CN109482165A - The desorption and regeneration and its tail gas treatment process of the adsorbent of organic matter in adsorbed water body - Google Patents
The desorption and regeneration and its tail gas treatment process of the adsorbent of organic matter in adsorbed water body Download PDFInfo
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- CN109482165A CN109482165A CN201811311879.6A CN201811311879A CN109482165A CN 109482165 A CN109482165 A CN 109482165A CN 201811311879 A CN201811311879 A CN 201811311879A CN 109482165 A CN109482165 A CN 109482165A
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- 239000003463 adsorbent Substances 0.000 title claims abstract description 56
- 238000003795 desorption Methods 0.000 title claims abstract description 50
- 238000011069 regeneration method Methods 0.000 title claims abstract description 46
- 230000008929 regeneration Effects 0.000 title claims abstract description 44
- 239000005416 organic matter Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008569 process Effects 0.000 title claims abstract description 17
- 230000001172 regenerating effect Effects 0.000 claims abstract description 82
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 7
- 239000000571 coke Substances 0.000 claims abstract description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010457 zeolite Substances 0.000 claims abstract description 7
- 238000010926 purge Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000004308 accommodation Effects 0.000 claims description 11
- 238000002791 soaking Methods 0.000 claims description 9
- 239000002250 absorbent Substances 0.000 claims description 7
- 230000002745 absorbent Effects 0.000 claims description 7
- 208000032843 Hemorrhage Diseases 0.000 claims description 5
- 208000034158 bleeding Diseases 0.000 claims description 5
- 230000000740 bleeding effect Effects 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 9
- 238000003763 carbonization Methods 0.000 abstract description 6
- 230000003213 activating effect Effects 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 241000555268 Dendroides Species 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- 230000008439 repair process Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 42
- 238000005336 cracking Methods 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001722 carbon compounds Chemical class 0.000 description 2
- CVSVTCORWBXHQV-UHFFFAOYSA-N creatine Chemical compound NC(=[NH2+])N(C)CC([O-])=O CVSVTCORWBXHQV-UHFFFAOYSA-N 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
- B01J20/3466—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase with steam
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention provides the treatment process of a kind of desorption and regeneration technique adsorbed after being dissolved in adsorbent (including active carbon, activated coke, zeolite etc.) adsorption saturation of organic matter in water body 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 (packet for adsorbing organic matter soluble in water
Include active carbon, activated coke, zeolite etc.) desorption and regeneration technique and desorption and regeneration process generate after adsorption saturation vent gas treatment
Technique.
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 the desorption and regeneration and its tail gas treatment process of the adsorbent of organic matter in adsorbed water body, existing to solve
There is the problem of effect of adsorbent reactivation existing for technology is poor, safety is poor, tail gas bad processing.
In order to solve the above technical problems, the present invention provides the desorption and regeneration and its tail of the adsorbent of organic matter in adsorbed water body
Gas disposal technique, including vapor injection system, regenerating tank, exhaust treatment system, the vapor injection system include superheated steam
Generator, main steam line, secondary vapor pipeline and nozzle.Wherein, the accommodation space that is provided in the regenerating tank and described
Several secondary vapor pipelines is provided in accommodation space, one end of the secondary vapor pipeline is connected by the main steam line
It is connected on the superheated steam generator and the other end is provided with the nozzle, be provided with offgas outlet and pressure in the regenerating tank
Contracting air intake and the compressed air inlet are located at the top of the regenerating tank, and the offgas outlet is connected by exhaust pipe
To exhaust treatment system.
The desorption and regeneration and its tail gas treatment process of the adsorbent of organic matter in adsorbed water body, comprising the following steps:
The first step, bleeding stage after the drain outlet of tank to be regenerated not there are flowing out, are passed through pressure by compressed air inlet
Contracting air all removes the moisture content of absorbent interior；
Second step, heating heating volatilization period, closes compressed air inlet and drain outlet, opens main steam line and tail
Superheated steam is passed through in regenerating tank by the valve in feed channel, starting superheated steam generator, and exhaust pipe leads to vent gas treatment system
In system, the pressure in regenerating tank is maintained at 0.1~2bar, and the temperature in regenerating tank is 200 DEG C~800 DEG C ranges, can basis
It needs to be arranged；
Third step, holding stage need to be continually fed into superheated steam after the temperature in regenerating tank reaches the temperature of setting
It is kept the temperature, soaking time is 0.5 hour or more；
Temperature in regenerating tank after holding stage, is adjusted to 100~200 DEG C by the 4th 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 time that is passed through of compressed air is 0.25~2 hour in the first step.
