CN208603834U - Resource utilization coal hydrogen production system CO2Chemical system for tail gas and fusel waste liquid - Google Patents
Resource utilization coal hydrogen production system CO2Chemical system for tail gas and fusel waste liquid Download PDFInfo
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- CN208603834U CN208603834U CN201821230550.2U CN201821230550U CN208603834U CN 208603834 U CN208603834 U CN 208603834U CN 201821230550 U CN201821230550 U CN 201821230550U CN 208603834 U CN208603834 U CN 208603834U
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- sodium carbonate
- fusel
- section
- denitrification
- waste
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 78
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 75
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000003245 coal Substances 0.000 title claims abstract description 68
- 239000007789 gas Substances 0.000 title claims abstract description 62
- 239000002699 waste material Substances 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 239000007788 liquid Substances 0.000 title abstract description 16
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 154
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 144
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 79
- 238000006396 nitration reaction Methods 0.000 claims abstract description 54
- 239000010865 sewage Substances 0.000 claims abstract description 41
- 239000000126 substance Substances 0.000 claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 32
- 238000002360 preparation method Methods 0.000 claims abstract description 31
- 239000012670 alkaline solution Substances 0.000 claims abstract description 14
- 239000002912 waste gas Substances 0.000 claims abstract description 6
- -1 hydrogen Chemical class 0.000 claims abstract description 4
- 229910001868 water Inorganic materials 0.000 claims description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 31
- 239000000243 solution Substances 0.000 claims description 20
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000002309 gasification Methods 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 230000001476 alcoholic effect Effects 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 241000108664 Nitrobacteria Species 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000003808 methanol extraction Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 2
- 206010021143 Hypoxia Diseases 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 2
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 claims description 2
- 230000007954 hypoxia Effects 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate group Chemical group [N+](=O)([O-])[O-] NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 239000003610 charcoal Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 41
- 230000008569 process Effects 0.000 abstract description 26
- 230000008901 benefit Effects 0.000 abstract description 9
- 230000001546 nitrifying effect Effects 0.000 abstract description 7
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 57
- 235000017550 sodium carbonate Nutrition 0.000 description 54
- 229940001593 sodium carbonate Drugs 0.000 description 53
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 25
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 20
- 230000000694 effects Effects 0.000 description 14
- 239000003513 alkali Substances 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 10
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 6
- 239000003814 drug Substances 0.000 description 6
- 238000011109 contamination Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000003911 water pollution Methods 0.000 description 5
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 229920005862 polyol Polymers 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000004099 anaerobic respiration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009469 supplementation Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- WJEIYVAPNMUNIU-UHFFFAOYSA-N [Na].OC(O)=O Chemical compound [Na].OC(O)=O WJEIYVAPNMUNIU-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000401 methanolic extract Substances 0.000 description 1
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical compound [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010117 shenhua Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Abstract
The utility model provides a resource utilization coal hydrogen production CO2The chemical system of tail gas and fusel waste liquid comprises a coal hydrogen production system and a sewage treatment system which are arranged adjacently, wherein the coal hydrogen production system generates CO in the process of preparing hydrogen2Waste gas, fusel waste liquid generated in the process of preparing methanol, a sodium carbonate preparation device and CO2Waste gas lets in the device, and alkaline solution lets in the device, and the product of the device lets in the first group of sewage treatment system or each group's section entry of nitrifying for adjust the basicity of nitrifying the section, fusel waste liquid provides organic carbon source for sewage treatment system's denitrification section entry simultaneously, realizes efficient nitration process and denitrification, thereby realizes the denitrogenation, reduces the sewage treatment process of COD and phosphorus. The waste gas and the waste liquid of the coal hydrogen production system are recycled, the discharge of the waste gas and the waste liquid is avoided, agents for adjusting the alkalinity and the organic carbon source in the sewage treatment process are reduced, the operation cost is reduced, and economic benefits are generated.
Description
Technical field
The utility model relates to a kind of resource utilization coal hydrogen generating system CO2The chemical system of tail gas and waste fusel liquor, more
In particular it relates to the resource utilization coal hydrogen generating system CO of the coal hydrogen generating system and sewage disposal system that include neighbouring setting2Tail
The chemical system of gas and waste fusel liquor.
Background technique
China is the country using coal as main energy sources, and using coal as waste hydrogen, centralized processing is a kind of opposite
The hydrogen manufacturing route of environmental protection.
Fig. 1 is the flow chart of coal hydrogen generating system, from figure 1 it appears that feed coal 27 in gasification furnace 21 be passed through
Oxygen 28 and water or steam 29 heat together, and coal is made to generate CO, after then reaching catalyst temperature in CO converting means 22,
It reacts CO with vapor and generates CO2And hydrogen, by the CO of generation2Be passed through sour gas removing means 23 with hydrogen, obtain purity compared with
High CO2.Gained hydrogen further purifies in hydrogen purification device 24, is then stored in hydrogen container 31.
The sour gas removal methods that sour gas removing means 23 generallys use have solution Physical Absorption, solution chemistry absorb,
4 major class of low temperature distillation and absorption, it is most that solution Physical Absorption, solution chemistry absorb two methods application.Solution Physical Absorption method
It is mainly used for the higher occasion of pressure；Chemical absorption process is mainly used for the relatively low occasion of pressure.Solution Physical Absorption method
In with low-temp methanol to wash method energy consumption minimum, can be in removing CO2While complete fine de-sulfur.Low-temp methanol washes method with cold methanol
Lyosoption removes the sour gas in unstripped gas using methanol at low temperature to the great good characteristic of sour gas solubility
Body.Process generally comprises an absorption tower and multiple Analytic Towers, and absorption tower absorbs sour gas, and Analytic Tower parses sour gas
And lean solution methanol is returned into absorption tower, reach and recycles methanol.Therefore CO in coal hydrogen manufacturing2Tail gas is acid in coal hydrogen production process
Qi exhaustion is except a large amount of high concentrations of link removing, the CO of high-purity2Tail gas.
