CN104096469A - Complete purifying method for chemical industry waste gas - Google Patents
Complete purifying method for chemical industry waste gas Download PDFInfo
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- CN104096469A CN104096469A CN201410353382.6A CN201410353382A CN104096469A CN 104096469 A CN104096469 A CN 104096469A CN 201410353382 A CN201410353382 A CN 201410353382A CN 104096469 A CN104096469 A CN 104096469A
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Abstract
The invention relates to a complete purifying method for chemical industry waste gas and relates to the technical field of industrial waste gas purification. The complete purifying method is characterized in that the chemical industry waste gas is subjected to acid removing reaction in water and processed by a monox drying agent, is further subjected to adsorbent purification with an activated carbon adsorbent, and finally is discharged through combustion; after the acid removing reaction, the drying agent process and the absorbent purification process, 60-70% of waste gas can be removed; in addition, the reaction is conducted in water with the water as a water seal, so that safety assurance can be increased, the rest about 30% of the waste gas can be removed through combustion, and finally the emitted gas conforms to the comprehensive emission standard of air pollutants. According to the invention, the purifying effect can reach 98%; the complete purifying method is a safer and more advanced method which aims to remove waste gas which consists of carbon, hydrogen and oxygen; the technological process is practical and feasible, the processing effect is stable and reliable, the overall distribution is based on the concrete situations, the operational management is convenient, and the investment cost is economical and reasonable.
Description
Technical field
The present invention relates to the purification techniques field of industrial production waste gas.
Background technology
Along with the carrying out of the large production of chemical engineering industryization, produce in the waste gas discharging and contain the multiple poisonous gas that has peculiar smell, mainly contain nylon acid, alkyd, phthalic anhydride class, aldehydes etc.Isobutylaldehyde, phthalic anhydride, nylon acid and so on be insoluble in water, but burning produces CO and CO
2.
The existing method generally adopting is absorption method, mostly adopts active carbon directly to adsorb the gas of discharging.But in these special gases, by friction is easily on fire for a long time, the consequence causing is very serious with active carbon.And active carbon using the adsorption effect maximum at initial stage can reach 90%, but after one not long period, the adsorption effect of active carbon is down to less than 50%, and need to change frequently.The charcoal absorption changing a large amount of waste gas, give up to process as danger, processing cost is larger.Therefore this direct absorption method is to making the equipment volume of active carbon huge, and heaviness, has also caused operating cost high.
The existing catalysis process that adopts in addition, but its cost is also high, also will further process the product after processing, and can be absorbed in the circulation of processing and going.
Summary of the invention
The present invention seeks to propose to overcome a kind of convenience of above prior art defect, the complete purification method of chemical emission cheaply.
Technical solution of the present invention is: by chemical emission first through after water body depickling reaction, then by silicon oxide drier processed, and then by the further adsorption cleaning of acticarbon, finally by burning and exhausting.
After water body depickling reaction, desiccant dehydration processing and adsorption cleaning, can remove 60～70% waste gas by adsorption cleaning, in the time of simultaneously through water body, be also using water body as water seal, strengthen safety guarantee, after processing, still have the waste gas of part 30% left and right further to remove after burning, the gas finally discharging meets < < discharge standard of air pollutants > >.The inventive method clean-up effect is up to 98%, for formed the waste gas of structure by hydrocarbon oxygen, be a kind of more advanced method of relatively safety, technological process practical, treatment effect are reliable and stable, total arrangement is suited measures to local conditions, operational management is convenient, the economical rationality of investment operating cost.
The specific embodiment
Technological process: gas sampling, depickling, dehydration, absorption, burning, discharge.
Treatment facility is for adopting the special purifying column forming of anticorrosion acid resisting material.
Chemical emission is after roots blower is collected, through pipeline, send into water seal one end of purifying column bottom, after the depickling of purifying column bottom water is processed, moisture mist is upwards dry as desiccant dehydration through being filled with silica in purifying column, waste gas upwards enters after the abundant adsorption cleaning of acticarbon layer again, finally send into combustion chamber, gas is all by safety dumping after high-temp combustion.
Burner in combustion chamber can adopt electrical heating gas self-burning type, or selects import automatic gas burner.
Claims (3)
1. a kind of complete purification method of chemical emission, is characterized in that: by chemical emission first after water body depickling reaction, then by silicon oxide drier processed, and then by the further adsorption cleaning of acticarbon, finally by burning and exhausting.
2. method according to claim 1, is characterized in that: described chemical emission is the gas that contains in nylon acid, alkyd, phthalic anhydride class, aldehydes at least one.
3. method according to claim 1, is characterized in that: after described chemical emission is collected by roots blower, carry out depickling reaction in pipeline is sent into water body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353382.6A CN104096469A (en) | 2014-07-24 | 2014-07-24 | Complete purifying method for chemical industry waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353382.6A CN104096469A (en) | 2014-07-24 | 2014-07-24 | Complete purifying method for chemical industry waste gas |
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| Publication Number | Publication Date |
|---|---|
| CN104096469A true CN104096469A (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410353382.6A Pending CN104096469A (en) | 2014-07-24 | 2014-07-24 | Complete purifying method for chemical industry waste gas |
Country Status (1)
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| CN (1) | CN104096469A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1739849A (en) * | 2004-08-23 | 2006-03-01 | 爱迪亚科技股份有限公司 | Acid gas adsorbing detergent |
| CN102068890A (en) * | 2010-12-24 | 2011-05-25 | 环境保护部华南环境科学研究所 | Method and device for treating complex industrial organic waste gas |
| CN102908884A (en) * | 2011-08-01 | 2013-02-06 | 中国石油化工股份有限公司 | Method for purifying waste gas from production of purified terephthalic acid |
| CN204093277U (en) * | 2014-07-03 | 2015-01-14 | 常州大恒环保科技有限公司 | Trimethylamine waste gas pollution control and treatment system |
-
2014
- 2014-07-24 CN CN201410353382.6A patent/CN104096469A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1739849A (en) * | 2004-08-23 | 2006-03-01 | 爱迪亚科技股份有限公司 | Acid gas adsorbing detergent |
| CN102068890A (en) * | 2010-12-24 | 2011-05-25 | 环境保护部华南环境科学研究所 | Method and device for treating complex industrial organic waste gas |
| CN102908884A (en) * | 2011-08-01 | 2013-02-06 | 中国石油化工股份有限公司 | Method for purifying waste gas from production of purified terephthalic acid |
| CN204093277U (en) * | 2014-07-03 | 2015-01-14 | 常州大恒环保科技有限公司 | Trimethylamine waste gas pollution control and treatment system |
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Application publication date: 20141015 |