Preferably, the temperature in the second 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 third step.
Preferably, the time of low temperature purge stages is 0.2~3 hour in the 4th step.
Preferably, the adsorbent includes active carbon, activated coke, zeolite.
Bring of the present invention is the utility model has the advantages that the desorption of the adsorbent of organic matter is again in a kind of adsorbed water body provided by the invention
Raw and its tail gas treatment device is by setting vapor injection system, regenerating tank, exhaust treatment system, by desorption and regeneration in regenerating tank
It carries out, strict temperature control and pressure improve the efficiency and safety in utilization of adsorbent desorption and regeneration.Have in adsorbed water body
In the desorption and regeneration and its tail gas treatment process of the adsorbent of machine object, first the moisture content of absorbent interior is all removed, then heats up
Heating volatilization, again soak, elevated temperature desorption or Pintsch process, carbonization desorption, last low temperature purge small part carbide
The overheated steam continued into residual organic matter is purged from active carbon hole and is brought out, so that adsorbent be made to be lived
Change regeneration.The temperature value of adsorbent desorption and regeneration is determined according to the characteristic of organic matter processed, have cracking require or only
Need to be desorbed not crack two kinds of situations, have the case where cracking requires just to set according to the specific cracking temperature of object processed
Temperature value, only need to be desorbed the case where not cracking just sets desorption temperature.
Detailed description of the invention
Fig. 1 is the vent gas treatment work of adsorbent desorption and regeneration technique and desorption and regeneration according to a first embodiment of the present invention
The overall structure diagram of skill.
Fig. 2 is the vent gas treatment work of adsorbent desorption and regeneration technique and desorption and regeneration according to a second embodiment of the present invention
The overall structure diagram of skill.
Fig. 3 is the vent gas treatment work of adsorbent desorption and regeneration technique and desorption and regeneration according to a third embodiment of the present invention
The overall structure diagram of skill.
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, 9- fire arrester.
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, in a kind of adsorbed water body provided by the invention the adsorbent of organic matter desorption and regeneration and its tail gas
Processing equipment includes vapor injection system, regenerating tank 2, exhaust treatment system.Wherein, the vapor injection system includes that overheat is steamed
Vapour generator 101, main steam line 102, secondary vapor pipeline 103 and nozzle, the accommodation space being 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 described
Main steam line 102 is connected on the superheated steam generator 101 and the other end is provided with the nozzle, the regenerating tank 2
On be provided with offgas outlet and compressed air inlet and the compressed air inlet and be located at the top of the regenerating tank 2, the tail
Gas outlet is connected to exhaust treatment system by exhaust pipe.
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.
The desorption and regeneration and its tail gas treatment process of the adsorbent of organic matter in a kind of adsorbed water body provided in this embodiment,
The following steps are included:
The first step, bleeding stage are passed through after the drain outlet of tank 2 to be regenerated not there are flowing out by compressed air inlet
Compressed air all removes the moisture content of absorbent interior, and the time that is passed through of compressed air is 0.25~2 hour.
Second step, heating heating volatilization period, closes compressed air inlet and drain outlet, opens main steam line and tail
Valve in feed channel starts superheated steam generator 101, and overheated steam is rapidly heated to 200~1000 DEG C of set temperature, passes through
Pre-buried vapor injection system enters in regenerating tank in regenerating tank, heats to adsorbent in regenerating tank.Exhaust pipe leads to tail
In gas processing system, the pressure in regenerating tank 2 is maintained at 0.1~2bar, and the temperature in regenerating tank 2 is 200 DEG C~800 DEG C models
It encloses, can according to need setting.This specific set temperature value is to determine there is cracking according to the characteristic of organic matter processed
It is required that the case where just carry out set temperature value according to the specific cracking temperature of object processed.
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.
Third 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 the 4th 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.
Second embodiment:
As shown in Fig. 2, in a kind of adsorbed water body provided by the invention the adsorbent of organic matter desorption and regeneration and its tail gas
Processing equipment includes vapor injection system, regenerating tank 2, exhaust treatment system, and the vapor injection system includes superheated steam hair
Raw device 101, main steam line 102, secondary vapor pipeline 103 and nozzle.Wherein, the receiving being provided in the regenerating tank 2 is empty
Between and the accommodation space in be provided with several secondary vapor pipelines 103, one end of the secondary vapor pipeline 103 passes through institute
State that main steam line 102 is connected on the superheated steam generator 101 and the other end is provided with the nozzle, the regenerating tank
It is provided with offgas outlet and compressed air inlet and the compressed air inlet on 2 and is located at the top of the regenerating tank 2, the tail
Gas outlet is connected to exhaust treatment system by exhaust pipe.