The hydrogen that coal hydrogen manufacturing obtains can pass through heating, pressurization with CO in methanol device 25 processed, under the action of catalyst
Synthesizing methanol is generating methanol because of the influence of the factors such as synthesis condition such as pressure, temperature, synthesis gas composition and catalyst performance
While reaction, a series of side reactions are accompanied by, produce water, ether, aldehyde, ketone, ester, alkane, organic acid, organic amine, advanced
Tens kinds of foreign organic matters such as alcohol.Basic material of the methanol as organic chemical industry, purity have certain requirement, therefore, thick first
Alcohol needs that the refined methanol of different purity is made by rectifying.
Methanol rectification is multiple simple distillation combinations, is carried out in methanol rectifying system 26.According to institute in liquid mixture
Its boiling point of the substance for including is different, is constantly condensed, is gasified, the methanol in mixed liquor is made to be kept completely separate out, meanwhile, row
Waste fusel liquor 32 out, to obtain refined methanol 33.The main component of waste fusel liquor 32 is alcohols and water, mainly has methanol in alcohols
With other polyols.
From fig. 1, it can be seen that coal hydrogen manufacturing generates a large amount of CO in sour gas removing link2Tail gas, and purity is high, impurity are few.
Currently, coal hydrogen manufacturing CO2The processing of tail gas, based on being discharged to atmosphere.With the aggravation of greenhouse effects, environmental protection standard
It is higher and higher, CO2Disposition become research focus.Currently, mainly having 2 directions, first is that CO2It is sealed up for safekeeping after exhaust collection, it is another
A is to CO2Tail gas carries out resource utilization.It is sealed up for safekeeping after collection, there is chemical plant to attempt coal hydrogen manufacturing CO2Tail gas Implantation Energy failure
Oil field, improve oil gas field recovery ratio, the method be suitable for seal closer oil field up for safekeeping.And resource utilization not only restrictive condition
Few, at low cost, product can also generate economic benefit, and coal hydrogen manufacturing CO2Tail gas purity is higher, and therefore, resource utilization more has excellent
Gesture.
Currently, coal hydrogen manufacturing CO2Tail gas comprehensive utilization path has: 1) making pure CO2, advantage is to realize CO2Effective use,
The disadvantage is that one-time investment cost is huge, facility is complicated, and land occupation is big.Such as Xinhua Guangdong coal hydrogen manufacturing CO2Tail gas comprehensive utilization uses
Catalysis oxidation and rectifying combination technique, generate 99.999% food-class high-purity carbon dioxide；2) it is reacted with alkali, produces carbonic acid
Sodium and sodium bicarbonate, the method facility is simple, and investment is small, the disadvantage is that the sodium carbonate and sodium bicarbonate utility value that generate are small, such as
Fruit need using, it is also necessary to processing is further purified.
From fig. 1, it can be seen that coal hydrogen manufacturing generates a large amount of waste fusel liquors in methanol rectification link, the main component of waste fusel liquor is alcohol
Class and water mainly have methanol and other polyols in alcohols.
Waste fusel liquor main processing ways have at present: 1) fusel burns, and processing cost is low, but only generates some thermal energy, warp
Ji property is low；2) it being distilled to recover, one-time investment and operating cost are high, and the device is complicated, it takes up a large area, but generate various alcohols,
It can sell.
And in the biochemistry pool of sewage treatment, generally there are many mushrooms, mainly there are nitrobacteria and denitrifying bacteria,
Nitration reaction and anti-nitration reaction are carried out, we are indicated the nitration section for being biochemistry pool of carry out nitration reaction with O；It carries out anti-
Nitration reaction is denitrification section, is indicated with A.If a biochemistry pool has a nitration section and denitrification section, it is expressed as AO, but
Majority has multiple nitration sections to combine with multiple denitrification sections, is expressed as AxOy, wherein x, and y is respectively denitrification section and nitration section
Quantity, x are natural number from small to large, and y is natural number from big to small.
Nitration section needs industrial sodium carbonate as inorganic carbon source, is responsible for basicity needed for providing nitrifying process.Principle be
In nitrifying process, H will be discharged+To reduce pH, and nitrobacteria is very sensitive to pH variation, most preferably 8~8.4.Work as raw water
Basicity is insufficient, to discharge H in the reaction process that liquidates+, Optimal pH is maintained, basicity is required supplementation with.In general, 1 ammoniacal nitrogen is (with nitrogen
Meter) it nitrifies completely, need basicity (with CaCO3) 7.14g.
Organic carbon source needed for denitrification section needs industrial methanol to provide denitrification process.Principle is that denitrifying bacterium is heterotrophism
Type facultative anaerobic bacteria.In anaerobic respiration, using organic matter as electron donor, using nitrate nitrogen as electron acceptor.Therefore, when in raw water
When carbon-nitrogen ratio is lower, organic carbon source need to be separately added, methanol is now mostly used, because its decomposition product is CO2And H2O does not stay any difficulty
In the intermediate product of degradation, and denitrification rate is high.
