CN108889100A - A kind of method of oxidation removal hydrogen sulfide - Google Patents
A kind of method of oxidation removal hydrogen sulfide Download PDFInfo
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- CN108889100A CN108889100A CN201810721639.7A CN201810721639A CN108889100A CN 108889100 A CN108889100 A CN 108889100A CN 201810721639 A CN201810721639 A CN 201810721639A CN 108889100 A CN108889100 A CN 108889100A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/727—Treatment of water, waste water, or sewage by oxidation using pure oxygen or oxygen rich gas
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/102—Oxygen
-
- 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
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Abstract
The present invention relates to a kind of methods of oxidation removal hydrogen sulfide, using the mixture of peroxide or peroxide and oxygen or peroxide and air as oxidant, using the compound with activation as activator, i.e.,：Can generate in aqueous solution carbanion, bicarbonate ion, sulfate ion, borate ion, boric acid hydrogen radical ion, phosphate anion, one hydrogen radical ion of phosphoric acid, dihydrogen phosphate ions compound be activator, activator and oxidant were blended in -15~85 DEG C of standings after 1~45 minute, it is mixed and stirred for reacting with hydrogen sulfide solution, or hydrogen sulfide gas is passed through hydrogen sulfide absorption liquid and is reacted.Under the conditions of weak base, the hydrogen sulfide stripping rate of method of the invention is up to 96%~99% or more, and, product safety non-pollution reaction after smaller to equipment extent of corrosion.
Description
Technical field
The present invention relates to a kind of methods of oxidation removal hydrogen sulfide, more particularly to by certain activator solution and hydrogen peroxide
Compounding forms peroxide, to aoxidize in water or gas form hydrogen sulfide.This method is suitable for processing and is dissolved in city
Hydrogen sulfide in effluent sewerage or industrial wastewater, the hydrogen sulfide in natural gas, biogas and in other industrial tail gas, there are also fossils
The hydrogen sulfide that fuel combustion generates.Belong to hydrogen sulfide treatment technology
Background technique
Add hydrogen, rubber tail gas, biogas production, municipal wastewater processing and livestock and poultry cultivation etc. in natural gas, coke-stove gas, fuel oil
Sulfide is widely present in industrial sector tail gas and in fossil fuel.Moreover, also contain in municipal wastewater and agricultural chemicals waste water
There is a large amount of sulfide.Sulfide can be divided into organic sulfur and inorganic sulfur.Organic sulfur contaminant is many kinds of, mainly includes carbonyl
Sulphur, carbon disulfide, methyl mercaptan, ethyl mercaptan, methyl sulfide, propanethiol, butanethiol, dimethyl disulfide, ethyl sulfide and thiophene etc..
Its pollution modes is that burning generates inorganic sulphide to pollute environment or itself and have poison, pollutes environment, harmful to health
Also there is powerful corrosivity.Inorganic sulfur mainly includes hydrogen sulfide, sulfur dioxide and sulfur trioxide.Wherein hydrogen sulfide is that have to dislike
Smelly gas, energy loss evil human body respiration center, causes cell tissue severe depletion of oxygen or even threat to life.The gas wink of high concentration
Between make one hyposphresia, danger can not be discovered, when concentration is more than 1000ppm, moment causing death.Hydrogen sulfide has stronger
Acid and corrosivity, can cause heavy corrosion to industrial equipment and pipeline.In city sewer, hydrogen sulfide is also concrete row
The main reason for waterpipe corrodes.Hydrogen sulfide can not only cause that catalyst poisoning, the production cost increases, product in the industrial production
A series of problems, such as quality declines, still causes one of the arch-criminal of atmosphere pollution.Hydrogen sulfide can cause greenhouse effects and ozone
The destruction of layer, belongs to one of the environmental contaminants that must be eliminated or control.Therefore, the improvement and new technology of Sulfide treatment technology
Exploitation, one of the problem of becoming urgent need to resolve in field of environment pollution control, and hydrogen sulfide because its smell is smelly, harm is big,
The reasons such as distribution is wide, source is more become emphasis in Sulfide treatment technology and deal with objects.
There are mainly four types of the removing process of the organic sulfur generallyd use both at home and abroad at present, i.e. hydroconversion process, pyrolysismethod, water
Solution and absorption method.First three technique be all by organic sulfur under the action of catalyst, be converted to hydrogen sulfide, then use other de- nothings
The method of machine sulphur removes.As CN1067828A discloses one kind containing ammonia or petrochemical materials qi exhaustion organic sulfur and hydrogen sulfide technology
(i.e. sulfide hydrogen 0-20ppm, carbonyl sulfur and carbon disulfide are less than 10ppm, the process gas of total sulfur 0-30ppm), scheme are first
With modified activated carbon or iron oxide treatment hydrogen sulfide, organic sulfur then is decomposed with hydrolysis desulfurizing agent and generates hydrogen sulfide, is finally used again
The hydrogen sulfide that active carbon or the further absorbing and removing of iron oxide generate.But this method uses a variety of desulfurizing agents and hydrolysis desulfurization
Agent, complex process, operating cost are high.Meanwhile absorption method is that organic sulfur in gas is absorbed and fixed at solid using adsorbent to inhale
Attached dose of surface, the organic sulfur of adsorption saturation are difficult to be regenerated at normal temperature, such as directly replace adsorbent, and adsorbent cost is taken
With height, large labor intensity when replacement, and belong to dangerous solid waste containing organic sulfur absorbent after replacing, it is difficult to it handles.
