CN105623766B - A kind of bioremediation of fuel gas deoxidation, denitrogenation - Google Patents
A kind of bioremediation of fuel gas deoxidation, denitrogenation Download PDFInfo
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- CN105623766B CN105623766B CN201510870807.5A CN201510870807A CN105623766B CN 105623766 B CN105623766 B CN 105623766B CN 201510870807 A CN201510870807 A CN 201510870807A CN 105623766 B CN105623766 B CN 105623766B
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- denitrogenation
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- 239000002737 fuel gas Substances 0.000 title claims abstract description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 77
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 40
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000001301 oxygen Substances 0.000 claims abstract description 28
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 19
- 241000894006 Bacteria Species 0.000 claims abstract description 14
- 229920001817 Agar Polymers 0.000 claims abstract description 13
- 239000008272 agar Substances 0.000 claims abstract description 13
- 239000010802 sludge Substances 0.000 claims abstract description 13
- 230000002269 spontaneous effect Effects 0.000 claims abstract description 11
- 239000002351 wastewater Substances 0.000 claims abstract description 10
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 43
- 230000004060 metabolic process Effects 0.000 claims description 13
- 239000003245 coal Substances 0.000 claims description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 10
- 239000010865 sewage Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 241000193401 Clostridium acetobutylicum Species 0.000 claims description 6
- 239000005416 organic matter Substances 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- 241000193403 Clostridium Species 0.000 claims description 5
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 5
- 229910018890 NaMoO4 Inorganic materials 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- 239000008103 glucose Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 5
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 102000004169 proteins and genes Human genes 0.000 claims description 5
- 108090000623 proteins and genes Proteins 0.000 claims description 5
- 239000011780 sodium chloride Substances 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 241000193454 Clostridium beijerinckii Species 0.000 claims description 3
- 241000193171 Clostridium butyricum Species 0.000 claims description 3
- 241000193469 Clostridium pasteurianum Species 0.000 claims description 3
- 230000004103 aerobic respiration Effects 0.000 claims description 3
- 230000005587 bubbling Effects 0.000 claims description 2
- 239000010815 organic waste Substances 0.000 claims description 2
- 229910052564 epsomite Inorganic materials 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 8
- 239000001257 hydrogen Substances 0.000 abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 4
- 239000000571 coke Substances 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000007102 metabolic function Effects 0.000 abstract description 2
- 244000005700 microbiome Species 0.000 abstract description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- 241000306283 Clostridium acidisoli Species 0.000 description 3
- 241000306276 Clostridium akagii Species 0.000 description 3
- 241000193161 Clostridium formicaceticum Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 241000193446 Thermoanaerobacterium thermosaccharolyticum Species 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 241001137870 Thermoanaerobacterium Species 0.000 description 1
- 241000229117 [Clostridium] hungatei Species 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/105—Removal of contaminants of nitrogen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention relates to the bioremediations of a kind of fuel gas deoxidation, denitrogenation, comprising the following steps: (1) organic wastewater, oxygen-containing/nitrogen fuel gas, aerobic activated sludge is passed through closed deoxidation bioreactor and carries out aerobe reaction deoxidation；(2) the nitrogenous fuel gas after nitrogen-free agar, deoxidation, spontaneous anaerobism chemoheterotrophy nitrogen-fixing bacteria are passed through closed denitrification organisms reactor and carry out anaerobic organism reaction denitrogenation.Compared with existing high-temperature high-pressure chemical catalytic deoxidation and ultralow temperature deep cooling deoxidation denitrogenation, the present invention realizes that fuel gas deoxidation, denitrogenation are run under normal temperature and pressure conditions using the associated metabolic function of microorganism, equipment and control are required lower, operation stability is higher, and overall process safety is higher；Deoxidation process is without consuming the energy substances such as methane, carbon monoxide, hydrogen, coke, methanol；Denitrification process carries out under normal pressure, freezes without multi-stage compression, and energy consumption is lower.
Description
Technical field
The invention belongs to gas deoxidations, denitrogenation technical field, and in particular to a kind of fuel gas deoxidation, denitrogenation biology at
Reason method.
