CN104307310A - Gas treatment system and method in photosensory membrane printing - Google Patents
Gas treatment system and method in photosensory membrane printing Download PDFInfo
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- CN104307310A CN104307310A CN201410623830.XA CN201410623830A CN104307310A CN 104307310 A CN104307310 A CN 104307310A CN 201410623830 A CN201410623830 A CN 201410623830A CN 104307310 A CN104307310 A CN 104307310A
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Abstract
The invention provides a gas treatment system and method in photosensory membrane printing. A gas can be methanol and butanone; the treatment system comprises the following components: the gas passes through a first refrigerator and enters the bottom of an absorbing tower; the gas discharged from the top of the absorbing tower enters an adsorption concentrator; clean gas discharged from the adsorption concentrator is discharged into the atmosphere; a solvent discharged from the bottom of the absorbing tower is divided into two paths; one path of the solvent passes through a second refrigerator and enters the middle part of the absorbing tower; the other path of the solvent enters the middle part of a desorbing tower; the solvent discharged from the top of the desorbing tower enters a condenser and a backflow tank; the solvent discharged from the backflow tank is divided into two paths; one part of the solvent is fed to the downstream; the other path of the solvent is fed to the top of the desorbing tower; an absorbent passes through a third refrigerator and enters the top of the absorbing tower; the bottom of the desorbing tower is communicated with an inlet end of the third refrigerator through a pipeline. The gas treatment system has the advantages of good treatment effect, good economic benefit, simple structure and the like.
Description
Technical field
The present invention relates to gas treatment, particularly the treatment system of gas and method in light-sensitive surface printing.
Background technology
In light-sensitive surface printing, can discharge containing the organic tail gas such as methyl alcohol, butanone, the discharge of such tail gas not only pollutes environment, and causes the significant wastage of resource.At present, the domestic main flow treatment technology for volatility organic tail gas mainly comprises oxidizing process and absorption method.
Oxidizing process is exactly utilize various technological means that the organic solvent in exhaust is resolved into carbon dioxide and water, major technique comprises Production by Catalytic Combustion Process (RCO), heating power burning method (RTO) etc., because the method can not think that enterprise brings actual economic benefit, user does not generally adopt.
Absorption method is exactly that the method great advantage is to obtain income by recycling design by making discharging waste gas meet the requirement of environmental protection from containing reclaiming organic solvent in the waste gas of organic solvent.Absorption method and absorption process is mainly comprised from containing the method reclaiming organic solvent the waste gas of organic solvent.
Absorption method is exactly utilize adsorbent to make waste gas purification from containing organic solvent the waste gas of organic solvent.After adsorbent organic solvent, make organic solvent resolve from adsorbent thus obtain organic solvent by various desorption method, because the organic solvent obtained can utilize as solvent, for this reason, realize resource circulation utilization and create economic worth.Main adsorption method comprises following several:
Activated carbon fiber (or active carbon particle) absorption, steam desorption solvent absorption method, feature is: multiple activated carbon fiber (or active carbon particle) adsorbent bed is passed through in the waste gas parallel connection containing organic solvent, after adsorbent bed reaches capacity, realize the desorb of adsorbent directly to adsorbent bed water flowing steam.The shortcoming of the method is: energy consumption is relatively high, be not suitable for facile hydrolysis solvent, comparatively large to adsorbent damage, is generally not used in high concentration tail gas.
Activated carbon fiber (or active carbon particle) absorption, nitrogen protection hot blast desorption solvent absorption method; feature is: multiple activated carbon fiber (or active carbon particle) adsorbent bed is passed through in the waste gas parallel connection containing organic solvent; when the adsorbent bed backward adsorbent bed that reaches capacity passes into nitrogen, under nitrogen protection condition, heating realizes the desorb of adsorbent.After adsorbent is heated to uniform temperature, water quench circulating nitrogen gas is utilized to make organic solvent cooling in nitrogen realize solvent recovery.The shortcoming of the method is: energy consumption is relatively high, investment is large to adsorbent.Because activated carbon fiber or active carbon particle have certain water absorbing capacity, the organic solvent of recovery contains the moisture of some, and recycling design just can use after processing further.