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, 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 the fire arrester, the liquid of the drop separator 7
Body output end is connect with the sink 8, and the sink 8 is connected to the water inlet end of the combustion chamber 6, the output end of the fire arrester
It is connected to the inlet end of combustion chamber 6, the offgas outlet of the regenerating tank 2 is connected to the drop separator 7 by exhaust pipe
On, air and LNG pass through air intlet respectively and LNG import enters in the combustion chamber 6, and the top of the combustion chamber 6 is arranged
There is chimney.
The desorption and regeneration and its tail gas treatment process of the adsorbent of organic matter in a kind of adsorbed water body provided in this embodiment,
The following steps are included:
The first step, bleeding stage are passed through after the drain outlet of tank 2 to be regenerated not there are flowing out by compressed air inlet
Compressed air all removes the moisture content of absorbent interior, and the time that is passed through of compressed air is 0.25~2 hour.
Second step, heating heating volatilization period, closes compressed air inlet and drain outlet, opens main steam line and tail
Valve in feed channel starts superheated steam generator 101, and overheated steam is rapidly heated to 200~1000 DEG C of set temperature, passes through
Pre-buried vapor injection system enters in regenerating tank in regenerating tank, heats to adsorbent in regenerating tank.Exhaust pipe leads to tail
In gas processing system, the pressure in regenerating tank 2 is maintained at 0.1~2bar, and the temperature in regenerating tank 2 is 200 DEG C~800 DEG C models
It encloses, can according to need setting.This specific set temperature value is to determine there is cracking according to the characteristic of organic matter processed
It is required that need to only be desorbed and not crack two kinds of situations, have the case where cracking requires just according to the specific cracking of object processed
Temperature carrys out set temperature value, and only need to be desorbed the case where not cracking just sets desorption temperature.
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.
Third 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 the 4th 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, in a kind of adsorbed water body provided by the invention the adsorbent of organic matter desorption and regeneration and its tail gas
Processing equipment includes vapor injection system, regenerating tank 2, exhaust treatment system, and the vapor injection system includes superheated steam hair
Raw device 101, main steam line 102, secondary vapor pipeline 103 and nozzle.Wherein, the receiving being provided in the regenerating tank 2 is empty
Between and the accommodation space in be provided with several secondary vapor pipelines 103, one end of the secondary vapor pipeline 103 passes through institute
State that main steam line 102 is connected on the superheated steam generator 101 and the other end is provided with the nozzle, the regenerating tank
It is provided with offgas outlet and compressed air inlet and the compressed air inlet on 2 and is located at the top of the regenerating tank 2, the tail
Gas outlet is connected to exhaust treatment system by exhaust pipe.
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, fire arrester, sink 8 and combustion chamber
6, the gas output end of the drop separator 7 is connect with the input terminal of the fire arrester, and the liquid of the drop separator 7 is defeated
Outlet is connect with the sink 8, and the sink 8 is connected to the water inlet end of the combustion chamber 6, the output end connection of the fire arrester
To the inlet end of combustion chamber 6, the offgas outlet of the regenerating tank 2 is connected to the entrance of the condenser pipe 3, institute by exhaust pipe
The outlet for stating 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 inlet
301 and cooling water outlet 302, it is last that condensed water in the hot well 4 by the water pump 5 is transported to vapourizing unit
Into on the drop separator 7, air and LNG pass through air intlet respectively and LNG import enters in the combustion chamber 6, institute
The top for stating combustion chamber 6 is provided with chimney.
The desorption and regeneration and its vent gas treatment work of the adsorbent of organic matter in a kind of adsorbed water body that the present embodiment type provides
Skill, comprising the following steps:
The first step, bleeding stage are passed through after the drain outlet of tank 2 to be regenerated not there are flowing out by compressed air inlet
Compressed air all removes the moisture content of absorbent interior, and the time that is passed through of compressed air is 0.25~2 hour.
