CN109289432A - A kind of organic exhaust gas nitrogen desorption recovery process - Google Patents
A kind of organic exhaust gas nitrogen desorption recovery process Download PDFInfo
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- CN109289432A CN109289432A CN201710603810.XA CN201710603810A CN109289432A CN 109289432 A CN109289432 A CN 109289432A CN 201710603810 A CN201710603810 A CN 201710603810A CN 109289432 A CN109289432 A CN 109289432A
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- nitrogen
- gas
- exhaust gas
- organic exhaust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40086—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by using a purge gas
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of organic exhaust gas nitrogen, and recovery process is desorbed, and is adsorbed using several primary adsorption tanks and a secondary absorption tank to organic exhaust gas, and nitrogen is recycled to be desorbed, separate organic gas and innocuous gas, organic gas is again Ke Xunhuanliyong by liquefaction, and for the present invention by the way of nitrogen desorption, recovery efficiency is high, solvent moisture-free after the recovery, it can utilize again, the adsorbent material service life is long, save the cost, emission degree of purity is high, is good for the environment.
Description
Technical field
The present invention relates to the technical fields of organic exhaust gas recycling, and in particular to a kind of organic exhaust gas nitrogen desorption recycling work
Skill.
Background technique
Mainly there are vapor desorption and nitrogen that two ways is desorbed the processing of organic waste at present, though vapor is desorbed
So there is a good adsorption effect of activated carbon in water, but disadvantage influences to reuse it is obvious that the solvent moisture content recycled is high,
A large amount of waste water are generated, processing trouble, steam consumption is big, and operating cost is high, and emission slant acidity has a fixing to environment
It rings.And general nitrogen desorption mode is there is also operating cost height, the problem of wastage of material.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of organic exhaust gas nitrogen desorptions to recycle
Technique.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of organic exhaust gas nitrogen desorption recovery process, it is characterised in that: comprise the steps of:
(1) organic exhaust gas is collected: being collected by gas sampling equipment to the organic exhaust gas in workshop；
(2) it filters: collected exhaust gas being discharged into filter by high pressure blower and is filtered, solid particle therein is removed
Impurity；
(3) cooling: filtered organic exhaust gas being discharged into cooling tower and carries out cooling treatment；
(4) it distributes: organic exhaust gas after cooling is evenly distributed by collecting wind distributor to several primary adsorption tanks；
(5) adsorption treatment primary adsorption: is carried out to organic exhaust gas by several primary adsorption tanks；
(6) nitrogen is desorbed: carrying out desorption processing to organic exhaust gas using nitrogen；
(7) solvent stores: solvent will be used as to store after the organic gas cooling liquid after desorption；
(8) solvent post-processes: solvent being post-processed, wherein impurity is further removed；
(9) finished product stores: the solvent after removal impurity is stored as organic gas finished product；
(10) workshop is recycled: finished product organic gas can be used for workshop again and reuse.
Preferably, the cooling temperature in the step (3) is 30-60 DEG C.
Preferably, the step (5) is adsorbed by Activated Carbon toward VOCs-Containing Exhausts, the active carbon after absorption is sent into
In desorption column, another part tail gas up to standard is discharged into atmosphere after Voc gas detection.
Preferably, the air in desorption column is all first replaced as nitrogen in the step (6), nitrogen is by nitrogen machine
Group provides, and is equipped with nitrogen storage tank, and the nitrogen temperature in desorption column is 80-200 DEG C.
Preferably, gas obtained in the step (6) carries out oxygen content detection after desorption blower discharge, it is up to standard
Gas stores after cooling liquid, and cooling temperature is -40 DEG C hereinafter, gas not up to standard is sent into second level after heater heats
Adsorption tanks.
Preferably, the heat of the heater is provided by steam, the gas temperature in secondary absorption tank is 40-50
DEG C, the active carbon after absorption is sent into desorption column, and another part tail gas up to standard is discharged into atmosphere after Voc gas detection.
Preferably, the nitrogen in the step (6) can be recycled in nitrogen storage tank after and reuse.
Recovery process is desorbed in a kind of organic exhaust gas nitrogen of the present invention, the deficiencies in the prior art is compensated for, using nitrogen
The attached mode of qi exhaustion, recovery efficiency are high, and solvent moisture-free after the recovery can utilize again, and the adsorbent material service life is long, save at
This, emission degree of purity is high, is good for the environment.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Specific embodiment
The present invention will be further described with example with reference to the accompanying drawing.