Conventional suction method, the feature of the method is: utilize high boiling organic solvent fully to contact with the waste gas containing organic solvent in absorption tower, high boiling organic solvent is absorbing organic solvent from waste gas, and waste gas becomes relatively clean.High boiling organic solvent makes the low boiling point organic solvent in high boiling organic solvent be separated by rectifying after absorbing organic solvent, and the absorbent after rectifying is separated can recycle and isolated organic solvent also can recycle.The shortcoming of the method is: equipment investment is large, and equipment operating difficulty is large, and can not ensure that the waste gas discharged meets national requirements for environmental protection.
Summary of the invention
In order to solve the deficiency in above-mentioned prior art, the invention provides that a kind for the treatment of effect is good, good in economic efficiency, gas handling system in the simple light-sensitive surface printing of structure.
The object of the invention is to be achieved through the following technical solutions:
Gas handling system in a kind of light-sensitive surface printing, described gas comprises methyl alcohol, butanone; Described gas handling system comprises gas passage, solvent channel and absorbent passage;
Described gas passage comprises: gas enters the bottom on absorption tower after the first refrigerator, and the gas of discharging from top, absorption tower enters Adsorption Concentration device, and the clean gas of discharging Adsorption Concentration device enters air;
Described solvent channel comprises: the solvent of discharging bottom described absorption tower is divided into two-way, and a road enters the middle part on absorption tower after the second refrigerator, and another road enters the middle part of desorber; The solvent of discharging from desorber top enters condenser, return tank, and the solvent of discharging from return tank is divided into two-way, a road fed downstream, and the top of desorber is sent on another road;
Described absorbent passage comprises: absorbent enters the top on absorption tower after the 3rd refrigerator, and the entrance point of the 3rd refrigerator described in pipeline communication is passed through in the bottom of described desorber.
According to above-mentioned gas handling system, alternatively, described gas handling system comprises further:
Heat exchanger, the solvent before entering desorber and the absorbent that enters before the 3rd refrigerator are by heat exchanger heat exchange.
According to above-mentioned gas handling system, alternatively, the solvent after heat exchange passes through primary heater.
According to above-mentioned gas handling system, preferably, described Adsorption Concentration device is runner inspissator, the gas entering Adsorption Concentration device is divided into two-way, one tunnel enters air after treatment region, another road is discharged behind cooling zone, after after secondary heater regeneration, enter the renewing zone absorbed in inspissator, enter after discharge in the first refrigerator.
The present invention also aims to provide gas processing method in good, the good in economic efficiency light-sensitive surface printing of a kind for the treatment of effect, this goal of the invention is achieved by the following technical programs:
Gas processing method in a kind of light-sensitive surface printing, described gas comprises methyl alcohol, butanone; Described gas processing method comprises:
Gas enters the bottom on absorption tower after the first refrigerator, and the gas of discharging from top, absorption tower enters Adsorption Concentration device, and the clean gas of discharging Adsorption Concentration device enters air;
The solvent of discharging bottom described absorption tower is divided into two-way, and a road enters the middle part on absorption tower after the second refrigerator, and another road enters the middle part of desorber; The solvent of discharging from desorber top enters condenser, return tank, and the solvent of discharging from return tank is divided into two-way, a road fed downstream, and the top of desorber is sent on another road;
Absorbent enters the top on absorption tower after the 3rd refrigerator, and the entrance point of the 3rd refrigerator described in pipeline communication is passed through in the bottom of described desorber.
According to above-mentioned gas processing method, preferably, the temperature of the fluid after the first refrigerator, the second refrigerator and the 3rd refrigerator is all lower than 15 DEG C.
According to above-mentioned gas processing method, preferably, described Adsorption Concentration device is runner inspissator, the gas entering Adsorption Concentration device is divided into two-way, one tunnel enters air after treatment region, another road is discharged behind cooling zone, after after secondary heater regeneration, enter the renewing zone absorbed in inspissator, enter after discharge in the first refrigerator.
According to above-mentioned gas processing method, preferably, the gas accounting entering cooling zone is 10%-30%.
According to above-mentioned gas processing method, alternatively, the solvent before entering desorber and the absorbent that enters before the 3rd refrigerator are by heat exchanger heat exchange.
According to above-mentioned gas processing method, described gas is waste gas.
