CN109482036A - A kind of adsorption treatment of organic exhaust gas and its desorption and regeneration technique of adsorbent - Google Patents
A kind of adsorption treatment of organic exhaust gas and its desorption and regeneration technique of adsorbent Download PDFInfo
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- CN109482036A CN109482036A CN201811311888.5A CN201811311888A CN109482036A CN 109482036 A CN109482036 A CN 109482036A CN 201811311888 A CN201811311888 A CN 201811311888A CN 109482036 A CN109482036 A CN 109482036A
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- adsorbent
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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
- 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
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
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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
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention provides the treatment process of a kind of desorption and regeneration technique adsorbed in organic exhaust gas after adsorbent (including active carbon, activated coke, zeolite etc.) adsorption saturation of organic matter and the tail gas generated during desorption and regeneration.Adsorbent carries out desorption and regeneration in the regenerating tank for being embedded with vapor injection system, vapor injection system includes main steam line and several dendroid secondary vapor pipelines for being set on main steam line, every secondary vapor pipeline is equipped with steam jet, and vapor injection system is adsorbed agent embedding.It is passed through superheated vapor to heat adsorbent in regenerating tank, the adsorbed most of organic matter of adsorbent is desorbed by elevated temperature desorption or by Pintsch process, carbonization, and removes organic matter and carbide in adsorbent hole with steam blowing, makes adsorbent activating and regenerating.The tail gas generated in regenerative process first condenses burning disposal equipment again and is handled through tail gas treatment device, specially tail gas condensing processing equipment, tail gas burning disposal equipment or tail gas.
Description
Technical field
The present invention relates to a kind of desorption and regeneration fields, and in particular to a kind of adsorbent for adsorbing organic matter in organic exhaust gas
At the tail gas that desorption and regeneration technique and desorption and regeneration process generate after (including active carbon, activated coke, zeolite etc.) adsorption saturation
Science and engineering skill.
Background technique
Active carbon has very big specific surface area, has stronger adsorption capacity to a variety of organic and inorganic substances, therefore wide
It is general for various exhaust gas, waste water adsorption cleaning treatment process in and some mixtures separating treatment process, such as hydrocarbon-containifirst
The adsorption cleaning of exhaust gas, the adsorption cleaning of sulfur-containing compound exhaust air, adsorption cleaning of oily wastewater etc..
In adsorption treatment process, regeneration treatment is needed after activated carbon adsorption saturation.Regeneration method mainly includes two kinds, and one
Kind is vacuum regeneration, i.e., is desorbed out by the substance being adsorbed in active carbon duct under vacuum conditions；Another regeneration method
For steam regeneration, i.e., the substance being adsorbed in active carbon duct is desorbed with steam.In steam regeneration technique, generally require by
It after active carbon bed temperature drops to a certain degree, then is dried with air, is directly easily pacified with being air-dried under high temperature
Full accident, and the toxic and harmful gas generated after regenerating active carbon is directly released into environment and can cause environmental pollution.
Summary of the invention
The present invention provides a kind of adsorption treatment of organic exhaust gas and its desorption and regeneration technique of adsorbent, is deposited with the prior art
Adsorbent absorption and desorption and regeneration separate the problem of.
In order to solve the above technical problems, the present invention provide a kind of organic exhaust gas adsorption treatment and its adsorbent desorption again
Raw equipment, including vapor injection system, regenerating tank, exhaust treatment system, the vapor injection system include superheated steam hair
Raw device, main steam line, secondary vapor pipeline and nozzle.Wherein, the accommodation space and the appearance being provided in the regenerating tank
It receives and is provided with several secondary vapor pipelines in space, one end of the secondary vapor pipeline is connected by the main steam line
On to the superheated steam generator and the other end is provided with the nozzle.Offgas outlet and purification are provided in the regenerating tank
Gas outlet and the clean gas outlet are located at the lower part of the regenerating tank, and the offgas outlet is connected to tail gas by exhaust pipe
Processing system, organic exhaust gas are connected to the exhaust gas entrance at the top of the regenerating tank by the second fire arrester.
