CN107008124A - A kind of system and method for handling foul gas - Google Patents
A kind of system and method for handling foul gas Download PDFInfo
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- CN107008124A CN107008124A CN201710234637.0A CN201710234637A CN107008124A CN 107008124 A CN107008124 A CN 107008124A CN 201710234637 A CN201710234637 A CN 201710234637A CN 107008124 A CN107008124 A CN 107008124A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 65
- 239000007789 gas Substances 0.000 claims abstract description 64
- 230000003647 oxidation Effects 0.000 claims abstract description 60
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 48
- 238000005406 washing Methods 0.000 claims abstract description 35
- 230000001590 oxidative effect Effects 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 25
- 239000007800 oxidant agent Substances 0.000 claims abstract description 15
- 238000000746 purification Methods 0.000 claims abstract description 6
- 238000012856 packing Methods 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 37
- 238000012545 processing Methods 0.000 claims description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 18
- 239000003513 alkali Substances 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 6
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 4
- 239000004155 Chlorine dioxide Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 239000002585 base Substances 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims description 2
- 239000003607 modifier Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims 1
- 229910001950 potassium oxide Inorganic materials 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 239000002912 waste gas Substances 0.000 abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003054 catalyst Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002351 wastewater Substances 0.000 abstract description 4
- 239000005416 organic matter Substances 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 241000238557 Decapoda Species 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 235000013332 fish product Nutrition 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000005949 ozonolysis reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/108—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/306—Alkali metal compounds of potassium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20738—Iron
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20746—Cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20753—Nickel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20761—Copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20769—Molybdenum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/70—Non-metallic catalysts, additives or dopants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/70—Non-metallic catalysts, additives or dopants
- B01D2255/702—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
Abstract
The system of foul gas is handled the invention discloses a kind of, including washing unit, low temperature plasma pre-oxidation unit and the catalysis oxidation washing unit being sequentially connected in series；Wherein, washing unit includes spray scrubber；Low temperature plasma pre-oxidation unit includes at least one plasma purification storehouse；Catalysis oxidation washing unit includes catalysis oxidizing tower, and catalysis oxidizing tower top is provided with packing layer, and bottom, which is provided with the middle part of beds, tower, is provided with gas feed, and tower top is provided with sprinkling equipment.The present invention is used in combination low temperature plasma equipment and catalysis oxidation washing facility, the former serves pre-oxidation effect, raising organic matter is water miscible while reducing subsequent catalyst oxidation washes tower load, the operating cost of oxidant can be substantially reduced, and washing process does not produce secondary wastewater pollution, whole waste gas treatment process is simple, can efficient stable and investment operating cost is low, with good practicality.
Description
Technical field
The present invention relates to environmental technology field, and in particular to a kind of technical field of foul gas processing, more specifically refers to
A kind of system of the low temperature plasma coupling and catalyzing oxidation rinsing technical finesse containing foul waste gas.
Technical background
At present, domestic rubbish disposal station, raising fish and shrimp place, all kinds of chemical plant, Treatment of Sludge station, sewage treatment plant all build
The processing system of foul smelling material, because the rotten material of planting that rubbish, sludge, industrial chemicals, raising fish and shrimp place are produced is being handled
During easily produce substantial amounts of acid, neutral, alkalescence inorganic or organic odor gas, portion gas even contains germ,
Such as it is directly discharged, will directly affect that resident is healthy and normal life, even low concentration still allows people to produce not
Suitable sense.The processing mode that such waste gas is commonly used at present is that Water spray either shelter by alkali spray or vegetation water absorption, treatment effect
Very limited and generation secondary pollution；Burning method can be handled thoroughly, but there is higher, the unsafe shortcoming of investment.
In the prior art, the method and apparatus using low-temperature plasma processing foul gas is more typical, for example：Application No.