Compared with prior art, the beneficial effect that the present invention has is:
1, the gas after process meets discharging standards completely;
2, the butanone chromatographic purity > 99%, moisture content < 0.2% reclaimed, is turn waste into wealth at process waste gas, improves economic benefit;
3, the present invention had both solved the large problem of absorption method thermal discharge, and solving again condensation method can not the problem of qualified discharge, is particularly suitable in high concentration organic tail gas process applications.
4, structure of the present invention is simple, and cost is low, easily realizes.
Accompanying drawing explanation
With reference to accompanying drawing, disclosure of the present invention will be easier to understand.Those skilled in the art it is easily understood that: these accompanying drawings only for illustrating technical scheme of the present invention, and and are not intended to be construed as limiting protection scope of the present invention.In figure:
Fig. 1 is the basic block diagram according to gas handling system in the embodiment of the present invention 1.
Detailed description of the invention
Fig. 1 and following description describe Alternate embodiments of the present invention and how to implement to instruct those skilled in the art and to reproduce the present invention.In order to instruct technical solution of the present invention, simplifying or having eliminated some conventional aspects.Those skilled in the art should understand that the modification that is derived from these embodiments or replace will within the scope of the invention.Those skilled in the art should understand that following characteristics can combine to form multiple modification of the present invention in every way.Thus, the present invention is not limited to following Alternate embodiments, and only by claim and their equivalents.
Embodiment:
Fig. 1 schematically provides the structure diagram of the treatment system of waste gas in the light-sensitive surface printing of the embodiment of the present invention, and described waste gas comprises methyl alcohol, butanone; As shown in Figure 1, described gas handling system comprises gas passage, solvent channel and absorbent passage;
Described gas passage comprises: gas enters the bottom on absorption tower 21 after the first refrigerator 11, and the gas of discharging from top, absorption tower 21 enters Adsorption Concentration device 31, and the clean gas of discharging Adsorption Concentration device 31 enters air; Described Adsorption Concentration device 31 is runner inspissator, the gas entering Adsorption Concentration device is divided into two-way, one tunnel enters air after treatment region, another road is discharged behind cooling zone, after after secondary heater 110 regenerates, enter the renewing zone absorbed in inspissator, enter after discharge in the first refrigerator 11.
Described solvent channel comprises: the solvent of discharging bottom described absorption tower 21 is divided into two-way, and a road enters the middle part on absorption tower 21 after the second refrigerator 41, and another road enters the middle part of desorber 51; The solvent of discharging from desorber 51 top enters condenser 61, return tank 71, and the solvent of discharging from return tank 71 is divided into two-way, a road fed downstream, and the top of desorber 51 is sent on another road; The absorbent entering the solvent before desorber 51 and enter before the 3rd refrigerator 81 is by heat exchanger 91 heat exchange, and the solvent after heat exchange is by primary heater 100;
Described absorbent passage comprises: absorbent enters the top on absorption tower 21 after the 3rd refrigerator 81, and the entrance point of the 3rd refrigerator 81 described in pipeline communication is passed through in the bottom of described desorber 41, and described absorbent is DMF, EPH, white oil or diesel oil.
Gas processing method in the light-sensitive surface printing of the embodiment of the present invention, described gas comprises methyl alcohol, butanone; Described gas processing method comprises:
Gas (after refrigeration, temperature is lower than 15 DEG C) after the first refrigerator enters the bottom on absorption tower, the gas of discharging from top, absorption tower enters Adsorption Concentration device, the clean gas of discharging Adsorption Concentration device enters air, be specially: described Adsorption Concentration device is runner inspissator, the gas entering Adsorption Concentration device is divided into two-way, one tunnel enters air after treatment region, another road is discharged after cooling zone (accounting is 10%-30%), after after secondary heater regeneration, enter the renewing zone absorbed in inspissator, enter in the first refrigerator after discharge;
The solvent of discharging bottom described absorption tower is divided into two-way, and a road (after refrigeration, temperature is lower than 15 DEG C) after the second refrigerator enter the middle part on absorption tower, and another road enters the middle part of desorber; The solvent of discharging from desorber top enters condenser, return tank, and the solvent of discharging from return tank is divided into two-way, a road fed downstream, and the top of desorber is sent on another road;
Absorbent (after refrigeration, temperature is lower than 15 DEG C) after the 3rd refrigerator enters the top on absorption tower, the bottom of described desorber is by the entrance point of the 3rd refrigerator described in pipeline communication, and the solvent before entering desorber and the absorbent that enters before the 3rd refrigerator are by heat exchanger heat exchange.