A kind of adsorption treatment of organic exhaust gas and its desorption and regeneration technique of adsorbent, comprising the following steps:
The first step, heating heating volatilization period close exhaust gas entrance and purified gas after adsorbent adsorbs organic exhaust gas saturation
The valve on main steam line and exhaust pipe is opened in outlet, and hot steam is passed through in regenerating tank by starting superheated steam generator, tail
Feed channel is led in exhaust treatment system, and the pressure in regenerating tank is maintained at 0.1~2bar, and the temperature in regenerating tank is 200 DEG C
~800 DEG C of ranges, can according to need setting；
Second step, holding stage, after the temperature in regenerating tank reaches the temperature of setting, need to be continually fed into hot steam into
Row heat preservation, soaking time are 0.5 hour or more；
Temperature in regenerating tank after holding stage, is adjusted to 100~200 DEG C by third step, low temperature purge stages,
Pressure in regenerating tank is maintained at 0.1~2bar, and the time of low temperature purging is 0.2~3 hour.
Preferably, the temperature in the first step in regenerating tank be 250 DEG C, 340 DEG C, 380 DEG C, 400 DEG C, 450 DEG C,
600℃、800℃。
Preferably, soaking time is 0.5~24 hour in the second step.
Preferably, the time of low temperature purge stages is 0.2~3 hour in the third step.
Preferably, the adsorbent includes active carbon, activated coke, zeolite.
Bring of the present invention is the utility model has the advantages that a kind of adsorption treatment of organic exhaust gas provided by the invention and its taking off for adsorbent
Attached regenerated equipment is carried out by setting vapor injection system, regenerating tank, exhaust treatment system, by desorption and regeneration in regenerating tank,
Strict temperature control and pressure improve the efficiency and safety in utilization of adsorbent desorption and regeneration.At the absorption of organic exhaust gas
Reason and its adsorbent desorption and regeneration technique in, first by the harmful substance in organic exhaust gas in regenerating tank Adsorption, work as suction
Regeneration treatment is carried out to adsorbent after attached dose of saturation.The desorption and regeneration of adsorbent includes heating heating volatilization, soak, height again
Temperature desorption or Pintsch process, carbonization desorption, last low temperature purge small part carbide and residual organic matter are continued into
Overheated steam purge and bring out from active carbon hole, so that adsorbent be made to obtain activating and regenerating.Adsorbent desorption and regeneration
Temperature value be to be determined according to the characteristic of organic matter processed, there is cracking to require or need to only be desorbed and not crack two kinds of feelings
Condition has the case where cracking requires just to carry out set temperature value according to the specific cracking temperature of object processed, and need to only be desorbed should not
The case where cracking, just sets desorption temperature.
Detailed description of the invention
Fig. 1 is setting for the adsorption treatment of organic exhaust gas according to a first embodiment of the present invention and its desorption and regeneration of adsorbent
Standby overall structure diagram.
Fig. 2 is setting for the adsorption treatment of organic exhaust gas according to a second embodiment of the present invention and its desorption and regeneration of adsorbent
Standby overall structure diagram.
Fig. 3 is setting for the adsorption treatment of organic exhaust gas according to a third embodiment of the present invention and its desorption and regeneration of adsorbent
Standby overall structure diagram.
Wherein, 101- superheated steam generator, 102- main steam line, 103- secondary vapor pipeline, 2- regenerating tank, 3- are cold
Solidifying pipe, the cooling water inlet 301-, 302- cooling water outlet, 4- hot well, 5- water pump, the combustion chamber 6-, the separation of 7- water droplet
Device, 8- sink, the first fire arrester of 9-, the second fire arrester of 10-.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and the specific embodiments, to this
Invention is described in further detail.