Wherein, about 1600 yuan/ton of soda ash price, about 3000 yuan/ton of piece alkali, about 2800 yuan/ton of methanol.Sewage treatment is come
It says, since water is very big, causes the dosage of industrial sodium carbonate and industrial methanol also very big, reagent cost is very high.
Therefore be required to eliminate carbon dioxide, waste fusel liquor discharge and waste fusel liquor burning, reduce greenhouse effects,
Gaseous contamination and water pollution reduce CO in coal hydrogen generating system2The processing cost of tail gas and waste fusel liquor can utilize coal hydrogen manufacturing
CO in system2The chemical system of tail gas and waste fusel liquor.
Utility model content
The purpose of the utility model is to provide a kind of resource utilization coal hydrogen manufacturing CO2The department of chemistry of tail gas and waste fusel liquor
System, can eliminate carbon dioxide, the discharge of waste fusel liquor and the burning of waste fusel liquor, reduce greenhouse effects, gaseous contamination and
Water pollution reduces or eliminates CO in coal hydrogen generating system2Vent gas treatment cost, and further, it can reduce or eliminate fusel
The processing cost of waste liquid.
According to the utility model, a kind of resource utilization coal hydrogen manufacturing CO is provided2The chemical system of tail gas and waste fusel liquor,
It is characterized in that, coal hydrogen generating system and sewage disposal system including neighbouring setting, in which:
Coal hydrogen generating system is used to generate CO during preparing hydrogen using coal as raw material for preparing hydrogen2Exhaust gas；
Sewage disposal system includes:
One or more groups of denitrification sections, the nitration section being connected in series, denitrification section are used under anaerobic or hypoxia condition, are led to
Denitrifying bacteria is crossed by nitrate nitrogen (NO3- N) and nitrite nitrogen (NO2- N) it is reduced to nitrogen, nitration section and denitrification Duan Lian
It connects, is nitrate or nitrite for passing through nitrobacteria for the ammoxidation in sewage；
Wherein, which further includes sodium carbonate preparation facilities, CO2Exhaust gas and alkaline solution are passed into the sodium carbonate system
Standby device, the product of the sodium carbonate preparation facilities is passed through first group or each group of nitration section entrance, for adjusting the alkali of nitration section
Degree.
The utility model is by providing a kind of resource utilization coal hydrogen manufacturing CO2The chemical system of tail gas and waste fusel liquor,
Middle coal hydrogen generating system and sewage disposal system are provided adjacent to, so that the CO of coal hydrogen generating system2Exhaust gas can be used appropriately, and avoid
CO2Direct emission is good for the environment, and reduces greenhouse effects.
Preferably, which further includes gasification furnace, for being vaporized coal as raw material, generates CO；CO becomes
Changing device is connect with gasification furnace, and the CO for producing gasification furnace generates hydrogen and CO with the steam reaction being passed through2And alcohol
Preparation facilities prepares alcoholic compound for reacting using the CO generated in coal hydrogen generating system with hydrogen, and alcohol preparation facilities is connected to
First group or each group of denitrification section entrance, the organic carbon source concentration of denitrification section is adjusted for being passed through alcoholic compound.
Preferably, alcohol preparation facilities further includes methanol extraction element, for purifying methanol from alcoholic compound；And waste fusel liquor
Collection device is connect with methanol extraction element, and for collecting remaining waste fusel liquor after methanol extraction element, the fusel is useless
Liquor collecting device is connected to denitrification section entrance, and the organic carbon source concentration of denitrification section is adjusted for being passed through waste fusel liquor.
As a result, methanol made from coal hydrogen generating system or remaining waste fusel liquor after methanol extracts have obtained directly having
The utilization of effect eliminates the discharge and burning of waste fusel liquor, reduces corresponding water pollution and gaseous contamination, while reducing dirt
For adjusting the cost of the medicament of organic carbon source in water treatment procedure.
Preferably, the downstream of denitrification section is arranged in nitration section.
The downstream of nitration section can also be arranged according to the needs of sewage treatment in denitrification section by the utility model.
Preferably, which further includes CO2Exhaust gas removes collection device, generates during hydrogen for that will prepare
CO2Waste gas absorption simultaneously stores.
Preferably, the CO2It is sodium carbonate preparation facilities that exhaust gas, which removes collection device, in sodium carbonate preparation facilities, CO2
Sodium carbonate or sodium bicarbonate are generated with the alkaline solution being passed through.
Preferably, the CO2Exhaust gas removes the CO of collection device storage2It is passed through sodium carbonate preparation facilities, is prepared in sodium carbonate
In device, CO2Sodium carbonate or sodium bicarbonate are generated with the alkaline solution being passed through.
Embodiment according to the present utility model, the CO in coal hydrogen generating system2Exhaust gas can remove collection device by exhaust gas and receive
Integrate the CO as high-purity2For other purposes, sodium carbonate or sodium bicarbonate directly can also be generated with alkaline solution, for adjusting
The basicity of sewage disposal system.
Preferably, which further includes sodium carbonate variable frequency pump, is connected to CO2The outlet end of exhaust gas removing collection device
Between the nitration section entrance of sewage disposal system, it is used for from CO2Exhaust gas remove collection device outlet end pumping sodium carbonate or
Nitration section of the sodium bicarbonate solution to sewage disposal system.