Disclosed in CN201410395869.0, CN201410228186.6 patent of invention and foul gas is handled using low-temperature plasma
Method, foul gas is after low-temperature plasma is handled, it is necessary to by ozono lysis apparatus remove residual ozone after again
Adsorbed or biochemical treatment.A kind of atomizing plasma body oxidation of Application No. CN201310208438.4 disclosure of the invention-
Without ozone decomposition after the method that biomass absorbent handles stench, corona treatment, but required sorbing material is prepared again
It is miscellaneous, be not easy to obtain.Application No. CN201410775946.5 patent of invention discloses a kind of garbage transfer station foul gas and administered
Technique and device, foul gas carry out catalysis oxidation after low-temperature plasma is handled, but catalysis oxidation temperature is high, and processing
Also need to carry out carrying out washing treatment afterwards.
Shortcoming based on the above method, the invention provides it is a kind of it is more efficient, it is convenient processing foul gas system and
Method.
The content of the invention
First purpose of the present invention is to provide a kind of system for handling foul gas.
A kind of system for handling foul gas, it is characterised in that：Including be sequentially connected in series washing unit, low temperature plasma
Pre-oxidize unit and catalysis oxidation washing unit；Wherein, washing unit includes spray scrubber；Low temperature plasma pre-oxidation is single
Member includes at least one plasma purification storehouse；Catalysis oxidation washing unit is included in catalysis oxidizing tower, catalysis oxidizing tower
Portion is provided with packing layer, and bottom, which is provided with the middle part of beds, tower, is provided with gas feed, and tower top is provided with sprinkling equipment.
Present system will first pass through washing unit and be absorbed, be cooled after the unified collection of foul waste gas, remove what is existed
Acid or alkaline gas, the outlet of washing unit pre-oxidizes unit by low temperature plasma, is excited, is bombarded greatly by ionization
Partial organic substances molecule is interrupted, and oxidation is changed into water-soluble preferably organic molecule, and then waste gas is washed by two-stage catalysis oxidation
Wash after unit, oxygenolysis can occur on beds for organic matter and oxidant in waste gas, remove exhaust emission,
Obtained processing gas qualified discharge.During this, low temperature plasma pre-oxidation and being used in combination that catalysis oxidation is washed, the former
Pre-oxidation effect is served, raising organic matter is water miscible to wash tower load while reducing subsequent catalyst and aoxidizing, and can substantially reduce oxygen
The operating cost of agent, and washing process does not produce secondary wastewater pollution, whole waste gas treatment process is simple, can efficient stable and
Operating cost is invested low, with good practicality.
Preferably, washing unit uses spray scrubber, spray scrubber bottom is provided with delivery port, delivery port and catalysis
Oxidation rinsing unit passes through pipeline connection.
Preferably, in processing system of the present invention, washing unit and low temperature plasma pre-oxidation unit pass through
Dehumidifying element is connected, and Dehumidifying element uses gas-liquid separator.Further preferably, Dehumidifying element, can be continuous using dynamic gas-liquid separator
It is separated off the water in gas.
Preferably, low temperature plasma pre-oxidation unit includes multiple plasma purification storehouses, described grade from
Daughter cleaning position is connected by way of series connection and/or parallel connection.
Preferably, in catalysis oxidation washing unit, in addition to the auxiliary equipment supporting with catalysis oxidizing tower, auxiliary equipment
Configuration system, transfer tank, auxiliary catalysis oxidation reaction tank (groove) including oxidant, cooxidant addition equipment, acidity and
Concentration detector and automatically adjust equipment.
Preferably, being further connected with absorbing unit behind catalysis oxidation washing unit, absorbing unit is inhaled using activated carbon double tower
Applying equipment.Further preferably, absorbing unit also includes active carbon regenerating unit, using regenerated carbon.Activated carbon can periodically be realized
Regeneration cycle is used.