First embodiment:
As shown in Figure 1, a kind of desorption and regeneration of the adsorption treatment and its adsorbent of organic exhaust gas provided by the invention is set
It is standby, including vapor injection system, regenerating tank 2, exhaust treatment system, the vapor injection system include superheated steam generator
101, main steam line 102, secondary vapor pipeline 103 and nozzle.Wherein, the accommodation space that is provided in the regenerating tank 2 and
Several secondary vapor pipelines 103 is provided in the accommodation space, one end of the secondary vapor pipeline 103 passes through the master
Jet chimney 102 is connected on the superheated steam generator 101 and the other end is provided with the nozzle.In the regenerating tank 2
It is provided with offgas outlet and clean gas outlet and the clean gas outlet is located at the lower part of the regenerating tank 2, the offgas outlet
It is connected to exhaust treatment system by exhaust pipe, organic exhaust gas is connected to 2 top of regenerating tank by the second fire arrester 10
Exhaust gas entrance.
Furthermore, it is understood that the secondary vapor pipeline 103 is tree.The regenerating tank 2 includes tank body and cover, institute
It states cover enclosing cover to close in the top of the tank body, the bottom end of the regenerating tank 2 is provided with drain outlet, the regenerating tank 2
Temperature inductor and pressure inductor are provided in accommodation space.It is arranged on the main steam line 102 and the exhaust pipe
There is valve.
In the present embodiment, tail gas condensing is handled, and can be used for the tail gas of cleavable carbonization.The exhaust treatment system includes
The offgas outlet of condenser pipe 3, hot well 4, the regenerating tank 2 is connected to entering for the condenser pipe 3 by exhaust pipe
Mouthful, the outlet of the condenser pipe 3 is connected to the hot well 4, and the both ends of the condenser pipe 3 are respectively arranged with cooling water
Entrance 301 and cooling water outlet 302.
A kind of adsorption treatment of organic exhaust gas provided in this embodiment and its desorption and regeneration technique of adsorbent, including it is following
Step:
The first step, heating heating volatilization period close exhaust gas entrance and purified gas after adsorbent adsorbs organic exhaust gas saturation
The valve on main steam line 102 and exhaust pipe is opened in outlet, starts superheated steam generator 101, overheated steam quickly rises
Temperature is to 200~1000 DEG C of set temperature, and pre-buried vapor injection system enters in regenerating tank in regenerating tank, in regenerating tank
Adsorbent heating.Exhaust pipe is led in exhaust treatment system, and the pressure in regenerating tank 2 is maintained at 0.1~2bar, regenerating tank 2
Interior temperature is 200 DEG C~800 DEG C ranges, can according to need setting.This specific set temperature value is according to processed
The characteristic of organic matter determines to have the case where cracking requires just to carry out set temperature according to the specific cracking temperature of object processed
Value.
Special temperature is 380 DEG C, 400 DEG C, 600~800 DEG C, 380 DEG C can crack contain in removal adsorbent containing C
Pyrolysate, 400 DEG C can crack the organic compound of C-O and C-N key contained in removal adsorbent, and 400~800 DEG C can be with
The carbon compound contained in carbonization removal adsorbent.
Second step, holding stage need to be continually fed into hot steam after the temperature in regenerating tank 2 reaches the temperature of setting
It is kept the temperature, soaking time is 0.5 hour or more, and special soaking time is 1 hour.
Temperature in regenerating tank 2 after holding stage, is adjusted to 100~200 DEG C by third step, low temperature purge stages,
Pressure in regenerating tank 2 is maintained at 0.1~2bar, and the time of low temperature purging is 0.2~3 hour, special low temperature purge stages
Time be 0.2~3 hour.The overheated steam that small part carbide and residual organic matter are continued into is from active carbon hole
Middle purging is brought out, so that adsorbent be made to obtain activating and regenerating.Purging is completed, and the valve on main steam line 102 is closed, naturally cold
But.
The adsorbent includes active carbon, activated coke, zeolite.
Second embodiment:
As shown in Fig. 2, a kind of desorption and regeneration of the adsorption treatment and its adsorbent of organic exhaust gas provided by the invention is set
Standby includes vapor injection system, regenerating tank 2, exhaust treatment system, and the vapor injection system includes superheated steam generator
101, main steam line 102, secondary vapor pipeline 103 and nozzle.Wherein, the accommodation space that is provided in the regenerating tank 2 and
Several secondary vapor pipelines 103 is provided in the accommodation space, one end of the secondary vapor pipeline 103 passes through the master
Jet chimney 102 is connected on the superheated steam generator 101 and the other end is provided with the nozzle.In the regenerating tank 2
It is provided with offgas outlet and clean gas outlet and the clean gas outlet is located at the lower part of the regenerating tank 2, the offgas outlet
It is connected to exhaust treatment system by exhaust pipe, organic exhaust gas is connected to 2 top of regenerating tank by the second fire arrester 10
Exhaust gas entrance.
