opening that is connected with the gas communication passage, and described tubular adsorption layer is an acf layer.
6, polynary organic solvent waste gas pollution control and treatment recovery method according to claim 4, it is characterized in that: the adsorption tanks that this method adopted are a kind of squirrel-cage adsorption tanks, it is characterized in that: comprise that the end, two ends offers the tank body of gas access way, be provided with the tubular adsorption layer in the tank body vertically, two zones about the isolation baffle plate of this tubular adsorption layer by portion located therein is divided into its inner chamber, between tubular adsorption layer and tank body outer casing inner wall, be provided with the gas communication passage, this gas communication passage is by tubular adsorption layer outer wall, the tank body outer casing inner wall, and the shrouding of being located between tubular adsorption layer end and the tank body outer casing inner wall surrounds the formation closed interval, be provided with towards the open-ended water vapour inlet pipe of tubular adsorption layer at the tank body two ends, tank base is provided with the discharge port, the tank body shell is provided with the vacuum pumping opening that is connected with the gas communication passage, and described tubular adsorption layer is an acf layer.
7, polynary organic solvent waste gas pollution control and treatment recovery method according to claim 6 is characterized in that: can parallelly be provided with two above tubular adsorption layers in the tank body of described squirrel-cage adsorption tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02139241 CN1415401A (en) | 2002-10-31 | 2002-10-31 | Method for recovering exhaust gas of multi-element organic solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02139241 CN1415401A (en) | 2002-10-31 | 2002-10-31 | Method for recovering exhaust gas of multi-element organic solvent |
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| CN1415401A true CN1415401A (en) | 2003-05-07 |
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| CN 02139241 Pending CN1415401A (en) | 2002-10-31 | 2002-10-31 | Method for recovering exhaust gas of multi-element organic solvent |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297336C (en) * | 2003-10-20 | 2007-01-31 | 中国石油化工股份有限公司 | Active carbon fiber device and method for adsorbing, recovering and treating organic waste gas |
| CN102266701A (en) * | 2011-03-23 | 2011-12-07 | 中国石油天然气股份有限公司 | Method for treating waste gas in chemical acrylamide production |
| CN104032521A (en) * | 2014-05-23 | 2014-09-10 | 江苏海大印染机械有限公司 | Steam sealing tank high-temperature steam recovery device |
| CN105013288A (en) * | 2015-06-23 | 2015-11-04 | 江苏中远环保科技有限公司 | Vacuum drying active carbon waste gas management process and vacuum drying active carbon waste gas management apparatus |
| CN107875807A (en) * | 2017-12-15 | 2018-04-06 | 江苏新聚环保技术有限公司 | A kind of carbon fiber adsorption and catalytic combustion desorption reclaimer negative pressure cooling method and system |
-
2002
- 2002-10-31 CN CN 02139241 patent/CN1415401A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297336C (en) * | 2003-10-20 | 2007-01-31 | 中国石油化工股份有限公司 | Active carbon fiber device and method for adsorbing, recovering and treating organic waste gas |
| CN102266701A (en) * | 2011-03-23 | 2011-12-07 | 中国石油天然气股份有限公司 | Method for treating waste gas in chemical acrylamide production |
| CN102266701B (en) * | 2011-03-23 | 2013-11-06 | 中国石油天然气股份有限公司 | Method for treating waste gas in chemical acrylamide production |
| CN104032521A (en) * | 2014-05-23 | 2014-09-10 | 江苏海大印染机械有限公司 | Steam sealing tank high-temperature steam recovery device |
| CN105013288A (en) * | 2015-06-23 | 2015-11-04 | 江苏中远环保科技有限公司 | Vacuum drying active carbon waste gas management process and vacuum drying active carbon waste gas management apparatus |
| CN107875807A (en) * | 2017-12-15 | 2018-04-06 | 江苏新聚环保技术有限公司 | A kind of carbon fiber adsorption and catalytic combustion desorption reclaimer negative pressure cooling method and system |
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