Second object of the present invention is to provide the method that foul gas is handled using said system, comprises the following steps：
(1) wash：Foul gas enters washing unit by gas collection equipment, by certainly during the bottom-up diffusion of gas
On the inorganic alkali liquid washing that sprays downwards, obtain cleaning solution 1 and processing gas 2；
(2) pre-oxidize：Handle gas 2 and enter low temperature plasma oxidation unit, purified by least one low-temperature plasma
After the processing of storehouse, obtain handling gas 3；
(3) catalysis oxidation is washed：Processing gas 3 enters catalytic oxidation unit, is inversely connect with the cleaning solution 1 of addition oxidant
Touch, obtain mixed liquor 4 and processing gas 5, processing gas discharge passes through catalytic bed, obtains treatment fluid 6 when mixed liquor 4 flows downward,
Treatment fluid 6 is used for the inorganic alkali lye described in configuration step (1).
In step (3), the oxidant added in cleaning solution 1 is one kind or several in hydrogen peroxide, chlorine dioxide, sodium hypochlorite
Kind, oxygenate content is 0.2~4%, while being additionally added acid-base modifier in cleaning solution 1, regulation cleaning solution 1 is alkalescence, control
The pH of mixed liquor 4 processed is 8-9.The main function of alkali liquor absorption is to remove acidic oxide and partial organic substances in tail gas.
Alkali is sodium hydroxide or potassium hydroxide in the inorganic alkali lye, and the mass concentration of alkali is 5-15%, and inorganic alkali lye is followed
Ring keeps pH ＞ 9 during utilizing.
Preferably, processing gas 2 first passes through dynamic gas-liquid separator before low temperature plasma oxidation unit is entered, obtain
Qi-regulating 2-1 everywhere；Processing gas 5 first passes through the absorption of activated carbon double tower, qualified discharge before discharge.The main work of gas-liquid separator
With being exactly to retain the aerial fog type and/or particulate matter in waste gas, to ensure the normal operation of follow-up equipment.Charcoal absorption list
Member is two sets of activated carbon casees or activated carbon tower, and a set of function using another set of desorption and regeneration can be achieved in automatic or manual switching.
Activated carbon is granular activated carbon, and the granular activated carbon can be made using normal activated carbon or by modified activated carbon,
Described grain shape is spherical, cylindrical or almost spherical.Adsorbent desorption and regeneration can be steamed using hot-air, hot nitrogen or heat
The modes such as vapour.
Processing gas 2-1 of the processing gas 2 or processing gas 2 that step (1) is obtained after dehumidifying enters low temperature plasma oxygen
Change after unit, a large amount of high energy electrons that plasma purification storehouse is produced in energization running, negative ions, excitation state
Foul waste gas molecule, can be mostly oxidised into inorganic states gas, or form easy by particle and the free radical with strong oxidizing property
Degraded, water miscible intermediate product.
Processing gas 3 that step (2) is obtained enters catalysis oxidation washing unit, catalysis oxidation scrubbing tower by top filler system
System and beds two parts of bottom are constituted；By oxidant (hydrogen peroxide, chlorine dioxide, sodium hypochlorite etc.), acidity adjustment
Agent is made into absorbing liquid from catalysis oxidation tower top to bottom of towe circulated sprinkling with the absorbing liquid in previous stage caustic wash tower, with the middle part from tower
The waste gas counter-current absorption come in, absorbing liquid passes through catalyst bed by beds, control tower middle part water outlet pH after 8~9
Layer；During being somebody's turn to do, absorbing liquid is produced after absorbing the malodor components in waste gas by the oxidant in beds, with absorbing liquid
Active specy occur oxidative decomposition so as to waste gas deep purifying, while not producing the secondary pollutions such as waste water.
