CN100490944C - Method for absorbing vacuum tailed gas in production of polystyrene - Google Patents
Method for absorbing vacuum tailed gas in production of polystyrene Download PDFInfo
- Publication number
- CN100490944C CN100490944C CNB2007100235011A CN200710023501A CN100490944C CN 100490944 C CN100490944 C CN 100490944C CN B2007100235011 A CNB2007100235011 A CN B2007100235011A CN 200710023501 A CN200710023501 A CN 200710023501A CN 100490944 C CN100490944 C CN 100490944C
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- white oil
- absorption tower
- gas
- oil groove
- absorption
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Abstract
The invention is concerned with the absorbing method for vacuum tail-gas in the polystyrene production, it is: the tail-gas passes the white oil slot, the overflow gas of the white oil slot enters the bottom of the absorbing tower and countercurrent touches with the spray white oil, the gas from the absorbing tower absorbs by the activated carbon and then vents. The invention can absorb over 98% of the tail-gas during the production.
Description
Technical field
The invention belongs to the vent gas treatment technical field, refer in particular to the absorption process of vacuum tail gas in a kind of polystyrene production.
Background technology
Produce polystyrene resin with bulk technique, in vacuum state, carry out in the polymerization process, under vacuum action, the styrene tail gas that has trace has certain influence in vacuum terminal port volatile emission to the air of operation area, improvement to vacuum tail gas, just adopt water to absorb back emptying, be about to vacuum tail gas and directly enter in the water and discharge, water absorbs the water that produces can't be separated with cinnamic mixture, though mixture is measured less, still do not reach emission request.
Summary of the invention
The present invention is just in order to overcome above-mentioned deficiency, the absorption process of vacuum tail gas in a kind of polystyrene production is provided, its disposable absorptivity reaches more than 98%, reach vacuum tail gas qualified discharge fully, the main improvement is that modify-water is absorbed as white oil and absorbs, and lays by process cycles to reach goal of the invention.Specifically implement like this: the absorption process of vacuum tail gas during polystyrene is produced, it is characterized in that vacuum tail gas feeds in the white oil groove, the white oil groove overflow that gas enters bottom, absorption tower and spray and under the white oil counter current contacting, the gas that comes out in the top, absorption tower emptying after active carbon adsorption.
Be laid with connecting pipe between white oil groove and top, absorption tower spray head among the present invention, one circulating pump is installed on the connecting pipe, and the white oil feed pipe is connected on the pipeline between white oil groove and circulating pump, this feed cycle design of white oil, can make and guarantee in the technology that white oil in time replenishes and changes, and improves absorptivity.
After white oil recycles a period of time, can enter in the polystyrene production technology by another discharge nozzle of circulating-pump outlet and recycle, resource is fully used.
White oil groove of the present invention top is equipped with an overflow pipe, itself and absorption tower bottom discharge pipe and insert circulating pump and top, absorption tower spray head between pipeline on, but enter the absorption tower if enter too many white oil overflow in the white oil groove, the white oil that flow out the bottom, absorption tower then can be recycled, after the absorption tower white oil uses a period of time, also can enter in the polystyrene production technology and circulate by pipeline.
The present invention is equipped with the porcelain ring filler in order to increase the treatment effeciency on absorption tower in the absorption tower.
The present invention adopts white oil to absorb the vacuum tail gas of polystyrene in producing just, and the tail gas absorptivity is reached more than 98%, not only makes exhaust emissions reach requirement, and reuse recycled raw material, and whole technology investment is few, the efficient height.
Description of drawings
Accompanying drawing is a process chart of the present invention.
The specific embodiment
The absorption process of vacuum tail gas during polystyrene is produced, vacuum tail gas feeds in the white oil groove 1, white oil groove 1 overflow that gas enters 2 bottoms, absorption tower and spray and under the white oil counter current contacting, the porcelain ring filler is housed, the gas that comes out in 2 tops, absorption tower emptying after activated carbon 3 absorption in the absorption tower 2; Be laid with connecting pipe 9 between white oil groove 1 and absorption tower 2 top spray heads, a circulating pump 4 is installed on the connecting pipe 9, white oil feed pipe 5 is connected on the pipeline of 4 of white oil groove 1 and circulating pumps; Circulating pump 4 outlets are equipped with another discharge nozzle 6 and are connected with the polystyrene production technology; White oil groove 1 top is equipped with an overflow pipe 7, itself and absorption tower 2 bottom discharge pipes 8 and insert circulating pump 4 and absorption tower 2 top spray heads between pipeline 9 on.
Claims (5)
1. the absorption process of vacuum tail gas during polystyrene is produced is characterized in that vacuum tail gas feeds in the white oil groove, the white oil groove overflow that gas enters bottom, absorption tower and spray and under the white oil counter current contacting, the gas that comes out in the top, absorption tower emptying after active carbon adsorption.
2. absorption process according to claim 1 is characterized in that being laid with connecting pipe between white oil groove and top, absorption tower spray head, and a circulating pump is installed on the connecting pipe, and the white oil feed pipe is connected on the pipeline between white oil groove and circulating pump.
3. absorption process according to claim 2 is characterized in that circulating-pump outlet is equipped with another discharge nozzle and is connected with the polystyrene production technology.
4. absorption process according to claim 3 is characterized in that white oil groove top is equipped with an overflow pipe, itself and absorption tower bottom discharge pipe and insert circulating pump and top, absorption tower spray head between pipeline on.
5. absorption process according to claim 1 is characterized in that being equipped with in the absorption tower porcelain ring filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100235011A CN100490944C (en) | 2007-06-06 | 2007-06-06 | Method for absorbing vacuum tailed gas in production of polystyrene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100235011A CN100490944C (en) | 2007-06-06 | 2007-06-06 | Method for absorbing vacuum tailed gas in production of polystyrene |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101073742A CN101073742A (en) | 2007-11-21 |
| CN100490944C true CN100490944C (en) | 2009-05-27 |
Family
ID=38975106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100235011A Expired - Fee Related CN100490944C (en) | 2007-06-06 | 2007-06-06 | Method for absorbing vacuum tailed gas in production of polystyrene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100490944C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101569246B1 (en) * | 2013-02-19 | 2015-11-13 | 주식회사 엘지화학 | Manufacturing apparatus and method of expandable polystyrene |
| CN104109898A (en) * | 2014-07-08 | 2014-10-22 | 德清县浙北通讯器材有限公司 | Waste gas treatment device of pickling or electroplating equipment |
| CN109304084A (en) * | 2017-11-16 | 2019-02-05 | 中国石油化工股份有限公司 | Method for organic waste gas recovery containing styrene in a kind of tank field and entrucking material |
| CN108031149A (en) * | 2017-12-20 | 2018-05-15 | 佛山市金银河智能装备股份有限公司 | A set of recyclable vacuum system cooled down using itself liquid charging stock |
| CN110237627B (en) * | 2019-04-25 | 2022-03-25 | 南京塔川化工设备有限公司 | Device and method for cooling and dedusting tail gas of marine diesel engine |
| CN111804095A (en) * | 2020-08-12 | 2020-10-23 | 河北医药化工设计有限公司 | A exhaust treatment device for processing of traditional chinese medicine plaster |
-
2007
- 2007-06-06 CN CNB2007100235011A patent/CN100490944C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101073742A (en) | 2007-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20160606 |