Be according to the benefit that the present embodiment reaches: the gas after process meets discharging standards completely; The butanone chromatographic purity > 99%, moisture content < 0.2% reclaimed, is turn waste into wealth at process waste gas, improves economic benefit; Both solved the problem that absorption method thermal discharge is large, solving again condensation method can not the problem of qualified discharge, is particularly suitable in high concentration organic tail gas process applications.Structure is simple, and cost is low, easily realizes.
Claims (10)
1. a gas handling system in light-sensitive surface printing, described gas comprises methyl alcohol, butanone; It is characterized in that: described gas handling system comprises gas passage, solvent channel and absorbent passage;
Described gas passage comprises: gas enters the bottom on absorption tower after the first refrigerator, and the gas of discharging from top, absorption tower enters Adsorption Concentration device, and the clean gas of discharging Adsorption Concentration device enters air;
Described solvent channel comprises: the solvent of discharging bottom described absorption tower is divided into two-way, and a road enters the middle part on absorption tower after the second refrigerator, and another road enters the middle part of desorber; The solvent of discharging from desorber top enters condenser, return tank, and the solvent of discharging from return tank is divided into two-way, a road fed downstream, and the top of desorber is sent on another road;
Described absorbent passage comprises: absorbent enters the top on absorption tower after the 3rd refrigerator, and the entrance point of the 3rd refrigerator described in pipeline communication is passed through in the bottom of described desorber.
2. gas handling system according to claim 1, is characterized in that: described gas handling system comprises further:
Heat exchanger, the solvent before entering desorber and the absorbent that enters before the 3rd refrigerator are by heat exchanger heat exchange.
3. gas handling system according to claim 2, is characterized in that: the solvent after heat exchange passes through primary heater.
4. gas handling system according to claim 1, it is characterized in that: described Adsorption Concentration device is runner inspissator, the gas entering Adsorption Concentration device is divided into two-way, one tunnel enters air after treatment region, another road is discharged behind cooling zone, after after secondary heater regeneration, enter the renewing zone absorbed in inspissator, enter after discharge in the first refrigerator.
5. a gas processing method in light-sensitive surface printing, described gas comprises methyl alcohol, butanone; It is characterized in that: described gas processing method comprises:
Gas enters the bottom on absorption tower after the first refrigerator, and the gas of discharging from top, absorption tower enters Adsorption Concentration device, and the clean gas of discharging Adsorption Concentration device enters air;
The solvent of discharging bottom described absorption tower is divided into two-way, and a road enters the middle part on absorption tower after the second refrigerator, and another road enters the middle part of desorber; The solvent of discharging from desorber top enters condenser, return tank, and the solvent of discharging from return tank is divided into two-way, a road fed downstream, and the top of desorber is sent on another road;
Absorbent enters the top on absorption tower after the 3rd refrigerator, and the entrance point of the 3rd refrigerator described in pipeline communication is passed through in the bottom of described desorber.
6. gas processing method according to claim 5, is characterized in that: the temperature of the fluid after the first refrigerator, the second refrigerator and the 3rd refrigerator is all lower than 15 DEG C.
7. gas processing method according to claim 5, it is characterized in that: described Adsorption Concentration device is runner inspissator, the gas entering Adsorption Concentration device is divided into two-way, one tunnel enters air after treatment region, another road is discharged behind cooling zone, after after secondary heater regeneration, enter the renewing zone absorbed in inspissator, enter after discharge in the first refrigerator.
8. gas processing method according to claim 7, is characterized in that: the gas accounting entering cooling zone is 10%-30%.
9. gas processing method according to claim 5, is characterized in that: the solvent before entering desorber and the absorbent that enters before the 3rd refrigerator are by heat exchanger heat exchange.