Background technique
Unconventional gas that coal bed gas, shale gas, coke-stove gas, biological fuel gas, landfill gas etc. are flammable or exhaust gas
Development and utilization are increasingly subject to the concern of international community.Different amounts of oxygen, nitrogen are usually mixed in the above fuel gas.Oxygen
Biggish security risk is caused during transport, separation and utilization to fuel gas in the presence of meeting；And the presence of nitrogen can reduce
The calorific value of fuel gas influences the economic benefit that terminal utilizes.For safety, the above fuel gas of high-value-use, deoxidation, denitrogenation
It is necessary links, especially deoxygenation step.
Currently, fuel gas deoxidation mainly uses chemical catalysis reaction to consume the oxygen in gas, such as methyl hydride catalyzed combustion
Burn off oxygen (101664679 B of publication CN), coke catalytic oxygen removal by combustion (granted patent ZL02113627.0), an oxidation
Carbon is catalyzed oxygen removal by combustion (100579653 C of publication CN), hydrogen catalytic combustion deoxygenation (publication CN 100579653
C), methanol oxidation oxygen removal by combustion (103599775 A of publication CN).On the one hand the above chemical catalysis deoxidization technique needs to disappear
Methane, the carbon monoxide, hydrogen in combustible gas, or hydrogen, coke, the methanol etc. of the supply of the consumption system external world are consumed, energy is caused
The waste in source；On the other hand, inevitable to be run under high-temperature and high-pressure conditions since chemical catalysis deoxidation is an exothermic reaction, it is right
Equipment requirement and operational safety are all greatly to challenge.
Currently, fuel gas denitrogenation is since difficulty is larger, few denitrogenation applications." deoxidation of coalbed methane containing oxygen takes off patent
Nitrogen system " (103484184 A of publication CN) discloses a kind of method for carrying out deoxidation denitrogenation using cryogenic separation, but should
Method energy consumption is higher.
More than summary, it is necessary to develop a kind of safer, low consumption, efficient fuel gas deoxidation, denitrification process.
Summary of the invention
It is an object of the invention to overcome deficiency in the prior art, the biological treatment of fuel gas deoxidation, denitrogenation is provided
Method realizes fuel gas safety, low consumption, efficient deoxidation, denitrogenation.
The bioremediation of fuel gas deoxidation, denitrogenation in the present invention, comprising the following steps:
(1) organic wastewater, oxygen-containing/nitrogen fuel gas, aerobic activated sludge are passed through closed deoxidation bioreactor, controlled
It makes 20~35 DEG C of temperature, pH value 6.5~8.5, aerobic activated sludge in closed bioreactor and utilizes having in organic wastewater
Oxygen in machine matter and oxygen-containing/nitrogen fuel gas carries out aerobic respiration metabolism, consumes the oxygen in oxygen-containing/nitrogen fuel gas；
Organic matter+O2→CO2+H2O
(2) the nitrogenous fuel gas after nitrogen-free agar, deoxidation, spontaneous anaerobism chemoheterotrophy nitrogen-fixing bacteria are passed through closed
Denitrification organisms reactor, controls 25~68 DEG C of temperature, pH value 6.5~8.5 in closed bioreactor, and spontaneous anaerobic energy is different
It supports nitrogen-fixing bacteria and carries out spontaneous anaerobic energy using the nitrogen in the non-nitrogen nutriment and nitrogenous fuel gas in nitrogen-free agar
Fixed nitrogen metabolism, consumes the nitrogen in nitrogenous fuel gas.
Non-nitrogen nutriment+N2→ cell protein+NH4 +
The organic wastewater includes but is not limited to sanitary sewage and industrial organic waste water；
Oxygen-containing/nitrogen the fuel gas include but is not limited to coal bed gas, shale gas, coke-stove gas, biological fuel gas,
Landfill gas；
The aerobic activated sludge derives from sewage treatment plant；
The nitrogen-free agar formula is 5~20g containing glucose, KH in every liter of water2PO40.2~3g, MgSO47H2O
0.2~0.5g, NaCl 0.2~1g, FeSO4 0.05~0.1g, CaCl2·2H2O 0.2~0.5g, NaMoO40.01~
3~5g of 0.03g, CaCO3,0.2~0.4g of L-AA；
The spontaneous anaerobism chemoheterotrophy nitrogen-fixing bacteria include but is not limited to clostridium acetobutylicum (Clostridium
Acetobutylicum), Clostridium beijerinckii (Clostridium beijerinckii), clostridium butyricum (Clostridium
Butyricum), clostridium klebsi (Clostridium kluyverii), clostridium pasteurianum (Clostridium
Pasteurianum), Heng Shi clostridium (Clostridium hungatei), Clostridium formicoaceticum,
Clostridium akagii、Clostridium acidisoli、Thermoanaerobacterium
thermosaccharolyticum；Using when add they a kind of bacterium or a variety of bacterium combination；
The closed deoxidation bioreactor and closed denitrification organisms type of reactor include stirring reactor,
Bubbling column reactor, microvesicle reactor, membrane reactor, preferably membrane reactor, according to the height of oxygen, nitrogen content in fuel gas
The oxygen after multistage deoxidation/nitrogen bioreactor guarantee is handled in gas can be arranged in series, nitrogen content reaches requirement；
Gas self circular loop is arranged in the closed deoxidation bioreactor and closed denitrification organisms reactor, prolongs
Gas-liquid contact time in long reactor improves oxygen, the nitrogen removal efficiency of reactor.