Furthermore, it is understood that the secondary vapor pipeline 103 is tree.The regenerating tank 2 includes tank body and cover, institute
It states cover enclosing cover to close in the top of the tank body, the bottom end of the regenerating tank 2 is provided with drain outlet, the regenerating tank 2
Temperature inductor and pressure inductor are provided in accommodation space.It is arranged on the main steam line 102 and the exhaust pipe
There is valve.
In the present embodiment, the direct burning disposal of tail gas can be used for that the tail gas not cracked need to only be desorbed.The vent gas treatment
System includes tail gas burning disposal equipment, and the tail gas burning disposal equipment includes drop separator 7, the first fire arrester, sink 8
With combustion chamber 6, the gas output end of the drop separator 7 is connect with the input terminal of first fire arrester, the water droplet point
Fluid output port from device 7 is connect with the sink 8, and the sink 8 is connected to the water inlet end of the combustion chamber 6, and described first
The output end of fire arrester is connected to the inlet end of combustion chamber 6, and the offgas outlet of the regenerating tank 2 is connected to institute by exhaust pipe
It states on drop separator 7, air and LNG pass through air intlet respectively and LNG import enters in the combustion chamber 6, the burning
The top of room 6 is provided with chimney.
A kind of adsorption treatment of organic exhaust gas provided in this embodiment and its desorption and regeneration technique of adsorbent, including it is following
Step:
The first step, heating heating volatilization period close exhaust gas entrance and purified gas after adsorbent adsorbs organic exhaust gas saturation
The valve on main steam line 102 and exhaust pipe is opened in outlet, starts superheated steam generator 101, overheated steam quickly rises
Temperature is to 200~1000 DEG C of set temperature, and pre-buried vapor injection system enters in regenerating tank in regenerating tank, in regenerating tank
Adsorbent heating.Exhaust pipe is led in exhaust treatment system, and the pressure in regenerating tank 2 is maintained at 0.1~2bar, regenerating tank 2
Interior temperature is 200 DEG C~800 DEG C ranges, can according to need setting.This specific set temperature value is according to processed
For the characteristic of organic matter to determine, having to crack requirement or need to only be desorbed not crack two kinds of situations, have the case where cracking requires just
Carry out set temperature value according to the specific cracking temperature of object processed, the case where not cracking need to only be desorbed, and just set desorption warm
Degree.
Special temperature is 250 DEG C and 340 DEG C, and 250 DEG C can remove the oxygen, sulphur, CO contained in adsorbent2, hour2S etc.
Small molecule inorganic matter, 340 DEG C can remove the small organic molecules such as the fat contained in adsorbent, formaldehyde.
Second step, holding stage need to be continually fed into hot steam after the temperature in regenerating tank 2 reaches the temperature of setting
It is kept the temperature, soaking time is 0.5 hour or more.
Temperature in regenerating tank 2 after holding stage, is adjusted to 100~200 DEG C by third step, low temperature purge stages,
Pressure in regenerating tank 2 is maintained at 0.1~2bar, and the time of low temperature purging is 0.2~3 hour, special low temperature purge stages
Time be 0.2~3 hour.The overheated steam that small part carbide and residual organic matter are continued into is from active carbon hole
Middle purging is brought out, so that adsorbent be made to obtain activating and regenerating.Purging is completed, and main steam line, natural cooling are closed.
The adsorbent includes active carbon, activated coke, zeolite.