Second step, heating heating volatilization period, closes compressed air inlet and drain outlet, opens main steam line and tail
Valve in feed channel starts superheated steam generator 101, and overheated steam is rapidly heated to 200~1000 DEG C of set temperature, passes through
Pre-buried vapor injection system enters in regenerating tank in regenerating tank, heats to adsorbent in regenerating tank.Exhaust pipe leads to tail
In gas processing system, the pressure in regenerating tank 2 is maintained at 0.1~2bar, and the temperature in regenerating tank 2 is 200 DEG C~800 DEG C models
It encloses, can according to need setting.This specific set temperature value is determined according to the characteristic of organic matter processed, need to only be taken off
Attached the case where not cracking, just sets 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.
Third 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 the 4th 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.
In conclusion in a kind of adsorbed water body provided by the invention at the desorption and regeneration and its tail gas of the adsorbent of organic matter
Equipment is managed by setting vapor injection system, regenerating tank, exhaust treatment system, desorption and regeneration is carried out in regenerating tank, it is stringent to control
Temperature and pressure processed improves the efficiency and safety in utilization of adsorbent desorption and regeneration.The absorption of organic matter in adsorbed water body
In the desorption and regeneration and its tail gas treatment process of agent, first the moisture content of absorbent interior is all removed, then the heating that heats up is volatilized, again
Soak, elevated temperature desorption or Pintsch process, carbonization desorption, last low temperature purge small part carbide and residual organic matter
The overheated steam continued into is purged from active carbon hole and is brought out, so that adsorbent be made to obtain activating and regenerating.Absorption
The temperature value of agent desorption and regeneration is determined according to the characteristic of organic matter processed, has cracking to require or need to only be desorbed and not split
Two kinds of situations are solved, have the case where cracking requires just to carry out set temperature value according to the specific cracking temperature of object processed, are only needed
The case where desorption not crack just sets 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 (7)
1. the desorption and regeneration and its tail gas treatment device of the adsorbent of organic matter in a kind of adsorbed water body, which is characterized in that 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, the accommodation space being provided in the regenerating tank (2) and described
Several secondary vapor pipelines (103) is provided in 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, the regenerating tank
(2) it is provided with offgas outlet and compressed air inlet and the compressed air inlet on and is located at the top of the regenerating tank (2), institute
It states offgas outlet and exhaust treatment system is connected to by exhaust pipe.
2. the desorption and regeneration and its tail gas treatment process of the adsorbent of organic matter in a kind of adsorbed water body, which is characterized in that including
Following steps:
The first step, bleeding stage are passed through pressure by compressed air inlet after the drain outlet of tank (2) to be regenerated not there are flowing out
Contracting air all removes the moisture content of absorbent interior；
Second step, heating heating volatilization period, closes compressed air inlet and drain outlet, opens main steam line and offgas duct
Hot steam is passed through in regenerating tank (2) by the valve on road, starting superheated steam generator (101), and exhaust pipe leads to vent gas treatment
In system, the pressure in regenerating tank (2) is maintained at 0.1~2bar, and the temperature in regenerating tank (2) is 200 DEG C~800 DEG C ranges,
It can according to need setting；
Third 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 the 4th 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 desorption and regeneration and its tail gas treatment device of the adsorbent of organic matter in adsorbed water body as claimed in claim 2,
It is characterized in that, the time that is passed through of compressed air is 0.25~2 hour in the first step.
4. the desorption and regeneration and its tail gas treatment device of the adsorbent of organic matter in adsorbed water body as claimed in claim 2,
It is characterized in that, the temperature in the second step in regenerating tank (2) is 250 DEG C, 340 DEG C, 380 DEG C, 400 DEG C, 450 DEG C, 600
℃、800℃。
5. the desorption and regeneration and its tail gas treatment device of the adsorbent of organic matter in adsorbed water body as claimed in claim 2,
It is characterized in that, soaking time is 0.5~24 hour in the third step.
6. the desorption and regeneration and its tail gas treatment device of the adsorbent of organic matter in adsorbed water body as claimed in claim 2,
It is characterized in that, the time of low temperature purge stages is 0.2~3 hour in the 4th step.
7. the desorption and regeneration and its vent gas treatment of the adsorbent of organic matter in the adsorbed water body as described in claim 2~6 is any
Equipment, which is characterized in that the adsorbent includes active carbon, activated coke, zeolite.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811311879.6A CN109482165A (en) | 2018-11-06 | 2018-11-06 | The desorption and regeneration and its tail gas treatment process of the adsorbent of organic matter in adsorbed water body |
| PCT/CN2019/070293 WO2020093583A1 (en) | 2018-11-06 | 2019-01-03 | Desorption regeneration process for adsorbent adsorbing organics in water, and tail gas treatment process therefor |
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