Spray column, low temperature plasma oxidation and catalysis oxidation washing process are combined in above procedure, mainly there is 3 skills
Art advantage：First, spray column can play the role of to wash and cool to waste gas, it is ensured that the height of follow-up low temperature plasma oxidation equipment
Imitate stable operation；Second, low temperature plasma has the active specy energy in preferable decomposition, plasma to foul waste gas
Most of is electrodeless state by foul waste gas molecular oxidation, or degradable, water-soluble preferable accessory substance, and the process can reduce useless
There is pre-oxidation effect while gas concentration to waste gas, can effectively reduce subsequent catalyst Effects Analysis load and oxidant consumption；The
Three, spray liquid can be with catalysis oxidizing tower water outlet loop configuration into the spray liquid containing oxidant, in internal system circulation, many in system
Secondary to apply mechanically, waste gas component etc. can be decomposed thoroughly in waste gas and waste water, not produce secondary pollution.
The spray scrubber of step (1) is graphite or fiberglass corrosion-resistant filling tower, and filler is ceramics or polytetrafluoroethylene (PTFE)；
Gas liquid ratio is 1~50L/m3, gas residence time in tower is washed is 5~60s.
Step (2) low temperature plasma oxidation equipment discharge mode can use double-dielectric barrier discharge, it is ensured that equipment
Safety and stability, while reaching more preferable removal efficiency.
Step (3) catalysis oxidizing tower is graphite or modified graphite resistant material film-falling absorption tower；The material of adsorption tower is
Fiberglass or Fluorine-lined carbon steel material.The liquid-gas ratio on solution absorption tower is 3~8, and waste gas flow velocity in packed tower is 0.3~3m/s；
Spray can be the mode that tower top spray or tower top are sprayed respectively with middle part.
Filler is loaded on catalytic oxidation unit top, and bottom of towe has beds.Top filler is ceramics or polytetrafluoroethylene (PTFE)；
The catalyst of bottom is loaded catalyst, using activated carbon, NACF, aluminum oxide, molecular sieve or ceramics as carrier, with
Copper, the oxide of copper, iron, the oxide of iron, cobalt, the oxide of cobalt, nickel, the oxide of nickel, titanium, titanyl compound, molybdenum, molybdenum
At least one of oxide is used as active component；Waste gas enters in the middle part of tower, is absorbed with the solution that tower top is sprayed, finally
Occurs oxidative decomposition by beds.
Included in step (3) catalytic oxidation unit auxiliary facility but be not limited only to circulating pump, oxidant configures system, transfer
Groove, auxiliary catalysis oxidation reaction tank (groove), cooxidant add-on system, pH and density monitoring system and automatic regulating system etc.
Equipment；
Method of the present invention is applied to domestic rubbish disposal station, raising fish and shrimp place, all kinds of chemical plant, Treatment of Sludge
Stand, the processing method of foul waste gas is produced during sewage treatment plant etc..
Brief description of the drawings
Fig. 1 is the system schematic for handling foul gas.
Embodiment
Embodiment 1：
The system of processing foul gas as shown in Figure 1, including spray scrubber 1, the low temperature plasma being sequentially connected
Cleaning position 2 and catalysis oxidizing tower 3；The bottom of spray scrubber 1 is provided with delivery port, and delivery port is connected with catalysis oxidizing tower 3 by pipeline
It is logical.Spray scrubber 1 and plasma purification storehouse 2 are connected by dehydrater 4, and dehumidifier 4 uses dynamic gas-liquid separator,
The water in gas can be continuously separated off.The top of catalysis oxidizing tower 3 is provided with packing layer, and bottom is provided with the middle part of beds, tower
Provided with gas feed, tower top is provided with sprinkling equipment.
In catalysis oxidation washing unit, in addition to the auxiliary equipment supporting with catalysis oxidizing tower, auxiliary equipment is including aoxidizing
Configuration system, transfer tank, auxiliary catalysis oxidation reaction tank (groove), cooxidant addition equipment, acidity and the Concentration Testing of agent
Device and automatically adjust equipment.Absorbing unit is further connected with behind catalysis oxidation washing unit, absorbing unit is inhaled using activated carbon double tower
Applying equipment.Absorbing unit also includes active carbon regenerating unit, using regenerated carbon, can periodically realize the regeneration cycle of activated carbon
Use.