Preferably, which further includes alcohol variable frequency pump, is connected to alcohol preparation facilities outlet end and denitrification section entrance
Between, for alcoholic compound to be pumped methanol to sewage disposal system from the outlet end of methanol preparation facilities.
Preferably, which further includes pH probe and dissolved oxygen in-line analyzer, and for the treatment of tank is arranged in
It at one or the water outlet of each nitration section, is interlocked with sodium carbonate variable frequency pump, passes through basicity and oxygen concentration controls sodium carbonate and becomes
Frequency pumps.
Preferably, when pH probe detects pH value less than 8, sodium carbonate variable frequency pump is opened, sodium carbonate is added, by pH value tune
It saves between 8~8.4.
Preferably, further include online COD detection device, the one or more denitrification sections and nitre for the treatment of tank are set
Change at the water inlet of the upstream of section group and at the water outlet for the treatment of tank, measure the COD amount of sewage, is interlocked with alcohol variable frequency pump.
By chemical system according to the present utility model, coal hydrogen manufacturing CO can be utilized2Tail gas is reacted with alkali generates Na2CO3And
NaHCO3Mixture adjust water process biochemistry pool basicity as inorganic carbon source；Using the waste fusel liquor of coal hydrogen manufacturing as biochemistry
The organic carbon source in pond, energy needed for supplementing denitrifying bacterium.To realize resource utilization, both solves the row of tail gas and waste liquid
Problem, and the medicament as biochemistry pool are put, operating cost has been saved.And this process unit is simple, and occupied area is small, disposably
Investment is low with operating cost, reduces the adding of agent of water process biochemistry pool, achieves good economic benefit.Meanwhile it avoiding
CO2Direct emission reduces greenhouse effects, eliminates the discharge and burning of waste fusel liquor, reduce corresponding water pollution and gas
Pollution.
Detailed description of the invention
Fig. 1 is the flow chart of coal process for making hydrogen；
Fig. 2 is the local flow chart of chemical system according to the present utility model；
Fig. 3 is the local devices artwork of chemical system according to the present utility model.
Specific embodiment
The General Principle of chemical system according to the present utility model is described below with reference to accompanying drawings.
Inventor notices that in the biochemistry pool of sewage treatment, generally there are many mushrooms, mainly in production practice
There are nitrobacteria and denitrifying bacteria, carries out nitration reaction and anti-nitration reaction, we are biochemistry pool carry out nitration reaction
Nitration section, indicated with O；Carry out anti-nitration reaction is denitrification section, is indicated with A.If a biochemistry pool has a nitrification
Section and denitrification section, are expressed as AO, but majority has multiple nitration sections to combine with multiple denitrification sections, is expressed as AxOy, wherein Ax
Which denitrification section indicated, x is natural number from small to large, and Oy indicates y-th of nitration section, and y is natural number from big to small.
Nitration section needs industrial sodium carbonate as inorganic carbon source, is responsible for basicity needed for providing nitrifying process.Basicity is table
Show that water absorbs the parameter of the ability of proton, can usually be demarcated with the substance total amount of strong acid quantitative effect with contained in water.Principle
It is in nitrifying process, the Nitrosomas and Nitromonas of nitration reaction are all chemoautotrophic bacterias, they utilize CO2、CO3 2-、HCO3 -
Deng as carbon source, H will be discharged+To reduce pH, and nitrobacteria is very sensitive to pH variation, most preferably 8~8.4.So mending
Basicity needed for filling nitrifying process is to provide inorganic carbon source to nitrifier, it may also be said to carbonate bases needed for additional nitration process
Degree is to provide inorganic carbon source to nitrifier, when original water basicity deficiency, to discharge H in the reaction process that liquidates+, Optimal pH is maintained, is needed
Supplement basicity.In general, 1 ammoniacal nitrogen (in terms of nitrogen) nitrifies completely, needs basicity (with CaCO3Meter) 7.14g.
Organic carbon source needed for denitrification section needs industrial methanol to provide denitrification process.Principle is that denitrifying bacterium is heterotrophism
Type facultative anaerobic bacteria.In anaerobic respiration, using organic matter as electron donor, using nitrate nitrogen as electron acceptor.Therefore, when in raw water
When carbon-nitrogen ratio is lower, organic carbon source need to be separately added, methanol is now mostly used, because its decomposition product is CO2And H2O does not stay any difficulty
In the intermediate product of degradation, and denitrification rate is high.
For sewage treatment, since water is very big, cause the dosage of industrial sodium carbonate and industrial methanol also very big, medicine
Agent is at high cost.
And the CO of coal hydrogen manufacturing2Contain the CO of high concentration in tail gas2, generally higher than 80%, contain hydrogen partial, carbon monoxide
Deng exhaust temperature is at 30 DEG C or so, discharge pressure 0.16Mpa or so.Its another feature is that discharge amount is very big, such as Shenmu County is chemical
The CO of purity 80%~99% is generated positioned at 600,000 t/a methanol projects of Yulin21,000,000 t/a of tail gas, Shenhua Ningxia coal industry
The CO of purity 80%~98% is generated positioned at 600,000 t/a methanol of Yinchuan of Ningxia Province and 500,000 t/a alkene projects23,000,000 t/ of tail gas
a.And the main component contained in waste fusel liquor is methanol and other polyols.Fusel exhaust temperature generally at 40 DEG C or so, conveying
Pressure is in 0.25MPa or so.