Embodiment 1
A kind of organic exhaust gas nitrogen desorption recovery process, it is characterised in that: comprise the steps of:
(1) organic exhaust gas is collected: being collected by gas sampling equipment to the organic exhaust gas in workshop；
(2) it filters: collected exhaust gas being discharged into filter by high pressure blower and is filtered, solid particle therein is removed
Impurity；
(3) cooling: filtered organic exhaust gas being discharged into cooling tower and carries out cooling treatment；
(4) it distributes: organic exhaust gas after cooling is evenly distributed by collecting wind distributor to several primary adsorption tanks；
(5) adsorption treatment primary adsorption: is carried out to organic exhaust gas by several primary adsorption tanks；
(6) nitrogen is desorbed: carrying out desorption processing to organic exhaust gas using nitrogen；
(7) solvent stores: solvent will be used as to store after the organic gas cooling liquid after desorption；
(8) solvent post-processes: solvent being post-processed, wherein impurity is further removed；
(9) finished product stores: the solvent after removal impurity is stored as organic gas finished product；
(10) workshop is recycled: finished product organic gas can be used for workshop again and reuse.
Wherein, the cooling temperature in the step (3) is 30 DEG C.
Wherein, the step (5) is adsorbed by Activated Carbon toward VOCs-Containing Exhausts, and the active carbon after absorption is sent into desorption
In tower, another part tail gas up to standard is discharged into atmosphere after Voc gas detection.
Wherein, the air in desorption column is all first replaced as nitrogen in the step (6), nitrogen is mentioned by nitrogen unit
For, and it is equipped with nitrogen storage tank, the nitrogen temperature in desorption column is 80 DEG C.
Wherein, gas obtained in the step (6) carries out oxygen content detection, gas up to standard after desorption blower discharge
It is stored after cooling liquid, cooling temperature is -40 DEG C, and gas not up to standard is sent into secondary absorption tank after heater heats.
Wherein, the heat of the heater is provided by steam, and the gas temperature in secondary absorption tank is 40 DEG C, after absorption
Active carbon be sent into desorption column, another part tail gas up to standard is discharged into atmosphere after Voc gas detection.
Wherein, the nitrogen in the step (6) can be recycled in nitrogen storage tank after reuses.
Embodiment 2
A kind of organic exhaust gas nitrogen desorption recovery process, it is characterised in that: comprise the steps of:
(1) organic exhaust gas is collected: being collected by gas sampling equipment to the organic exhaust gas in workshop；
(2) it filters: collected exhaust gas being discharged into filter by high pressure blower and is filtered, solid particle therein is removed
Impurity；
(3) cooling: filtered organic exhaust gas being discharged into cooling tower and carries out cooling treatment；
(4) it distributes: organic exhaust gas after cooling is evenly distributed by collecting wind distributor to several primary adsorption tanks；
(5) adsorption treatment primary adsorption: is carried out to organic exhaust gas by several primary adsorption tanks；
(6) nitrogen is desorbed: carrying out desorption processing to organic exhaust gas using nitrogen；
(7) solvent stores: solvent will be used as to store after the organic gas cooling liquid after desorption；
(8) solvent post-processes: solvent being post-processed, wherein impurity is further removed；
(9) finished product stores: the solvent after removal impurity is stored as organic gas finished product；
(10) workshop is recycled: finished product organic gas can be used for workshop again and reuse.
Wherein, the cooling temperature in the step (3) is 60 DEG C.
Wherein, the step (5) is adsorbed by Activated Carbon toward VOCs-Containing Exhausts, and the active carbon after absorption is sent into desorption
In tower, another part tail gas up to standard is discharged into atmosphere after Voc gas detection.
Wherein, the air in desorption column is all first replaced as nitrogen in the step (6), nitrogen is mentioned by nitrogen unit
For, and it is equipped with nitrogen storage tank, the nitrogen temperature in desorption column is 200 DEG C.
Wherein, gas obtained in the step (6) carries out oxygen content detection, gas up to standard after desorption blower discharge
It is stored after cooling liquid, cooling temperature is -50 DEG C, and gas not up to standard is sent into secondary absorption tank after heater heats.