The hydrogen sulfide that inorganic sulfur or organic sulfur conversion generate is the most important plateform molecules of sulfide removal, minimizing technology
It is varied, wet process and dry method two major classes can be divided into according to removing process.Dry desulfurization has carbon-based material to adsorb desulfurization, molecular sieve
Adsorb the conversions such as desulfurization, metal oxide desulfurization, other adsorbents absorption desulfurization, Membrane Desulphurization, Claus (Crouse) method
Desulfurization.Dry desulfurization condition of compatibility is wide, easy to operate to equipment no corrosion, but Sulfur capacity is smaller, and desulfurizing agent is not easy to regenerate,
Desulfurization under the removing of vulcanization chlorine body or high temperature mostly suitable for small-scale low concentration.Wet desulphurization has chemical oxidation desulfurization, hydramine
The Wettings such as solution Absorption Desulfurization, ionic liquid sulfur removal technology, biological desulphurization etc..Wet processing desulfurization load is strong, removal rate
Height, but equipment is easily caused to corrode, operating cost is high, and is unsuitable for hot conditions, is chiefly used in large-scale industry gas sweetening at present.
Desulfurizing agent selected by wet desulphurization is the key that process exploitation, it determines process costs, operability and phase
The secondary pollution answered.It is mostly at present chemical oxidation desulfuration reagent using wet desulphurization agent, such as utilizes the Strong oxdiative energy of metal ion
Power uses the desulfurization of the oxidation removals hydrogen sulfide such as arsyl, vanadium base, iron-based, heteropoly compound or phthalocyanine compound and Recovered sulphur
Technique.Wherein arsyl sulfur removal technology is more toxic due to itself, is not used substantially at present.Anthraquinone disulphonate (ADA) work
Skill is one kind of vanadium base technique, it is good to hydrogen sulfide selective, and gas sulfur amount can be lower than 1ppm, but the mill solution after purification
Oxidation rate is too slow after absorbing hydrogen sulfide, and by-product is more, and is based on environmental requirement, and vanadium base sulfur removal technology is also limited.Phase
For, iron-based sulfur removal technology is more suitable for following development and application, and such as LO-CAT technique, method and technology is reliable, sulfur recovery rate
Up to 99%, but the technology is still by strict patent protection, and space occupied is big, and cost of investment is higher, at the same in stability, again
Raw etc. existing defects.Heteropoly compound is cheap and easy to get, and desulfurization degree is higher, and regenerates simply, is a kind of with development potentiality
Desulfurizing agent.
, all there are some drawbacks in traditional desulfurization technology.It is increasingly stringent with environmental regulation, develop efficient, low investment,
Recycling, technology without secondary pollution have become the mainstream of desulfurization technology development.
Fenton technology (Pignatello et al., Environment Science& based on activated hydrogen peroxide
Technology 2006) and its improved system, if light helps Fenton (CN1636893), Fenton (CN1789150),
Fenton/O3(CN101311130), Fenton/ ultrasonic wave (CN1546395) etc. with good application prospect, is suitable for fast
Speed processing high-concentration waste water.But it still has the disadvantage that:1) metal ion largely dissolves out, and forms secondary pollution；2) reaction is by pH
Limitation is serious (such as Fenton system is needed in pH3-4 processing), 3) equipment investment is big (such as wet oxidation), to high density pollution
Object or gas pollutant are not applicable.
Summary of the invention
The present invention is a kind of method for disclosing very efficient oxidation of sulfureted hydrogen for overcome the deficiencies in the prior art.It should
The prices of raw materials used in method are cheap, are easily obtained, and the product safety non-pollution after reaction.The pH value model of reaction system
Enclosing is 7 to 9, smaller to equipment extent of corrosion.
The present invention is achieved by the following technical solutions：
A kind of method of oxidation removal hydrogen sulfide, described method includes following steps：
(1) hydrogen sulfide absorption liquid is prepared：With peroxide or peroxide and oxygen or peroxide and air
Mixture is as oxidant, using the compound with activation as activator, i.e.,：Can generate in aqueous solution carbonate from
Son, bicarbonate ion, sulfate ion, borate ion, boric acid hydrogen radical ion, phosphate anion, one hydrogen radical ion of phosphoric acid,
The compound of dihydrogen phosphate ions is activator, and activator and oxidant mixing are stood, and dwell temperature is -15 to 85 DEG C,
Time of repose 1 to 45 minute, obtain hydrogen sulfide absorption liquid；
(2) hydrogen sulfide absorption liquid is mixed and stirred for reacting with hydrogen sulfide solution, or hydrogen sulfide gas is passed through vulcanization
Hydrogen absorbing liquid is reacted, and the reaction time 1 to 200 minute, pH value when reaction was 6~12；Wherein, it is activated in the absorbing liquid
The molal weight of agent is the 3/1 to 50/1 of hydrogen sulfide, and a mole metering for oxidant is the 30/1 to 500/1 of hydrogen sulfide；Described
Sulfureted hydrogen gas concentration range is in 1~1000ppm, and the range of flow for being passed through absorbing liquid is 0.1~20L/min, and gas is in liquid
Time of arrheaing between body is 1~200 minute.