Embodiment 2：
A large amount of sulfide hydrogens, trimethylamine, methyl sulfide, methyl mercaptan and low concentration ammonia are generated in certain fish product production process
Foul waste gas.Wherein hydrogen sulfide about 800mg/m3, methyl sulfide about 200mg/m3, TVOC about 560mg/m3, waste gas is with 3000m3/h
Flow enter filler spray column, with concentration be 10% sodium hydrate aqueous solution counter-current absorption, liquid-gas ratio is 6, sulphur after absorption
Change hydrogen content about 42mg/m3, methyl sulfide content about 168mg/m3, TVOC about 420mg/m3；Waste gas after being sprayed through alkali enters low temperature
Plasma oxidation equipment, equipment uses dielectric barrier discharge, installed power about 12KW, exhaust gas residence time about 5.3 seconds, waste gas
After low temperature plasma oxidation equipment, hydrogen sulfide content about 18mg/m3, methyl sulfide content about 110mg/m3, TVOC is about
200mg/m3；The waste gas come out from low temperature plasma oxidation washes tower in the middle part of tower into two-stage catalysis oxidation, and from catalysis oxygen
Change and wash inversely being contacted containing oxidizing agent solution for tower portion top spray pouring, sprinkle density is 30m3/m2H, exhaust gas residence time is 10s, institute
It is 2.3% to state the liquor natrii hypochloritis's available chlorine content being pumped into the middle part of catalysis oxidizing tower, and it is 35 DEG C that wherein packed tower, which absorbs temperature,
Reaction bed temperature is 40 DEG C, bed height about 400mm, and air speed is about 1.5s-1.Enter adsorption tower, waste gas after vent gas treatment
It is about 0.2m/s by adsorption tower flow velocity, after operation starts, hydrogen sulfide, methyl sulfide and TVOC in a tail gas is surveyed every 180min
Numerical value, sulfurated hydrogen detection does not go out from the waste gas that adsorption tower comes out, methyl sulfide about 0.2mg/m3, TVOCs is about 78mg/m3, processing
Gas high-altitude qualified discharge afterwards, while catalysis oxidizing tower water outlet COD is 10mg/m3。
Embodiment 3：
The foul waste gas of Sulfide-containing Hindered, mercaptan and a small amount of organic amine in certain enterprise's sewage disposal biochemical waste gas production.Wherein sulphur
Ether about 18mg/m3, mercaptan about 46mg/m3, TVOC about 178mg/m3, waste gas is with 1000m3/ h flow enters filler spray column, with
Concentration is 10% sodium hydrate aqueous solution counter-current absorption, and liquid-gas ratio is 4, thioether content about 15mg/m after absorption3, methyl sulfide contains
Measure about 33mg/m3, TVOC about 14mg/m3；Waste gas after being sprayed through alkali enters low temperature plasma oxidation equipment, and equipment is using Jie
Matter barrier discharge, installed power about 8KW, exhaust gas residence time about 6 seconds, waste gas is after low temperature plasma oxidation equipment, sulphur
Change hydrogen content about 10mg/m3, methyl sulfide content about 21mg/m3, TVOC about 93mg/m3；From giving up that low temperature plasma oxidation comes out
Gas enters one stage catalyzing oxidation in the middle part of tower and washes tower, with washing inversely being connect containing oxidizing agent solution for tower portion top spray pouring from catalysis oxidation
Touch, sprinkle density is 25m3/m2H, exhaust gas residence time is 4.5s, and the sodium hypochlorite being pumped into the middle part of the catalysis oxidizing tower is molten
Liquid available chlorine content is 1.2%, and it is 30 DEG C that wherein packed tower, which absorbs temperature, and reaction bed temperature is 35 DEG C, and bed height is about
200mm, air speed is about 1.0s-1.Enter adsorption tower after vent gas treatment, waste gas is about 0.21m/s by adsorption tower flow velocity, and operation is opened
After beginning, hydrogen sulfide, methyl sulfide and TVOC numerical value, the hydrogen sulfide from the waste gas that adsorption tower comes out in a tail gas are surveyed every 120min
Inspection is not measured, methyl sulfide about 0.04mg/m3, TVOCs is about 44mg/m3, gas high-altitude qualified discharge after processing, while being catalyzed oxygen
It is 0.8mg/m to change tower water outlet COD3。
Claims (9)
1. a kind of system for handling foul gas, it is characterised in that：It is pre- including the washing unit that is sequentially connected in series, low temperature plasma
Oxidation unit and catalysis oxidation washing unit；Wherein, washing unit includes spray scrubber；Low temperature plasma pre-oxidizes unit
Including at least one plasma purification storehouse；Catalysis oxidation washing unit includes catalysis oxidizing tower, catalysis oxidizing tower top
Provided with packing layer, bottom, which is provided with the middle part of beds, tower, is provided with gas feed, and tower top is provided with sprinkling equipment.