Compared with existing high-temperature high-pressure chemical catalytic deoxidation and ultralow temperature deep cooling deoxidation denitrogenation, innovation of the invention
It is, realizes that fuel gas deoxidation, denitrogenation are run under normal temperature and pressure conditions using the associated metabolic function of microorganism.Using this
There are three advantages for inventive method tool: 1) deoxidation, denitrogenation are run under normal temperature and pressure conditions, require equipment and control lower, fortune
Row high stability, overall process safety are higher；2) what deoxidation process consumed is the organic matter in organic wastewater, without consumption
The energy efficiency of the energy substances such as methane, carbon monoxide, hydrogen, coke, methanol, treatment process is higher, and deoxidation process sheet
Body has sewage treatment effect；3) denitrification process carries out under normal pressure, freezes without multi-stage compression, and energy consumption is lower.
Detailed description of the invention
Fig. 1 is the process flow diagram of the method for the present invention
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1:
Deoxidation, denitrogenation processing are carried out to the landfill gas of certain refuse landfill, landfill-gas collecting amount is 10000m3/ d, landfill
Gas main component is CH450%, CO240%, O22%, N26%.Landfill gas and neighbouring sanitary sewage are collected, by them and sewage
The aerobic activated sludge for the treatment of plant is passed through closed deoxidation membrane bioreactor, 20 DEG C of reactor temperature of control, pH value 6.5 into
It acts charitably oxygen respiratory metabolism, the aerobic chemoheterotrophic bacteria in aerobic activated sludge passes through reaction equation (organic matter+O2→CO2+H2O) disappear
Consume O2；Nitrogen-free agar is prepared, is formulated as 5g containing glucose, KH in every liter of water2PO40.2g, MgSO47H2O 0.2g, NaCl
0.2g, FeSO4 0.05g, CaCl2·2H2O 0.2g, NaMoO40.01g, CaCO3 3g, L-AA 0.2g, nitrogen-free is trained
It is closed de- that landfill gas, clostridium acetobutylicum (Clostridium acetobutylicum) after supporting base, deoxidation are passed through two-stage
Nitrogen microvesicle bioreactor, 25 DEG C of reactor temperature of control, pH value 6.5 carry out anaerobic nitrogen-fixation metabolism, clostridium acetobutylicum benefit
Spontaneous anaerobic nitrogen-fixation metabolism is carried out with the non-nitrogen nutriment in nitrogen-free agar and the nitrogen in landfill gas, according to reaction equation
(non-nitrogen nutriment+N2→ cell protein+NH4 +) consumption landfill gas in nitrogen, finally obtain ingredient be CH453%,
CO245%, O20.1%, N20.3% landfill gas.