The principles of the present invention are just to provide a kind of chemical system, utilize coal hydrogen manufacturing CO2Tail gas reacts generation with alkali
Na2CO3And NaHCO3Mixture, as inorganic carbon source, to adjust water process biochemistry pool basicity；Waste fusel liquor is as biochemical
The organic carbon source in pond, energy needed for supplementing denitrifying bacterium.It is achieved in resource utilization, has both solved the row of tail gas and waste liquid
Problem is put, CO is reduced2Discharge, reduce greenhouse effects, eliminate the discharge or burning of waste fusel liquor, it is dirty to eliminate corresponding water
Dye and gaseous contamination, and the medicament as biochemistry pool, to CO2Tail gas and waste fusel liquor are used, and turn waste into wealth, and reduce life
The reagent cost for changing pond, reduces equipment, has saved operating cost.And the chemical system structure of the utility model is simple, accounts for
Ground area is small, and one-time investment and operating cost are low, reduces the adding of agent of water process biochemistry pool, achieves good economy
Benefit.
Fig. 2 is the flow chart of chemical system according to the present utility model.
Firstly, utilizing coal hydrogen manufacturing CO2Exhaust gas prepares Na2CO3.As shown in Figure 2, the alkali of alkali inlet tube bundle of lines 45% is first passed through
Liquid 10, which is mended, arrives sodium carbonate preparation tank 1, has liquidometer and blender in sodium carbonate preparation tank 1, remain a constant speed stirring, and industry water is added
11, make the concentration dilution of sodium hydroxide to 5%, after reaching dilution liquid level, after stirring 1h, opens carbon dioxide and be aerated valve,
By CO2Exhaust gas 8 is passed through in sodium carbonate preparation tank 1, reacts carbon dioxide with sodium hydroxide, and reaction equation is as follows:
2NaOH+CO2=Na2CO3+H2O,
To guarantee Na2CO3Concentration saturation, so CO in preparation process2It is a small amount of excessive, part sodium bicarbonate can be generated, is reacted
Formula is as follows:
Na2CO3+H2O+CO2=2NaHCO3,
The Na of preparation2CO3Concentration is 6.625%；CO230 DEG C of exhaust temperature or so, feed flow Q1Nm3/h；Discharge pressure
0.16Mpa or so.Saturation Na obtained2CO3Solution enters sodium carbonate holding vessel 2, at the uniform velocity stirs.Sodium carbonate holding vessel 2 can store up
Saturated sodium carbonate solution is deposited, and is kept stirring uniformly, is waited to be used.
The CO2Exhaust gas can be in coal hydrogen production process with H2Mixed form directly passes through the device containing alkaline solution
In by alkaline solution absorption, and generate sodium carbonate or sodium bicarbonate solution and adjust basicity for subsequent sewage disposal system and make
With being also possible to pass through CO2Exhaust gas removing means, such as physical-chemical absorption absorb CO2Device or using CaO or ammonium hydroxide into
Row chemical absorbing CO2Device, obtain high-purity CO2, high-purity CO for being achieved in that2It can be used for other purposes, or be used further to lead to
Enter to generate sodium carbonate or sodium bicarbonate solution in the alkaline solution containing NaOH makes for subsequent sewage disposal system adjusting basicity
With.
The usually lye that industrially uses is NaOH, but the utility model be not limited to the present embodiment described in NaOH, only
The lye for being able to achieve basicity adjusting can be used, such as KOH.
It continues with and describes waste fusel liquor preparation process referring to Fig. 2.In coal hydrogen generating system, by feed coal 27 in gasification furnace
The CO and pass through after CO changeable device 22, sour gas removing means 23 and hydrogen purification device 24 that middle gasification is generated with oxygen
The hydrogen of acquisition is passed through in methanol device 24 processed, carries out following reaction:
CO+2H2=CH3OH
Product after reaction carries out rectifying through methanol rectifying system 26, obtain the higher refined methanol 33 of purity and methanol and
The waste fusel liquor 9 of the mixed liquors such as polyol.Waste fusel liquor 9 to fusel holding vessel 6, has liquid on fusel holding vessel 6 by pipeline transportation
Position meter and blender, remain a constant speed stirring, waits to be used.
It continues with and describes to use Na in sewage disposal process referring to Fig. 22CO3It adjusts biochemistry pool basicity and is given up using fusel
The method of liquid supplement organic carbon source.Biochemistry pool includes multiple nitration sections 4,4 ' and 5,5 ' group of denitrification section, herein respectively with Ax, Oy
Indicate x-th of denitrification section, x is natural number or y-th of nitration section from small to large, and y is natural number from big to small.It is biochemical
The water inlet 12 in pond generally has online and artificial COD COD detection (C1), and regularly biochemical oxygen demand (BOD) BOD is detected
(B1).Because BOD is not real-time detection, when general operation, can rule of thumb formula, can be deduced by COD amount
BOD amount.When detecting that the BOD into water 12 is less, biochemistry pool A1 denitrification section 4 requires supplementation with organic carbon source, use and fusel
The fusel variable frequency pump 7 that holding vessel 6 connects adds.Biochemistry pool A1 denitrification section 4 has 15 mixed detections of water outlet, pH (D1) and oxygen
Change reduction potential (H1) detection, meanwhile, the water outlet 15 of secondary settling tank 13, i.e., entire biochemistry pool water outlet also has online and artificial COD
It detects (C2), and regularly BOD detects (B2).Similarly, BOD amount can be deduced by COD amount.Online COD detection C1,
The parameters such as C2, D1, H1 and fusel variable frequency pump 7 are chain, control the start and stop of fusel variable frequency pump 7, the frequency of variable frequency pump are adjusted, to control
Effluent quality processed.For example, increasing the frequency of fusel variable frequency pump 7, to improve fusel variable frequency pump 7 when effluent quality is deteriorated
Dosage increases mushroom reaction rate and quantity, to improve biochemistry pool treatment effect.In addition, because fusel compares methanol content
It is more complicated, so the amount of COD difficult to degrade (hard COD) can be increased on a small quantity.Therefore, the difference that should be noted water outlet COD and BOD, from
And adjust fusel adds period and dosage.