10. gas processing method according to claim 5, is characterized in that: described absorbent is DMF, EPH, white oil or diesel oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410623830.XA CN104307310A (en) | 2014-11-07 | 2014-11-07 | Gas treatment system and method in photosensory membrane printing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410623830.XA CN104307310A (en) | 2014-11-07 | 2014-11-07 | Gas treatment system and method in photosensory membrane printing |
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| CN104307310A true CN104307310A (en) | 2015-01-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688599A (en) * | 2016-02-27 | 2016-06-22 | 马军 | Waste gas treatment device and method |
| CN105833666A (en) * | 2016-04-27 | 2016-08-10 | 河北美邦工程科技股份有限公司 | VOCs waste gas treatment method |
| CN105833657A (en) * | 2016-05-16 | 2016-08-10 | 湖北楚天蓝环保设备工程有限公司 | Alcohol mixture tail gas treatment device and method |
| CN108744889A (en) * | 2018-06-19 | 2018-11-06 | 天津天清环保科技股份有限公司 | It is a kind of to absorb the VOCs waste gas processing methods being combined with absorption |
| CN110354644A (en) * | 2018-04-10 | 2019-10-22 | 天津科技大学 | A kind of efficient butyl acetate waste gas absorption and desorption apparatus |
| CN114425223A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Tetrahydrofuran tail gas recovery system, method and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053733A (en) * | 2007-02-05 | 2007-10-17 | 马军 | Processing method for organic waste gas |
| CN201333374Y (en) * | 2008-11-20 | 2009-10-28 | 武汉凯迪电力环保有限公司 | Device capable of collecting carbon dioxide contained in flue gases of power plant through ammonia by utilizing void tower |
| CN101855002A (en) * | 2007-09-14 | 2010-10-06 | 阿克清洁碳公司 | Improved method for regeneration of absorbent |
| CN102133499A (en) * | 2011-03-03 | 2011-07-27 | 杨东 | System and method for trapping acid gas in smoke |
| CN103561848A (en) * | 2011-06-20 | 2014-02-05 | 巴布考克日立株式会社 | Combustion exhaust gas treatment system and combustion exhaust gas treatment method |
| CN204121940U (en) * | 2014-11-07 | 2015-01-28 | 清本环保工程(杭州)有限公司 | Gas handling system in light-sensitive surface printing |
-
2014
- 2014-11-07 CN CN201410623830.XA patent/CN104307310A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053733A (en) * | 2007-02-05 | 2007-10-17 | 马军 | Processing method for organic waste gas |
| CN101855002A (en) * | 2007-09-14 | 2010-10-06 | 阿克清洁碳公司 | Improved method for regeneration of absorbent |
| CN201333374Y (en) * | 2008-11-20 | 2009-10-28 | 武汉凯迪电力环保有限公司 | Device capable of collecting carbon dioxide contained in flue gases of power plant through ammonia by utilizing void tower |
| CN102133499A (en) * | 2011-03-03 | 2011-07-27 | 杨东 | System and method for trapping acid gas in smoke |
| CN103561848A (en) * | 2011-06-20 | 2014-02-05 | 巴布考克日立株式会社 | Combustion exhaust gas treatment system and combustion exhaust gas treatment method |
| CN204121940U (en) * | 2014-11-07 | 2015-01-28 | 清本环保工程(杭州)有限公司 | Gas handling system in light-sensitive surface printing |
Non-Patent Citations (1)
| Title |
|---|
| 李广超主编: "《大气污染控制技术》", 31 January 2008, 化学工业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688599A (en) * | 2016-02-27 | 2016-06-22 | 马军 | Waste gas treatment device and method |
| CN105833666A (en) * | 2016-04-27 | 2016-08-10 | 河北美邦工程科技股份有限公司 | VOCs waste gas treatment method |
| CN105833657A (en) * | 2016-05-16 | 2016-08-10 | 湖北楚天蓝环保设备工程有限公司 | Alcohol mixture tail gas treatment device and method |
| CN110354644A (en) * | 2018-04-10 | 2019-10-22 | 天津科技大学 | A kind of efficient butyl acetate waste gas absorption and desorption apparatus |
| CN108744889A (en) * | 2018-06-19 | 2018-11-06 | 天津天清环保科技股份有限公司 | It is a kind of to absorb the VOCs waste gas processing methods being combined with absorption |
| CN108744889B (en) * | 2018-06-19 | 2021-07-09 | 天津天清环保科技股份有限公司 | VOCs waste gas treatment method combining absorption and adsorption |
| CN114425223A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Tetrahydrofuran tail gas recovery system, method and application |
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Application publication date: 20150128 |