Embodiment 2:
Deoxidation, denitrogenation processing are carried out to certain small-size coal mine coal bed gas, coal bed gas collecting amount is 20000m3/ d, in coal bed gas
O25%, N215%, remaining is mainly CH4.Coal bed gas and neighbouring starch production wastewater are collected, they are good with sewage treatment plant
Oxygen activity sludge is passed through the closed deoxidation of two-stage and is bubbled bioreactor, and 28 DEG C of reactor temperature of control, pH value 7.5 carry out
Oxygen respiratory metabolism, the aerobic chemoheterotrophic bacteria in aerobic activated sludge pass through reaction equation (organic matter+O2→CO2+H2O O) is consumed2；
Nitrogen-free agar is prepared, is formulated as 13g containing glucose, KH in every liter of water2PO41.5g, MgSO47H2O 0.35g, NaCl
0.6g, FeSO4 0.07g, CaCl2·2H2O 0.35g, NaMoO40.02g, CaCO34g, L-AA 0.3g, nitrogen-free is trained
Support base, the coal bed gas after deoxidation, Clostridium formicoaceticum, Clostridium akagii,
Clostridium acidisoli is passed through the closed denitrogenation membrane bioreactor of three-level, controls 45 DEG C of reactor temperature, pH value
7.5 carry out anaerobic nitrogen-fixation metabolism, Clostridium formicoaceticum, Clostridium akagii,
Clostridium acidisoli begin to detest certainly using the non-nitrogen nutriment in nitrogen-free agar and the nitrogen in coal bed gas
Oxygen fixed nitrogen metabolism, according to reaction equation (non-nitrogen nutriment+N2→ cell protein+NH4 +) consumption coal bed gas in nitrogen, finally
Obtain O20.3%, N20.7% coal bed gas.
Embodiment 3:
Deoxidation, denitrogenation processing are carried out to the coke-stove gas of certain coking plant, coke-stove gas collecting amount is 20000m3/ d, gas
Form H255%, CH420%, CO 9%, CO25%, N25%, O20.8%.Coke-stove gas and neighbouring Alcohol Production waste water are collected,
The aerobic activated sludge of they and sewage treatment plant is passed through closed deoxidation stirred bioreactor, controls reactor temperature
35 DEG C, pH value 8.5 carry out aerobic respiration metabolism, the aerobic chemoheterotrophic bacteria in aerobic activated sludge by reaction equation (organic matter+
O2→CO2+H2O O) is consumed2；Nitrogen-free agar is prepared, is formulated as 20g containing glucose, KH in every liter of water2PO43g, MgSO4
7H2O 0.5g, NaCl 1g, FeSO4 0.1g, CaCl2·2H2O 0.5g, NaMoO40.03g, CaCO35g, L-AA
0.4g, by coke-stove gas, the Thermoanaerobacterium after nitrogen-free agar, deoxidation
Thermosaccharolyticum is passed through the closed denitrogenation microvesicle bioreactor of two-stage, controls 68 DEG C of reactor temperature, pH
Value 8.5 carries out anaerobic nitrogen-fixation metabolism, and Thermoanaerobacterium thermosaccharolyticum utilizes nitrogen-free culture
Non-nitrogen nutriment in base and the nitrogen in coke-stove gas carry out spontaneous anaerobic nitrogen-fixation metabolism, according to reaction equation (non-nitrogen nutrition
Substance+N2→ cell protein+NH4 +) consumption coke-stove gas in nitrogen, finally obtain O20.05%, N20.5% coke-oven coal
Gas.
The above enumerated are only specific embodiments of the present invention for finally, it should also be noted that.Obviously, the present invention is unlimited
In above embodiments, acceptable there are many deformations.Those skilled in the art can directly lead from present disclosure
Out or all deformations for associating, it is considered as protection scope of the present invention.
Claims (8)
1. the bioremediation of a kind of fuel gas deoxidation, denitrogenation, which is characterized in that method includes the following steps:
(1) organic wastewater, oxygen-containing/nitrogen fuel gas, aerobic activated sludge are passed through closed deoxidation bioreactor, controlled close
20~35 DEG C of temperature, pH value 6.5~8.5, aerobic activated sludge utilize having in organic wastewater in enclosed deoxidation bioreactor
Oxygen in machine matter and oxygen-containing/nitrogen fuel gas carries out aerobic respiration metabolism, consumes the oxygen in oxygen-containing/nitrogen fuel gas；
Organic matter+O2→CO2+H2O
(2) the nitrogenous fuel gas after nitrogen-free agar, deoxidation, spontaneous anaerobism chemoheterotrophy nitrogen-fixing bacteria are passed through closed denitrogenation
Bioreactor, controls 25~68 DEG C of closed denitrification organisms reactor temperature, pH value 6.5~8.5, and spontaneous anaerobic energy is different
It supports nitrogen-fixing bacteria and carries out spontaneous anaerobic energy using the nitrogen in the non-nitrogen nutriment and nitrogenous fuel gas in nitrogen-free agar
Fixed nitrogen metabolism, consumes the nitrogen in nitrogenous fuel gas,
Non-nitrogen nutriment+N2→ cell protein+NH4 +。
2. the bioremediation of a kind of fuel gas deoxidation according to claim 1, denitrogenation, which is characterized in that step
(2) the spontaneous anaerobism chemoheterotrophy nitrogen-fixing bacteria in include but is not limited to clostridium acetobutylicum, Clostridium beijerinckii, clostridium butyricum, gram
Family name clostridium, clostridium pasteurianum, Heng Shi clostridium；Using when add they a kind of bacterium or a variety of bacterium combination.