2. the system as claimed in claim 1, it is characterised in that：Washing unit and low temperature plasma pre-oxidation unit by except
Wet unit connection, described Dehumidifying element uses gas-liquid separator.
3. the system as claimed in claim 1, it is characterised in that：Absorbing unit is also associated with behind catalysis oxidation washing unit,
Described absorbing unit is activated carbon double tower adsorption plant.
4. the system as claimed in claim 1, it is characterised in that：Spray scrubber, spray scrubber bottom is provided with delivery port, goes out
The mouth of a river passes through pipeline connection with catalysis oxidation washing unit.
5. system as claimed in claim 3, it is characterised in that：Catalysis oxidation washing unit also includes auxiliary equipment, and auxiliary is set
It is standby include circulating pump, oxidant configuration system, transfer tank, auxiliary catalysis oxidation reaction tank, cooxidant add-on system, pH and
Density monitoring system and automatic regulating system, absorbing unit also include active carbon regenerating unit.
6. handling the method for foul gas using the system described in claim 1, comprise the following steps：
(1) wash：Foul gas enters washing unit by gas collection equipment, during the bottom-up diffusion of gas by to
The inorganic alkali liquid washing of lower spray, obtains cleaning solution 1 and processing gas 2；
(2) pre-oxidize：Handle gas 2 and enter low temperature plasma oxidation unit, at least one low-temperature plasma cleaning position
After reason, obtain handling gas 3；
(3) catalysis oxidation is washed：Processing gas 3 enters catalytic oxidation unit, inversely contacts, obtains with the cleaning solution 1 for adding oxidant
To mixed liquor 4 and processing gas 5, processing gas 5 directly discharges, catalytic bed is passed through when mixed liquor 4 flows downward, treatment fluid 6 is obtained,
Treatment fluid 6 is used for the inorganic alkali lye described in configuration step (1).
7. method according to claim 6, it is characterised in that the oxidant added in the cleaning solution 1 described in step (3) is
One or more in hydrogen peroxide, chlorine dioxide, sodium hypochlorite, oxygenate content is 0.2~4%, while also adding in cleaning solution 1
Entering has acid-base modifier, and regulation cleaning solution 1 is alkalescence, and the pH for controlling mixed liquor 4 is 8-9.
8. method according to claim 6, it is characterised in that processing gas 2 enter low temperature plasma oxidation unit it
Before first pass through dynamic gas-liquid separator, obtain processing gas 2-1；Processing gas 5 first passes through the absorption of activated carbon double tower before discharge, reaches
Mark discharge.
9. the method according to one of claim 6-8, it is characterised in that：Alkali is sodium hydroxide or hydrogen in the inorganic alkali lye
Potassium oxide, the mass concentration of alkali is 5-15%, and inorganic alkali lye keeps pH ＞ 9 during recycling.