The utility model is not limited to the specific situation of the embodiment, and the fusel in the present embodiment can also be directly by coal hydrogen manufacturing system
The refined methanol 33 (see Fig. 1) that system obtains replaces, as long as be able to achieve the amount for adjusting organic carbon source while reducing cost of sewage disposal
Belong to the scope of the utility model.The sequence of nitration section and denitrification section in the present embodiment is also not necessarily limited to shown in Fig. 2, i.e., biochemical
Pond A1 denitrification section 4 can need for biochemistry pool A1 denitrification section 4 to be arranged according to sewage treatment in 5 upstream of biochemistry pool Ox nitration section
In biochemistry pool Ox nitration section downstream.
The water outlet of embodiment shown in Fig. 2 according to the present utility model, biochemistry pool A1 denitrification section 4 enters biochemistry pool Ox
Nitration section 5 because constantly generating acid during nitration reaction, therefore also needs supplement basicity.It is thrown using sodium carbonate variable frequency pump 3
Add sodium carbonate, to adjust basicity, while supplementing inorganic carbon source.The water outlet of sodium carbonate variable frequency pump 3 and biochemistry pool Ox nitration section 5 detects
Index is chain, and pH probe (Dx) and immersion dissolved oxygen in-line analyzer (Hx) are adjusted by in-line meter into caustic alkali
Amount.For example, increasing the frequency of sodium carbonate variable frequency pump 3 when pH is less than 8, to improve the dosage of sodium carbonate variable frequency pump 3, increase
Add adding for caustic alkali, adjust between pH to 8~8.4, increase mushroom reaction rate and quantity, to improve biochemistry pool processing effect
Fruit.Conversely, the basicity of water is larger, is unfavorable for fungus grown, it is desirable to reduce sodium carbonate adds when sodium carbonate is added excessive.
Alkaline solution adjusting can be used directly in the adjusting of the basicity, but usually handled sewage composition is complicated, has
Certain resiliency, that is to say, that basicity can change at any time, therefore directly using alkaline solution regulating effect sometimes not
Ideal, and be adjusted using sodium carbonate, since sodium carbonate has the cushion performance of alkalinity, when the basicity of sewage changes
When, sodium carbonate can provide corresponding basicity according to the basicity of sewage, therefore effect is better than directly being adjusted with alkaline solution.
And in practical application in industry, such as the price of the alkaline matters such as sodium hydroxide is lower than the price of sodium carbonate, therefore utilizes alkalinity
Solution absorbs CO2It prepares sodium carbonate and both can absorb exhaust gas CO2, and sodium carbonate or sodium bicarbonate can be prepared, using sodium carbonate or
Sodium bicarbonate adjusts the basicity and inorganic carbon source of sewage.
Fig. 3 is the local devices artwork of chemical system according to the present utility model.It is shown schematically in the figure and is located at lower part
Biochemistry pool 16, including multiple denitrification sections and nitration section group, denitrification section indicates serial number A1 ... Ax, nitration section difference respectively
Serial number Oy ... O1, denitrification section and the setting of nitration section interval are indicated, in this embodiment, nitration section Ox is arranged in denitrification section
The downstream A1 denitrification section A1 can be arranged in the downstream nitration section Ox according to the needs of sewage treatment.
Upper right quarter schematically shows for introducing sodium carbonate liquor the device for adjusting the basicity of biochemistry pool 16 in Fig. 3, from
A dextrad left side successively includes sodium carbonate preparation tank 1, sodium carbonate storage tank 2 and sodium carbonate variable frequency pump 3.It is generated from coal hydrogen generating system
CO2Exhaust gas 8 and industry water 11, the NaOH solution that concentration is 45% are passed through in sodium carbonate preparation tank 1, in sodium carbonate preparation tank 1
In reacted, react the Na of generation2CO3Solution or NaHCO3Solution is passed through sodium carbonate storage tank 2, and sodium carbonate storage tank 2 connects
There is sodium carbonate variable frequency pump 3, sodium carbonate variable frequency pump 3 is provided with pH and oxidation-reduction potential detection device, measurement biochemistry pool 16
The pH value and oxidation-reduction potential of nitration section Ox, the measurement parameter and sodium carbonate variable frequency pump 3 are chain, control sodium carbonate variable frequency pump 3
Unlatching and stopping.When the sewage basicity of the processing of biochemistry pool 16 changes, Na2CO3Solution or NaHCO3Solution can pass through water
Solution adjusts sewage basicity, and sewage basicity is relatively stably maintained at and needs level.
Upper left quarter schematically shows the methanol for will prepare in coal hydrogen generating system in Fig. 3 or the waste fusel liquor of generation introduces
Biochemistry pool 16 adjusts the device of the organic carbon source in biochemistry pool, from left to right successively includes fusel storage tank 6 and deposits with fusel
Tank connected fusel variable frequency pump 7 is stored up, methanol is prepared in coal hydrogen generating system, generates remaining waste fusel liquor 9 after purifying methanol, it is miscellaneous
Alcohol waste liquid 9 is stored in fusel storage tank 6, and fusel variable frequency pump 7 is provided with COD and water outlet at the denitrification section A1 of biochemistry pool 16
COD detection device, the measurement parameter and fusel variable frequency pump 7 are chain, control the unlatching and stopping of fusel variable frequency pump 7.