3rd embodiment:
As shown in figure 3, a kind of desorption and regeneration of the adsorption treatment and its adsorbent of organic exhaust gas provided by the invention is set
Standby includes vapor injection system, regenerating tank 2, exhaust treatment system, and the vapor injection system includes superheated steam generator
101, main steam line 102, secondary vapor pipeline 103 and nozzle.Wherein, the accommodation space that is provided in the regenerating tank 2 and
Several secondary vapor pipelines 103 is provided in the accommodation space, one end of the secondary vapor pipeline 103 passes through the master
Jet chimney 102 is connected on the superheated steam generator 101 and the other end is provided with the nozzle.In the regenerating tank 2
It is provided with offgas outlet and clean gas outlet and the clean gas outlet is located at the lower part of the regenerating tank 2, the offgas outlet
It is connected to exhaust treatment system by exhaust pipe, organic exhaust gas is connected to 2 top of regenerating tank by the second fire arrester 10
Exhaust gas entrance.
Furthermore, it is understood that the secondary vapor pipeline 103 is tree.The regenerating tank 2 includes tank body and cover, institute
It states cover enclosing cover to close in the top of the tank body, the bottom end of the regenerating tank 2 is provided with drain outlet, the regenerating tank 2
Temperature inductor and pressure inductor are provided in accommodation space.It is arranged on the main steam line 102 and the exhaust pipe
There is valve.
In the present embodiment, tail gas is first condensed and is burned again, and the exhaust treatment system includes condenser pipe 3, condensation water collection
Slot 4, water pump 5, vapourizing unit, tail gas burning disposal equipment, vapourizing unit setting is in the hot well 4 and described
Between tail gas burning disposal equipment, the tail gas burning disposal equipment includes drop separator 7, the first fire arrester, sink 8 and combustion
Room 6 is burnt, the gas output end of the drop separator 7 is connect with the input terminal of first fire arrester, the drop separator 7
Fluid output port connect with the sink 8, the sink 8 is connected to the water inlet end of the combustion chamber 6, first fire arrester
Output end be connected to the inlet end of combustion chamber 6, the offgas outlet of the regenerating tank 2 is connected to the condensation by exhaust pipe
The entrance of pipe 3, the outlet of the condenser pipe 3 are connected to the hot well 4, and the both ends of the condenser pipe 3 are respectively set
There are cooling water inlet 301 and cooling water outlet 302, the condensed water in the hot well 4 is transported to by the water pump 5
Vapourizing unit finally enters on the drop separator 7, and air and LNG pass through respectively described in air intlet and LNG import entrance
In combustion chamber 6, the top of the combustion chamber 6 is provided with chimney.
A kind of adsorption treatment for organic exhaust gas that the present embodiment type provides and its desorption and regeneration technique of adsorbent, including with
Lower step:
The first step, heating heating volatilization period close exhaust gas entrance and purified gas after adsorbent adsorbs organic exhaust gas saturation
The valve on main steam line 102 and exhaust pipe is opened in outlet, starts superheated steam generator 101, overheated steam quickly rises
Temperature is to 200~1000 DEG C of set temperature, and pre-buried vapor injection system enters in regenerating tank in regenerating tank, in regenerating tank
Adsorbent heating.Exhaust pipe is led in exhaust treatment system, and the pressure in regenerating tank 2 is maintained at 0.1~2bar, regenerating tank 2
Interior temperature is 200 DEG C~800 DEG C ranges, can according to need setting.This specific set temperature value is according to processed
The characteristic of organic matter determines, need to only be desorbed the case where not cracking and just set desorption temperature.
Special temperature is 380 DEG C, 400 DEG C, 600~800 DEG C, 380 DEG C can crack contain in removal adsorbent containing C
Pyrolysate, 400 DEG C can crack the organic compound of C-O and C-N key contained in removal adsorbent, and 400~800 DEG C can be with
The carbon compound contained in carbonization removal adsorbent.
Second step, holding stage need to be continually fed into hot steam after the temperature in regenerating tank 2 reaches the temperature of setting
It is kept the temperature, soaking time is 0.5 hour or more, and special soaking time is 0.5 hour.
