CN101279180A - Method for improving exhaust air recovery tower efficiency and exhaust air recovery tower - Google Patents
Method for improving exhaust air recovery tower efficiency and exhaust air recovery tower Download PDFInfo
- Publication number
- CN101279180A CN101279180A CNA2008101127610A CN200810112761A CN101279180A CN 101279180 A CN101279180 A CN 101279180A CN A2008101127610 A CNA2008101127610 A CN A2008101127610A CN 200810112761 A CN200810112761 A CN 200810112761A CN 101279180 A CN101279180 A CN 101279180A
- Authority
- CN
- China
- Prior art keywords
- recovery tower
- waste gas
- tower
- packing layer
- exhaust air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002912 waste gas Substances 0.000 claims abstract description 36
- 238000012856 packing Methods 0.000 claims abstract description 25
- 239000007921 spray Substances 0.000 claims description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 21
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 12
- 239000007789 gas Substances 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000007599 discharging Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Images
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a method for increasing the efficiency of a waste gas recovery tower, wherein, a packing layer is additionally arranged on the neck of the tower; at least one spraying pipeline is arranged above the packing layer arranged on the neck of the tower; and a condenser is additionally arranged. The method for increasing the efficiency of waste gas recovery tower can effectively absorb benzene, formaldehyde and other organic gases in waste gas, thus reducing the emission of organic gases in waste gas and retrieving organic composition.
Description
Technical field
The present invention relates to a kind of method that improves column efficiency, particularly relate to a kind of method that improves waste gas recovery tower efficient, the invention still further relates to a kind of waste gas recovery tower.
Background technology
In the polyformaldehyde production process, need reclaim waste gas, in waste gas absorption tower, because gas phase temperature height, cause absorption liquid temperature height, spray and to absorb the effect of waste gas poor, organic gas major parts such as the benzene vapor in the waste gas, formaldehyde are not condensed and emptying, not only contaminated environment but also increased the raw-material consumption of device.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method that improves waste gas recovery tower efficient, with organic gas such as the benzene in the effective absorption waste gas, formaldehyde, reduces the discharging of organic gas in the waste gas, reclaims organic composition.
For solving the problems of the technologies described above, the invention provides a kind of method that improves waste gas recovery tower efficient, wherein, set up packing layer at the tower neck, above described tower neck packing layer, at least one spray pipe is set, and sets up a condenser.
The method of above-mentioned raising waste gas recovery tower efficient, wherein, described tower neck packing layer top is provided with two spray pipes.
The present invention also provides a kind of waste gas recovery tower, this recovery tower comprises at least two packing layers, and wherein at least one packing layer is arranged on body of the tower, and another packing layer is arranged on the tower neck, this packing layer top is provided with at least one spray pipe, and described recovery tower also comprises at least one condenser.
The method of raising waste gas recovery tower efficient of the present invention, can reduce the temperature of waste gas absorption liquid by the condenser of setting up, the packing layer that the tower neck is set up with and the spray pipe that is provided with of top can further absorb organic gas such as benzene in the waste gas, formaldehyde, reduce the discharging of organic gas in the waste gas, make the content of the formaldehyde of discharging be lower than 20ppm, benzene content is lower than 15ppm, reaches discharging standards.Waste gas recovery tower provided by the invention can be transformed on the basis of original waste gas recovery tower and form, and is simple in structure, saves cost.
Description of drawings
Fig. 1 is the waste gas recovery tower schematic diagram of preferred embodiment of the present invention.
The specific embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, be the waste gas recovery tower schematic diagram of preferred embodiment of the present invention.Waste gas recovery tower 1 of the present invention comprises packing layer 2 and packing layer 3, wherein packing layer 3 is arranged on tower neck 4 places, two spray pipe 5a and 5b are set in the chimney 6 of packing layer 3 tops, and packing layer 2 tops are provided with spray pipe 11, and waste gas recovery tower 1 also comprises condenser 7.This waste gas recovery tower 1 also is connected with storage tank 10, pump 9 and recycling can 8.
The waste gas that enters absorption tower 1 continues to enter the packing layer 3 at tower neck 4 places after packing layer 2 absorbs, the waste gas absorption liquid enters absorption tower via pump 9 by spray pipe 11,5a, 5b by storage tank 10, absorbs waste gas.Through condenser 7 coolings, reduced the temperature of waste gas absorption liquid, spray pipe 5a that sets up and 5b help absorbing better organic gas such as benzene in the waste gas, formaldehyde, after method processing of the present invention, the content of formaldehyde of discharging is reduced to 20ppm by 200ppm, benzene content is reduced to 15ppm by 250ppm, all meets national requirements.
Claims (4)
1, a kind of method that improves waste gas recovery tower efficient is characterized in that, sets up packing layer at the tower neck, above described tower neck packing layer at least one spray pipe is set, and sets up a condenser.
2, the method for claim 1 is characterized in that, described tower neck packing layer top is provided with two spray pipes.
3, a kind of waste gas recovery tower is characterized in that, this recovery tower comprises at least two packing layers, wherein at least one packing layer is arranged on body of the tower, another packing layer is arranged on the tower neck, and this packing layer top is provided with at least one spray pipe, and described recovery tower also comprises at least one condenser.
4, recovery tower as claimed in claim 3 is characterized in that, the top of described tower neck packing layer is provided with two spray pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101127610A CN101279180A (en) | 2008-05-26 | 2008-05-26 | Method for improving exhaust air recovery tower efficiency and exhaust air recovery tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101127610A CN101279180A (en) | 2008-05-26 | 2008-05-26 | Method for improving exhaust air recovery tower efficiency and exhaust air recovery tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101279180A true CN101279180A (en) | 2008-10-08 |
Family
ID=40011963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101127610A Pending CN101279180A (en) | 2008-05-26 | 2008-05-26 | Method for improving exhaust air recovery tower efficiency and exhaust air recovery tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101279180A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905109B (en) * | 2009-06-05 | 2012-11-14 | 杰智环境科技股份有限公司 | A device and method for wet scrubbing, purification and recovery of organic waste gas |
| CN105968710A (en) * | 2016-06-06 | 2016-09-28 | 常州乔尔塑料有限公司 | Environment-friendly compound manufacturing technology combining amino molding compound granule production with formaldehyde production |
| CN106178894A (en) * | 2016-08-25 | 2016-12-07 | 中石化炼化工程（集团）股份有限公司 | A kind of method slowing down the corrosion of FCC flue gas desulfurization device chimney |
| CN108854460A (en) * | 2018-05-04 | 2018-11-23 | 青岛海湾精细化工有限公司 | Exhaust gas recovery system in ketene dimer production |
-
2008
- 2008-05-26 CN CNA2008101127610A patent/CN101279180A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905109B (en) * | 2009-06-05 | 2012-11-14 | 杰智环境科技股份有限公司 | A device and method for wet scrubbing, purification and recovery of organic waste gas |
| CN105968710A (en) * | 2016-06-06 | 2016-09-28 | 常州乔尔塑料有限公司 | Environment-friendly compound manufacturing technology combining amino molding compound granule production with formaldehyde production |
| CN106178894A (en) * | 2016-08-25 | 2016-12-07 | 中石化炼化工程（集团）股份有限公司 | A kind of method slowing down the corrosion of FCC flue gas desulfurization device chimney |
| CN108854460A (en) * | 2018-05-04 | 2018-11-23 | 青岛海湾精细化工有限公司 | Exhaust gas recovery system in ketene dimer production |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20081008 |