Wherein, the heat of the heater is provided by steam, and the gas temperature in secondary absorption tank is 50 DEG C, after absorption
Active carbon be sent into desorption column, another part tail gas up to standard is discharged into atmosphere after Voc gas detection.
Wherein, the nitrogen in the step (6) can be recycled in nitrogen storage tank after reuses.
Embodiment 3
A kind of organic exhaust gas nitrogen desorption recovery process, it is characterised in that: comprise the steps of:
(1) organic exhaust gas is collected: being collected by gas sampling equipment to the organic exhaust gas in workshop；
(2) it filters: collected exhaust gas being discharged into filter by high pressure blower and is filtered, solid particle therein is removed
Impurity；
(3) cooling: filtered organic exhaust gas being discharged into cooling tower and carries out cooling treatment；
(4) it distributes: organic exhaust gas after cooling is evenly distributed by collecting wind distributor to several primary adsorption tanks；
(5) adsorption treatment primary adsorption: is carried out to organic exhaust gas by several primary adsorption tanks；
(6) nitrogen is desorbed: carrying out desorption processing to organic exhaust gas using nitrogen；
(7) solvent stores: solvent will be used as to store after the organic gas cooling liquid after desorption；
(8) solvent post-processes: solvent being post-processed, wherein impurity is further removed；
(9) finished product stores: the solvent after removal impurity is stored as organic gas finished product；
(10) workshop is recycled: finished product organic gas can be used for workshop again and reuse.
Wherein, the cooling temperature in the step (3) is 45 DEG C.
Wherein, the step (5) is adsorbed by Activated Carbon toward VOCs-Containing Exhausts, and the active carbon after absorption is sent into desorption
In tower, another part tail gas up to standard is discharged into atmosphere after Voc gas detection.
Wherein, the air in desorption column is all first replaced as nitrogen in the step (6), nitrogen is mentioned by nitrogen unit
For, and it is equipped with nitrogen storage tank, the nitrogen temperature in desorption column is 140 DEG C.
Wherein, gas obtained in the step (6) carries out oxygen content detection, gas up to standard after desorption blower discharge
It is stored after cooling liquid, cooling temperature is -60 DEG C, and gas not up to standard is sent into secondary absorption tank after heater heats.
Wherein, the heat of the heater is provided by steam, and the gas temperature in secondary absorption tank is 45 DEG C, after absorption
Active carbon be sent into desorption column, another part tail gas up to standard is discharged into atmosphere after Voc gas detection.
Wherein, the nitrogen in the step (6) can be recycled in nitrogen storage tank after reuses.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., is all included in the scope of protection of the present invention within principle.
Claims (7)
1. recovery process is desorbed in a kind of organic exhaust gas nitrogen, it is characterised in that: comprise the steps of:
(1) organic exhaust gas is collected: being collected by gas sampling equipment to the organic exhaust gas in workshop；
(2) it filters: collected exhaust gas being discharged into filter by high pressure blower and is filtered, solid particle therein is removed
Impurity；
(3) cooling: filtered organic exhaust gas being discharged into cooling tower and carries out cooling treatment；
(4) it distributes: organic exhaust gas after cooling is evenly distributed by collecting wind distributor to several primary adsorption tanks；
(5) adsorption treatment primary adsorption: is carried out to organic exhaust gas by several primary adsorption tanks；
(6) nitrogen is desorbed: carrying out desorption processing to organic exhaust gas using nitrogen；
(7) solvent stores: solvent will be used as to store after the organic gas cooling liquid after desorption；
(8) solvent post-processes: solvent being post-processed, wherein impurity is further removed；
(9) finished product stores: the solvent after removal impurity is stored as organic gas finished product；
(10) workshop is recycled: finished product organic gas can be used for workshop again and reuse.
2. recovery process is desorbed in a kind of organic exhaust gas nitrogen according to claim 1, which is characterized in that the step
(3) cooling temperature in is 30-60 DEG C.
3. recovery process is desorbed in a kind of organic exhaust gas nitrogen according to claim 1, which is characterized in that the step
(5) it is adsorbed by Activated Carbon toward VOCs-Containing Exhausts, the active carbon after absorption is sent into desorption column, another part tail gas warp up to standard
It is discharged into atmosphere after crossing Voc gas detection.