Temperature in regenerating tank 2 after holding stage, is adjusted to 100~200 DEG C by third step, low temperature purge stages,
Pressure in regenerating tank 2 is maintained at 0.1~2bar, and the time of low temperature purging is 0.2~3 hour, special low temperature purge stages
Time be 0.2~3 hour.The overheated steam that small part carbide and residual organic matter are continued into is from active carbon hole
Middle purging is brought out, so that adsorbent be made to obtain activating and regenerating.Purging is completed, and the valve on main steam line, natural cooling are closed.
The adsorbent includes active carbon, activated coke, zeolite.
In conclusion a kind of equipment of the desorption and regeneration of the adsorption treatment and its adsorbent of organic exhaust gas provided by the invention
By the way that vapor injection system, regenerating tank, exhaust treatment system is arranged, desorption and regeneration is carried out in regenerating tank, strict temperature control
And pressure, improve the efficiency and safety in utilization of adsorbent desorption and regeneration.In the adsorption treatment and its adsorbent of organic exhaust gas
Desorption and regeneration technique in, first by the harmful substance in organic exhaust gas in regenerating tank Adsorption, when adsorbent saturation after it is right
Adsorbent carries out regeneration treatment.The desorption and regeneration of adsorbent includes heating heating volatilization, again soak, elevated temperature desorption or high temperature
Cracking, carbonization desorption, the overheated steam that last low temperature purge small part carbide and residual organic matter are continued into
It purges and brings out from active carbon hole, so that adsorbent be made to obtain activating and regenerating.The temperature value of adsorbent desorption and regeneration is root
Determine there is cracking to require or need to only be desorbed not crack two kinds of situations, there is cracking to require according to the characteristic of organic matter processed
The case where just carry out set temperature value according to the specific cracking temperature of object processed, only need to be desorbed the case where not cracking and just set
Determine desorption temperature.
The above description is only an embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (6)
1. a kind of equipment of the desorption and regeneration of the adsorption treatment and its adsorbent of organic exhaust gas, which is characterized in that sprayed including steam
System, regenerating tank (2), exhaust treatment system are penetrated, the vapor injection system includes superheated steam generator (101), main steam
Pipeline (102), secondary vapor pipeline (103) and nozzle, the interior accommodation space being provided with of the regenerating tank (2) and receiving sky
Interior to be provided with several secondary vapor pipelines (103), one end of the secondary vapor pipeline (103) passes through the main steam pipe
Road (102) is connected on the superheated steam generator (101) and the other end is provided with the nozzle, on the regenerating tank (2)
It is provided with offgas outlet and clean gas outlet and the clean gas outlet is located at the lower part of the regenerating tank (2), the tail gas goes out
Mouth is connected to exhaust treatment system by exhaust pipe, and organic exhaust gas is connected to the regenerating tank by the second fire arrester (10)
(2) exhaust gas entrance at the top of.
2. a kind of adsorption treatment of organic exhaust gas and its desorption and regeneration technique of adsorbent, which comprises the following steps:
The first step, heating heating volatilization period after adsorbent adsorbs organic exhaust gas saturation, close exhaust gas entrance and purified gas go out
Mouthful, the valve on main steam line (102) and exhaust pipe is opened, hot steam is passed through again by starting superheated steam generator (101)
In raw tank (2), exhaust pipe is led in exhaust treatment system, and the pressure in regenerating tank (2) is maintained at 0.1~2bar, regenerating tank
(2) temperature in is 200 DEG C~800 DEG C ranges, can according to need setting；
Second step, holding stage, after the temperature in regenerating tank (2) reaches the temperature of setting, need to be continually fed into hot steam into
Row heat preservation, soaking time are 0.5 hour or more；
Temperature in regenerating tank (2) after holding stage, is adjusted to 100~200 DEG C by third step, low temperature purge stages, then
Pressure in raw tank (2) is maintained at 0.1~2bar, and the time of low temperature purging is 0.2~3 hour.
3. the equipment of the desorption and regeneration of the adsorption treatment and its adsorbent of organic exhaust gas as claimed in claim 2, feature exist
In the temperature in the first step in regenerating tank (2) is 250 DEG C, 340 DEG C, 380 DEG C, 400 DEG C, 450 DEG C, 600 DEG C, 800
℃。
4. the equipment of the desorption and regeneration of the adsorption treatment and its adsorbent of organic exhaust gas as claimed in claim 2, feature exist
In soaking time is 0.5~24 hour in the second step.