Example
In 1,600,000 tons/year of ethylene projects of constant force petrochemical industry (Dalian) refinery Co., Ltd, sewage farm project and coal system
Hydrogen project combines, and coal hydrogen manufacturing CO is handled using this patent2Tail gas and waste fusel liquor, to adjust the basicity and supply of biochemistry pool
Organic carbon source is turned waste into wealth, and good economic benefit and environmental protection effect are achieved.
The project coal hydrogen manufacturing engineering carries out sour gas removing, the CO of abjection using low-temp methanol2Tail gas parameter is as follows:
CO231 DEG C of exhaust temperature, feed flow 1000Nm3/h；Discharge pressure 0.16Mpa.
The project generates a large amount of waste fusel liquors in methanol rectification link, and waste fusel liquor parameter is as follows:
| Component | CH3O | H20 | Other fusels |
| Concentration | 28% | 22% | 49% |
40 DEG C of feed flow 8.3m of fusel exhaust temperature3/ h discharge pressure 0.25MPa.
The utility model is to utilize coal hydrogen manufacturing CO2Tail gas is reacted with alkali generates Na2CO3And the mixture of NaHCO3, as nothing
Machine carbon source adjusts water process biochemistry pool basicity；Using the waste fusel liquor of coal hydrogen manufacturing as the organic carbon source of biochemistry pool, anti-nitre is supplemented
Energy needed for changing bacterium, to realize resource utilization.Not only the emission problem of tail gas and waste liquid had been solved, but also as biochemistry pool
Medicament has saved operating cost.And this process unit is simple, and occupied area is small, and one-time investment and operating cost are low, reduces
The adding of agent of water process biochemistry pool, achieves good economic benefit.Meanwhile avoiding CO2Direct emission reduces greenhouse effect
It answers, eliminates the discharge and burning of waste fusel liquor, reduce corresponding water pollution and gaseous contamination.
Coal hydrogen manufacturing CO2Tail gas and waste fusel liquor resource utilization save operating cost for constant force enterprise, reduce greenhouse gas
The discharge amount of body carbon dioxide reduces power consumption and reagent consumption.Simultaneously as the reduction of reagent consumption, also reduces medicament fortune
Defeated social safety hidden danger caused on the way.Achieve good economic benefit and environmental benefit.Through calculating, this patent technique is used
Afterwards, constant force petrochemical industry Integrated Refinery And Petrochemical Project reduces CO22,116 tons/year of discharge amount, 9,506 tons/year of alkali dosage are reduced, is saved
1,2280000 yuan/year of expense；It reduces organic carbon source and adds 60 tons/year of Isosorbide-5-Nitrae, save 3,600,000 yuan/year of expense.
The utility model is especially the biological denitrificaion patent technique with Suez waterworks Co., Ltd: " a kind of
High ammonia nitrogen coal gasification waste water biological denitrification system " CN205528301U, combines, effect is more excellent, especially realizes denitrification system
Energy conservation, consumption reduction and emission reduction target.The biological denitrificaion patent technique depicts a kind of high ammonia nitrogen coal gasification waste water biological denitrificaion
System is made of level-one biochemistry pool and level-one secondary settling tank, is divided into 4 reaction zones and a degassing district, which is characterized in that four anti-
Answering area includes two-stage anoxic zone and two-stage nitration section.Coal hydrogen manufacturing CO2The mixture that tail gas is reacted with alkali, can be used as inorganic carbon
Source is added to two-stage nitration section, to adjust water process biochemistry pool basicity；Organic carbon source of the waste fusel liquor as biochemistry pool is thrown
It is added to two-stage anoxic zone, energy needed for supplementing denitrifying bacterium.
It should be noted that the embodiment is merely exemplary, not should be is limitations of the present invention, more
Feature in a embodiment can be used in combination to obtain more embodiments of the utility model, the scope of the utility model
It is defined solely by the appended claims.Various deformation form and improved form can be made to the embodiment without departing from this reality
With novel range.
Claims (12)
1. a kind of resource utilization coal hydrogen manufacturing CO2The chemical system of tail gas and waste fusel liquor, which is characterized in that including neighbouring setting
Coal hydrogen generating system and sewage disposal system, in which:
Coal hydrogen generating system is used to generate CO during preparing hydrogen using coal as raw material for preparing hydrogen2Exhaust gas；
Sewage disposal system includes:
One or more groups of denitrification sections, the nitration section being connected in series, denitrification section is used under anaerobic or hypoxia condition, by anti-
Nitrobacteria is by nitrate nitrogen (NO3- N) and nitrite nitrogen (NO2- N) it is reduced into nitrogen, nitration section is connect with denitrification section, is used
It is nitrate or nitrite in passing through nitrobacteria for the ammoxidation in sewage；
Wherein, which further includes sodium carbonate preparation facilities, CO2Exhaust gas and alkaline solution are passed into sodium carbonate preparation dress
It sets, the product of the sodium carbonate preparation facilities is passed through first group or each group of nitration section entrance, for adjusting the basicity of nitration section.
