CN103768824A - Acrolein waste gas treatment system - Google Patents
Acrolein waste gas treatment system Download PDFInfo
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- CN103768824A CN103768824A CN201210405524.XA CN201210405524A CN103768824A CN 103768824 A CN103768824 A CN 103768824A CN 201210405524 A CN201210405524 A CN 201210405524A CN 103768824 A CN103768824 A CN 103768824A
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- acrolein
- methacrylaldehyde
- treatment system
- exhaust treatment
- waste gas
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Abstract
The invention provides an acrolein waste gas treatment system. The system can effectively remove acrolein in waste gas at low energy consumption and a fast reaction speed. The system mainly comprises condensers, storage tanks, a batching tank, a reaction device, a filter and an activated carbon fiber adsorption device. The system mainly adopts a two-stage condensation system; acrolein waste gas is condensed into a liquid, then acrolein is introduced into a fixed bed reactor, and a prepared saturated sodium hypochlorite solution is introduced into the fixed bed reactor at the same time so as to allow sodium hypochlorite to oxidize acrolein; after complete reaction, a reaction solution is introduced into the activated carbon fiber adsorption device for adsorption of residual acrolein and acrolein oxidation products; when an adsorption tank becomes saturated after adsorption, high temperature water vapor is used for desorption; and desorbed organic waste liquid is individually treated. The system provided by the invention is simple to operate and can completely treat acrolein.
Description
[technical field]
The invention belongs to organic waste gas treatment equipment, specifically refer to and be specifically designed to the reaction unit of processing methacrylaldehyde waste gas.
[technical background]
Methacrylaldehyde is the cacodorous liquid of water white transparency under normal conditions, and its steam has very strong excitant and tearing property.Be synthetic intermediate very important in chemical industry, be widely used in production of resins and organic synthesis.Because methacrylaldehyde boiling point only has 52.5 ℃, there is very strong volatility, therefore in process of production, be easy to produce the waste water and the waste gas that contain methacrylaldehyde.Waste water and waste gas containing methacrylaldehyde can cause great harm to environment, people has drunk the waste water that is subject to methacrylaldehyde pollution or the air dizziness of having breathed methacrylaldehyde excessive concentration, headache, has felt sick, vomits, can cause oral cavity and gastric irritation or burn, even there will be shock, ephritis and heart failure, can be lethal.
Conventionally the removal method of traditional methacrylaldehyde mainly contains rectifying, flash distillation etc., but in methacrylaldehyde condensation removal process, easily cause the polymerization of methacrylaldehyde, thus cause the reduction of methacrylaldehyde clearance.In US patent NO.5760283, the method that absorbs methacrylaldehyde with highly basic or strong acid is disclosed, but methacrylaldehyde meeting polymerization in highly basic or strong acid, generate very unmanageable methacrylaldehyde polymer, the aromatic amine that added replacement before distillation is disclosed in US patent NO.6074532, aromatic amine and acrolein reaction can generate not alkali of west, but aromatic amine and west not alkali often can not react completely, and can increase greatly cost, Japan Patent NO.5360040 discloses spent ion exchange resin carrys out the method for adsorbs propylene aldehyde, the method can produce a large amount of regeneration liquid wastes, these regeneration liquid wastes are difficult to process equally, and organic matter meeting contaminated ion resin, its adsorption effect is declined greatly.
[summary of the invention]
The present invention is mainly immature for existing methacrylaldehyde treatment technology, and processing cost is high, inconvenient operation, removal effect are poor etc., and problem is designed and developed.
The present invention is to provide a kind of device that can effectively remove methacrylaldehyde in waste gas, this device mainly adopts B-grade condensation system, methacrylaldehyde waste gas is after one-level condensation, in gas, still can contain a small amount of methacrylaldehyde, now again waste gas is passed into B-grade condensation system, by the liquid that is condensed into of methacrylaldehyde maximum.
The oxidant using in this device is clorox, clorox is widely used in sterilization, the various aspects such as sterilization and bleaching, because it has stronger oxidisability, when methacrylaldehyde is passed into fixed bed reactors, in fixed bed reactors, pass in proportion the clorox saturated solution preparing, make methacrylaldehyde by hypochlorite oxidation.
On this reaction unit, one-level, B-grade condensation tank are equipped with drainer, to guarantee the liquid that is condensed into of methacrylaldehyde maximum.There is a water inlet at clorox material-compound tank top and adds clorox mouth, and impeller-agitator is equipped with in inside, and flow pump is equipped with in bottom, controls clorox addition.
The afterbody of this device is equipped with activated carbon fiber absorber, for adsorbing unreacted methacrylaldehyde and acrolein oxidation product, guarantees that waste water/waste gas after treatment reaches discharge standard.
The present invention has overcome the deficiency of the other technologies of report, provide a kind of can by methacrylaldehyde completely, removal device efficiently.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, the present invention is further described.
Figure below is embodiments of the invention flow chart.
1. one-level drainers in figure, 2. one-level basin, 3. B-grade condensation tank, 4. secondary basin, 5. material-compound tank, 6. reaction unit, 7. filter, 8. adsorption tanks 1,9. adsorption tanks 2.