5. the equipment of the desorption and regeneration of the adsorption treatment and its adsorbent of organic exhaust gas as claimed in claim 2, feature exist
In the time of low temperature purge stages is 0.2~3 hour in the third step.
6. the equipment of the desorption and regeneration of the adsorption treatment and its adsorbent of the organic exhaust gas as described in claim 2~5 is any,
It is characterized in that, the adsorbent includes active carbon, activated coke, zeolite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811311888.5A CN109482036A (en) | 2018-11-06 | 2018-11-06 | A kind of adsorption treatment of organic exhaust gas and its desorption and regeneration technique of adsorbent |
| PCT/CN2019/070294 WO2020093584A1 (en) | 2018-11-06 | 2019-01-03 | Process for adsorption treatment of organic waste gas and desorption regeneration of adsorbent |
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| CN201811311888.5A CN109482036A (en) | 2018-11-06 | 2018-11-06 | A kind of adsorption treatment of organic exhaust gas and its desorption and regeneration technique of adsorbent |
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| CN111228958A (en) * | 2020-04-07 | 2020-06-05 | 索红卫 | Activated carbon adsorption and desorption method and device |
| CN111871402A (en) * | 2020-07-28 | 2020-11-03 | 宋安宁 | Sustainable cyclic utilization active carbon regeneration system and active carbon regeneration equipment |
| CN112156616A (en) * | 2020-09-15 | 2021-01-01 | 湖南化工职业技术学院（湖南工业高级技工学校） | Waste gas environmental protection handles case |
| CN113304737A (en) * | 2021-06-02 | 2021-08-27 | 湖南鼎中环保科技有限公司 | Desorption process after adsorbent adsorption saturation |
| CN113559831A (en) * | 2021-08-20 | 2021-10-29 | 西安建筑科技大学 | Vacuum thermal regeneration method for saturated activated carbon for adsorbing VOCs (volatile organic compounds) |
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| CN108970596A (en) * | 2018-08-16 | 2018-12-11 | 无锡四方集团有限公司 | The desorption and regeneration technique in situ of the adsorbent of organic matter in adsorbed water body |
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| CN101362076A (en) * | 2007-08-06 | 2009-02-11 | 中国石油化工股份有限公司 | Regeneration method of active carbon absorbent |
| CN202460413U (en) * | 2012-02-21 | 2012-10-03 | 山东科技大学 | Novel device for adsorbing and recovering activated carbon |
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| CN109432942A (en) * | 2018-12-14 | 2019-03-08 | 无锡四方集团有限公司 | A kind of desorption and regeneration equipment and technology of the adsorbent applied to VOCs treatment |
| CN109908757A (en) * | 2019-04-18 | 2019-06-21 | 国电环境保护研究院有限公司 | A kind of carbon base catalyst regenerating unit and regeneration method |
| CN111228958A (en) * | 2020-04-07 | 2020-06-05 | 索红卫 | Activated carbon adsorption and desorption method and device |
| CN111871402A (en) * | 2020-07-28 | 2020-11-03 | 宋安宁 | Sustainable cyclic utilization active carbon regeneration system and active carbon regeneration equipment |
| CN112156616A (en) * | 2020-09-15 | 2021-01-01 | 湖南化工职业技术学院（湖南工业高级技工学校） | Waste gas environmental protection handles case |
| CN113304737A (en) * | 2021-06-02 | 2021-08-27 | 湖南鼎中环保科技有限公司 | Desorption process after adsorbent adsorption saturation |
| CN113559831A (en) * | 2021-08-20 | 2021-10-29 | 西安建筑科技大学 | Vacuum thermal regeneration method for saturated activated carbon for adsorbing VOCs (volatile organic compounds) |
| CN113559831B (en) * | 2021-08-20 | 2023-10-31 | 西安建筑科技大学 | Vacuum thermal regeneration method for saturated activated carbon for adsorbing VOCs |
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