2. chemical system according to claim 1, which is characterized in that the chemical system further includes gasification furnace, is used for coal
Charcoal is vaporized as raw material, generates CO；CO converting means, connect with gasification furnace, the CO for producing gasification furnace be passed through
Steam reaction generate hydrogen and CO2；With alcohol preparation facilities, for being reacted using the CO generated in coal hydrogen generating system with hydrogen
Alcoholic compound is prepared, alcohol preparation facilities is connected to first group or each group of denitrification section entrance, adjusts for being passed through alcoholic compound
Save the organic carbon source concentration of denitrification section.
3. chemical system according to claim 2, which is characterized in that alcohol preparation facilities further includes methanol extraction element, is used
In from alcoholic compound purify methanol；It with waste fusel liquor collection device, connect with methanol extraction element, is mentioned for collecting by methanol
Remaining waste fusel liquor after device is taken, which is connected to denitrification section entrance, for being passed through waste fusel liquor
Adjust the organic carbon source concentration of denitrification section.
4. chemical system according to claim 1, which is characterized in that the downstream of denitrification section is arranged in nitration section.
5. chemical system according to claim 1, which is characterized in that the chemical system further includes CO2Dress is collected in exhaust gas removing
It sets, for the CO generated during hydrogen will to be prepared2Waste gas absorption simultaneously stores.
6. chemical system according to claim 5, which is characterized in that the CO2It is sodium carbonate system that exhaust gas, which removes collection device,
Standby device, in sodium carbonate preparation facilities, CO2Sodium carbonate or sodium bicarbonate are generated with the alkaline solution being passed through.
7. chemical system according to claim 5, which is characterized in that the CO2Exhaust gas removes the CO of collection device storage2
It is passed through sodium carbonate preparation facilities, in sodium carbonate preparation facilities, CO2Sodium carbonate or bicarbonate are generated with the alkaline solution being passed through
Sodium.
8. chemical system according to claim 6 or 7, which is characterized in that the chemical system further includes sodium carbonate variable frequency pump,
It is connected to CO2Exhaust gas removes between the outlet end of collection device and the nitration section entrance of sewage disposal system, is used for from CO2Exhaust gas
Nitration section of the outlet end pumping sodium carbonate or sodium bicarbonate solution of removing collection device to sewage disposal system.
9. chemical system according to claim 2 or 3, which is characterized in that the chemical system further includes alcohol variable frequency pump, connection
To between alcohol preparation facilities outlet end and denitrification section entrance, for alcoholic compound to be pumped from the outlet end of methanol preparation facilities
Methanol is to sewage disposal system.
10. chemical system according to claim 8, which is characterized in that the chemical system further includes pH probe and dissolved oxygen
In-line analyzer is arranged at first for the treatment of tank or the water outlet of each nitration section, joins with sodium carbonate variable frequency pump
Lock controls the unlatching or stopping of sodium carbonate variable frequency pump by basicity and oxygen concentration.
11. chemical system according to claim 10, which is characterized in that when pH probe detects pH value less than 8, open
Sodium carbonate variable frequency pump, adds sodium carbonate, and pH value is adjusted between 8~8.4.
12. chemical system according to claim 9, which is characterized in that further include online COD detection device, be arranged in dirt
At the water inlet of the upstream of one or more denitrification sections and nitration section group of water treating pond and at the water outlet for the treatment of tank, survey
The COD amount for measuring sewage is interlocked with alcohol variable frequency pump, and the unlatching or stopping of alcohol variable frequency pump are controlled by the value of COD.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112279369A (en) * | 2020-09-24 | 2021-01-29 | 浙江大学 | Absorbing CO by alkali liquor2Device and method for reinforcing UASB process performance by backflow |
| CN114685003A (en) * | 2020-12-31 | 2022-07-01 | 中国石油化工股份有限公司 | Treatment method and treatment device for coal-to-hydrogen wastewater |
| CN116637495A (en) * | 2023-07-21 | 2023-08-25 | 内蒙古东华能源有限责任公司 | CO in process of preparing methanol from coal 2 Emission reduction device |
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2018
- 2018-08-01 CN CN201821230550.2U patent/CN208603834U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112279369A (en) * | 2020-09-24 | 2021-01-29 | 浙江大学 | Absorbing CO by alkali liquor2Device and method for reinforcing UASB process performance by backflow |
| CN114685003A (en) * | 2020-12-31 | 2022-07-01 | 中国石油化工股份有限公司 | Treatment method and treatment device for coal-to-hydrogen wastewater |
| CN116637495A (en) * | 2023-07-21 | 2023-08-25 | 内蒙古东华能源有限责任公司 | CO in process of preparing methanol from coal 2 Emission reduction device |
| CN116637495B (en) * | 2023-07-21 | 2023-09-19 | 内蒙古东华能源有限责任公司 | CO in process of preparing methanol from coal 2 Emission reduction device |
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Address after: 3101, 27th Floor, Building 1, Yard 38, East 3rd Ring North Road, Chaoyang District, Beijing, 100026 Patentee after: Suez Environmental Technology (Beijing) Co.,Ltd. Patentee after: HENGLI PETROCHEMICAL (DALIAN) REFINING & CHEMICAL Co.,Ltd. Address before: 100026 31 / F, Taikang financial building, building 1, courtyard 38, East Third Ring Road North, Chaoyang District, Beijing Patentee before: Suez Water Treatment Co,.Ltd. Patentee before: HENGLI PETROCHEMICAL (DALIAN) REFINING & CHEMICAL Co.,Ltd. |
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