[specific embodiment]
First methacrylaldehyde waste gas enter first-stage condenser 1 and be condensed into liquid through entering flue gas leading, the liquid that condensation is got off enters basin 2, now in first-stage condenser 1, still have that part propylene aldehyde waste gas is uncooled to get off, then enter secondary condenser 3, after condensed in two stages, the methacrylaldehyde overwhelming majority in waste gas is condensed, the methacrylaldehyde that condensation is got off pumps into absorption plant 6, in absorption plant, pump into the clorox saturated solution having prepared by clorox material-compound tank 5 simultaneously, in absorption plant, methacrylaldehyde can be by hypochlorite oxidation, methacrylaldehyde waste liquid after oxidation enters carbon fiber adsorption and catalytic combustion tank 8 through filter 7, after absorption, waste liquid can directly be discharged.8 and 9 is two carbon fiber adsorption and catalytic combustion tanks, uses in turn, adsorbs when saturated when one of them, is switched to another adsorption tanks and adsorbs, and saturated adsorption tanks is carried out to desorption simultaneously, and the organic liquid waste that desorption gets off is processed separately.
Claims (9)
1. methacrylaldehyde exhaust treatment system, is characterized in that mainly comprising condensing unit, basin, material-compound tank, reaction unit, six parts such as filter and adsorbent equipment.
2. methacrylaldehyde exhaust treatment system according to claim 1, is characterized in that condensing unit is B-grade condensation system, has two condensers.
3. methacrylaldehyde exhaust treatment system according to claim 1, is characterized in that material-compound tank is provided with turbine stirrer, is convenient to clorox to be made into saturated solution.
4. methacrylaldehyde exhaust treatment system according to claim 1, is equipped with flow pump at the bottom of tank, and flow pump is directly connected with reaction unit top, can directly clorox be pumped into reaction unit, is also convenient to control chemical feeding quantity.
5. methacrylaldehyde exhaust treatment system according to claim 1, is characterized in that basin has two, is connected respectively with two condensers.
6. methacrylaldehyde exhaust treatment system according to claim 2, is characterized in that on secondary condenser, and vacuum exhaust pipeline is housed.
7. methacrylaldehyde exhaust treatment system according to claim 1, is characterized in that having a clorox charge door and running water entrance at material-compound tank top.
8. methacrylaldehyde exhaust treatment system according to claim 1, is characterized in that being equipped with filter.
9. methacrylaldehyde exhaust treatment system according to claim 1, is characterized in that being equipped with activated carbon fiber absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405524.XA CN103768824A (en) | 2012-10-23 | 2012-10-23 | Acrolein waste gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405524.XA CN103768824A (en) | 2012-10-23 | 2012-10-23 | Acrolein waste gas treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103768824A true CN103768824A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210405524.XA Pending CN103768824A (en) | 2012-10-23 | 2012-10-23 | Acrolein waste gas treatment system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002022236A1 (en) * | 2000-09-12 | 2002-03-21 | General Electric Company | Process for removing methanol from waste gas |
| CN1903413A (en) * | 2005-07-27 | 2007-01-31 | 上海东化环境工程有限公司 | Process for treating waste-gas contg. acrylic acid |
| CN1973938A (en) * | 2006-12-04 | 2007-06-06 | 何金星 | Apparatus for recovering and purifying volatile organic compound from waste gas and its application |
| WO2010037441A1 (en) * | 2008-09-30 | 2010-04-08 | Lurgi Gmbh | Method and system for the production of methanol |
| CN102641654A (en) * | 2012-04-28 | 2012-08-22 | 重庆紫光天化蛋氨酸有限责任公司 | Method for processing malodorous gas and device thereof |
-
2012
- 2012-10-23 CN CN201210405524.XA patent/CN103768824A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002022236A1 (en) * | 2000-09-12 | 2002-03-21 | General Electric Company | Process for removing methanol from waste gas |
| CN1903413A (en) * | 2005-07-27 | 2007-01-31 | 上海东化环境工程有限公司 | Process for treating waste-gas contg. acrylic acid |
| CN1973938A (en) * | 2006-12-04 | 2007-06-06 | 何金星 | Apparatus for recovering and purifying volatile organic compound from waste gas and its application |
| WO2010037441A1 (en) * | 2008-09-30 | 2010-04-08 | Lurgi Gmbh | Method and system for the production of methanol |
| CN102171170A (en) * | 2008-09-30 | 2011-08-31 | 卢尔吉有限公司 | Method and system for the production of methanol |
| CN102641654A (en) * | 2012-04-28 | 2012-08-22 | 重庆紫光天化蛋氨酸有限责任公司 | Method for processing malodorous gas and device thereof |
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Addressee: BEIJING RIXINDANENG TECHNOLOGY CO., LTD. Document name: Notification of Patent Invention Entering into Substantive Examination Stage |
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Address after: The 102600 branch of the Beijing economic and Technological Development Zone fourteen Street No. 99 building 33 building C Room 301 Applicant after: BEIJING RIXINDANENG TECHNOLOGY CO., LTD. Address before: Aoyu No. 2 building, 102600 Beijing Jinyuan Daxing Industrial Development Zone Road 806 Applicant before: BEIJING RIXINDANENG TECHNOLOGY CO., LTD. |
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Application publication date: 20140507 |