4. recovery process is desorbed in a kind of organic exhaust gas nitrogen according to claim 1, which is characterized in that the step
(6) air in desorption column is all first replaced as nitrogen in, nitrogen is provided by nitrogen unit, and is equipped with nitrogen storage tank, desorption
Nitrogen temperature in tower is 80-200 DEG C.
5. recovery process is desorbed in a kind of organic exhaust gas nitrogen according to claim 4, which is characterized in that the step
(6) gas obtained in carries out oxygen content detection after desorption blower discharge, and gas up to standard stores after cooling liquid, cooling
Temperature is -40 DEG C hereinafter, gas not up to standard is sent into secondary absorption tank after heater heats.
6. recovery process is desorbed in a kind of organic exhaust gas nitrogen according to claim 5, which is characterized in that the heater
Heat provided by steam, the gas temperature in secondary absorption tank is 40-50 DEG C, and active carbon after absorption is sent into desorption column, separately
A part of tail gas up to standard is discharged into atmosphere after Voc gas detection.
7. recovery process is desorbed in a kind of organic exhaust gas nitrogen according to claim 1, which is characterized in that the step
(6) nitrogen in can be recycled in nitrogen storage tank after to be reused.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710603810.XA CN109289432A (en) | 2017-07-24 | 2017-07-24 | A kind of organic exhaust gas nitrogen desorption recovery process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710603810.XA CN109289432A (en) | 2017-07-24 | 2017-07-24 | A kind of organic exhaust gas nitrogen desorption recovery process |
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| CN109289432A true CN109289432A (en) | 2019-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494993A (en) * | 2020-12-28 | 2021-03-16 | 大连福佳·大化石油化工有限公司 | Adsorption tower stripping system and stripping method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614738A (en) * | 2012-04-01 | 2012-08-01 | 河北天龙彩印有限公司 | Organic waste gas desorption process |
| CN103585854A (en) * | 2013-10-29 | 2014-02-19 | 嘉园环保股份有限公司 | Technology for recovering and processing organic exhaust gas by activated carbon adsorption and N2 desorption |
| CN104958995A (en) * | 2015-06-23 | 2015-10-07 | 江苏中远环保科技有限公司 | Technology and device for treating organic waste gas with activated carbon by means of nitrogen heating and vacuum desorption |
| CN204768144U (en) * | 2015-07-10 | 2015-11-18 | 张家港市三星净化设备制造有限公司 | Adsorption recovery device of organic waste gas |
| AU2015269515A1 (en) * | 2014-06-04 | 2017-01-05 | Kabushiki Kaisha Toshiba | Carbon dioxide recovery device, and method for treating exhaust gas |
| CN106731484A (en) * | 2017-01-25 | 2017-05-31 | 华东理工大学 | A kind of industrial waste gas VOC recovery methods and its recovery system |
-
2017
- 2017-07-24 CN CN201710603810.XA patent/CN109289432A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614738A (en) * | 2012-04-01 | 2012-08-01 | 河北天龙彩印有限公司 | Organic waste gas desorption process |
| CN103585854A (en) * | 2013-10-29 | 2014-02-19 | 嘉园环保股份有限公司 | Technology for recovering and processing organic exhaust gas by activated carbon adsorption and N2 desorption |
| AU2015269515A1 (en) * | 2014-06-04 | 2017-01-05 | Kabushiki Kaisha Toshiba | Carbon dioxide recovery device, and method for treating exhaust gas |
| CN104958995A (en) * | 2015-06-23 | 2015-10-07 | 江苏中远环保科技有限公司 | Technology and device for treating organic waste gas with activated carbon by means of nitrogen heating and vacuum desorption |
| CN204768144U (en) * | 2015-07-10 | 2015-11-18 | 张家港市三星净化设备制造有限公司 | Adsorption recovery device of organic waste gas |
| CN106731484A (en) * | 2017-01-25 | 2017-05-31 | 华东理工大学 | A kind of industrial waste gas VOC recovery methods and its recovery system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494993A (en) * | 2020-12-28 | 2021-03-16 | 大连福佳·大化石油化工有限公司 | Adsorption tower stripping system and stripping method thereof |
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