Priority Applications (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126445A (en) * | 2017-12-29 | 2018-06-08 | 广东粤发四众环保服务有限公司 | The machine of organic exhaust gas is administered for absorbing the vegetation water of organic exhaust gas and combination method |
| CN108404656A (en) * | 2018-05-10 | 2018-08-17 | 山东派力迪环保工程有限公司 | Feed fish meal processes air purifying device of automatic control transfusion and its technique |
| CN108452668A (en) * | 2018-03-02 | 2018-08-28 | 山东派力迪环保工程有限公司 | Coke-oven plant's sewage plant waste gas treatment process |
| CN109999640A (en) * | 2019-03-27 | 2019-07-12 | 浙江大维高新技术股份有限公司 | Garbage transfer station deodoration system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531423A (en) * | 1978-08-25 | 1980-03-05 | Osaka Oxgen Ind Ltd | Deodorization of waste gas |
| CN103638761A (en) * | 2013-11-28 | 2014-03-19 | 江苏省环境科学研究院 | Method and device for removing malodorous gases by low-temperature plasma coupling catalytic oxidation |
| CN205145942U (en) * | 2015-10-28 | 2016-04-13 | 天津中天和庆环保科技有限公司 | VOCs volatility waste gas treatment equipment |
| CN205435426U (en) * | 2015-12-17 | 2016-08-10 | 宜宾海丝特纤维有限责任公司 | Treatment system of waste gas in viscose fiber production process |
| CN105964136A (en) * | 2016-06-08 | 2016-09-28 | 浙江奇彩环境科技股份有限公司 | Organic exhaust gas degradation method and device |
| CN206730825U (en) * | 2017-04-12 | 2017-12-12 | 浙江奇彩环境科技股份有限公司 | A kind of system for handling foul gas |
-
2017
- 2017-04-12 CN CN201710234637.0A patent/CN107008124A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531423A (en) * | 1978-08-25 | 1980-03-05 | Osaka Oxgen Ind Ltd | Deodorization of waste gas |
| CN103638761A (en) * | 2013-11-28 | 2014-03-19 | 江苏省环境科学研究院 | Method and device for removing malodorous gases by low-temperature plasma coupling catalytic oxidation |
| CN205145942U (en) * | 2015-10-28 | 2016-04-13 | 天津中天和庆环保科技有限公司 | VOCs volatility waste gas treatment equipment |
| CN205435426U (en) * | 2015-12-17 | 2016-08-10 | 宜宾海丝特纤维有限责任公司 | Treatment system of waste gas in viscose fiber production process |
| CN105964136A (en) * | 2016-06-08 | 2016-09-28 | 浙江奇彩环境科技股份有限公司 | Organic exhaust gas degradation method and device |
| CN206730825U (en) * | 2017-04-12 | 2017-12-12 | 浙江奇彩环境科技股份有限公司 | A kind of system for handling foul gas |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126445A (en) * | 2017-12-29 | 2018-06-08 | 广东粤发四众环保服务有限公司 | The machine of organic exhaust gas is administered for absorbing the vegetation water of organic exhaust gas and combination method |
| CN108126445B (en) * | 2017-12-29 | 2021-02-26 | 广东粤发四众环保服务有限公司 | Plant liquid for absorbing organic waste gas and machine for treating organic waste gas by combined method |
| CN108452668A (en) * | 2018-03-02 | 2018-08-28 | 山东派力迪环保工程有限公司 | Coke-oven plant's sewage plant waste gas treatment process |
| CN108404656A (en) * | 2018-05-10 | 2018-08-17 | 山东派力迪环保工程有限公司 | Feed fish meal processes air purifying device of automatic control transfusion and its technique |
| CN109999640A (en) * | 2019-03-27 | 2019-07-12 | 浙江大维高新技术股份有限公司 | Garbage transfer station deodoration system |
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Application publication date: 20170804 |