3. the bioremediation of a kind of fuel gas deoxidation according to claim 1, denitrogenation, which is characterized in that step
(2) the nitrogen-free agar formula in is 5~20g containing glucose, KH in every liter of water2PO40.2~3g, MgSO4·7H2O 0.2~
0.5g, NaCl 0.2~1g, FeSO40.05~0.1g, CaCl2·2H2O 0.2~0.5g, NaMoO40.01~0.03g,
CaCO33~5g, 0.2~0.4g of L-AA.
4. the bioremediation of a kind of fuel gas deoxidation according to claim 1, denitrogenation, which is characterized in that step
(1) the closed denitrification organisms type of reactor in closed deoxidation bioreactor and step (2) in includes that stirring-type is anti-
Answer device, bubbling column reactor, microvesicle reactor or membrane reactor.
5. the bioremediation of a kind of fuel gas deoxidation according to claim 1, denitrogenation, which is characterized in that step
(1) the settable level-one of closed denitrification organisms reactor or series connection in the closed deoxidation bioreactor and step (2) in
Setting is multistage.
6. the bioremediation of a kind of fuel gas deoxidation according to claim 1, denitrogenation, which is characterized in that step
(1) the closed denitrification organisms reactor setting gas self-loopa in the closed deoxidation bioreactor and step (2) in is returned
Road.
7. the bioremediation of a kind of fuel gas deoxidation according to claim 1, denitrogenation, which is characterized in that step
(1) organic wastewater in includes but is not limited to sanitary sewage and industrial organic waste water, and the aerobic activated sludge in step (1) comes
Derived from sewage treatment plant.
8. the bioremediation of a kind of fuel gas deoxidation according to claim 1, denitrogenation, which is characterized in that oxygen-containing/
Nitrogen fuel gas includes but is not limited to coal bed gas, shale gas, coke-stove gas, biological fuel gas, landfill gas.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510870807.5A CN105623766B (en) | 2014-11-26 | 2015-11-26 | A kind of bioremediation of fuel gas deoxidation, denitrogenation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014106871773 | 2014-11-26 | ||
| CN201410687177 | 2014-11-26 | ||
| CN201510870807.5A CN105623766B (en) | 2014-11-26 | 2015-11-26 | A kind of bioremediation of fuel gas deoxidation, denitrogenation |
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| Publication Number | Publication Date |
|---|---|
| CN105623766A CN105623766A (en) | 2016-06-01 |
| CN105623766B true CN105623766B (en) | 2019-08-09 |
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| CN102249406A (en) * | 2011-06-17 | 2011-11-23 | 河南农业大学 | Method and deoxidization reactor for producing nitrogen by utilizing organic wastewater |
| CN102286540A (en) * | 2011-06-17 | 2011-12-21 | 河南农业大学 | Method for performing nitrogen fixation for straw anaerobic fermentation by utilizing organic wastewater |
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| JP2012100547A (en) * | 2010-11-08 | 2012-05-31 | Daicel Corp | Method and apparatus for producing organic matter by feeding gas resource to anaerobic microorganism |
| CN102515439A (en) * | 2011-12-22 | 2012-06-27 | 中国地质大学（北京） | Biological deoxidation denitrification method in oxidative environment groundwater and device thereof |
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| CN101870894A (en) * | 2009-04-21 | 2010-10-27 | 张扬 | Method and biological plant for removing carbon dioxide, hydrogen sulfide and ammonia from methane by using microecology principle |
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| CN102286540A (en) * | 2011-06-17 | 2011-12-21 | 河南农业大学 | Method for performing nitrogen fixation for straw anaerobic fermentation by utilizing organic wastewater |
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