The peroxide is organic peroxide or inorganic peroxide；The organic peroxide is tert-butyl mistake
Hydrogen oxide (TBHP), tertiary amyl hydrogen peroxide (TAHP), di-tert-butyl hydrogen peroxide (DTBHP), cyclohexyl hydroperoxide
(CHHP), isopropyl benzene hydroperoxide (CHP), diisopropylbenzene hydroperoxide (DBHP), p-menthane hydroperoxide (PMHP), peroxidating two
One or more of isopropylbenzene (DCP), azodiisobutyronitrile (AIBN), cyclohexanone peroxide (CYP)；The inorganic peroxy
Compound is postassium hypochlorite, potassium permanganate, potassium bichromate, hypochlorous acid, nitrogen dioxide (NO2), dinitrogen pentoxide (N2O5), ozone, oxygen
One of gas is a variety of；Peroxide concentration range is 0.001 to 10M.
The compound with activation is bicarbonate compound solution, carbonate compound solution, dioxy
Change carbon aqueous solution, Aqueous Solution of Sulfur Dioxide, sulfur trioxide aqueous solution, sulfate liquor, borate solution, boric acid hydrogen salt solution,
One of phosphate solution, dibasic alkaliine solution, phosphate dihydrogen salt solution are a variety of, wherein acid ion is dense in solution
Degree is 0.001 to 10M.
Hydrogen sulfide content is 0.1 to 10000ppm in hydrogen sulfide solution.
The hydrogen sulfide absorption liquid and the mixed pH value of hydrogen sulfide solution is 7-9.
The pH value when hydrogen sulfide gas is passed through the reaction of hydrogen sulfide absorption liquid is 7-9.
Reaction pressure in the step (2) is 0.05 to 0.5MPa.
The present invention has following advantage：
Temperature when reaction reduces energy consumption close to room temperature；The pH value range of reaction system is alkalescent, reduces strong acid and strong base
Use, while also reducing the corrosion to equipment；Reaction unit structure is uncomplicated, production easy to process, reduces primary construction and throws
Money；Product safety non-pollution after reaction.
Detailed description of the invention：
Fig. 1 is the experimental provision of embodiment 1.
Wherein：1, nitrogen cylinder；2, flowmeter；3, vulcanize hydrogen producing apparatus；4, surge flask；5, active oxidation absorption plant；
6, acetic acid zinc solution；7, sodium hydroxide solution
Specific implementation method
The present invention is further elaborated below by way of specific embodiment：
Example 1
Reagent prepares：200g/L sodium hydroxide solution (CAS:1310-73-2, analysis is pure, and Shanghai Ling Feng chemical reagent is limited
Company), 1M hydrochloric acid solution (CAS:7647-01-0 analyzes pure, Shanghai Ling Feng chemical reagent Co., Ltd), 5g/L zinc acetate is molten
Liquid (CAS:557-34-6 analyzes pure, the upper smooth Science and Technology Co., Ltd. of Haitai), 50g/L iodine stock solution (CAS:7553-
56-2 analyzes pure, the upper smooth Science and Technology Co., Ltd. of Haitai), 5g/L iodine solution, 0.01M sodium thiosulfate standard titration solution
(CAS:10102-17-7 analyzes pure, Shanghai Ling Feng chemical reagent Co., Ltd), 5g/L starch indicator solution (CAS:9005-25-
8, analyze pure, the upper smooth Science and Technology Co., Ltd. of Haitai).The above reagent is by the standard preparation in GB/T11060.1-1998.
Experimental provision is as shown, with simulation process sulfide hydrogen exhaust gas.Having quality in there-necked flask is the nine water sulphur of 2.4mg
Change sodium, excess phosphoric acid is added, generates hydrogen sulfide gas.When reaction sufficiently after, the vulcanization that will be remained in there-necked flask using nitrogen
Hydrogen is purged into the absorption plant for having 100mL active oxidation liquid, purge time 3min, nitrogen flow 8L/min.Not by oxygen
The hydrogen sulfide gas of change enters in the absorption bottle equipped with excessive acetic acid zinc, subsequently enters in the alkali wash water equipped with sodium hydroxide solution
It is flowed out to prevent not oxidized hydrogen sulfide.After purging, zinc acetate absorption bottle is removed, accurate addition 10mL iodine solution, then plus
Enter 10mL hydrochloric acid, cover bottle stopper immediately and gently shake, after being placed in dark place 5min, is titrated to sodium thiosulfate standard solution micro- light
1-2mL starch indicator is added in yellow, continues to be titrated to the disappearance of solution blue.The de- of hydrogen sulfide can be obtained using following formula
Except rate：
Wherein, V1When for blank titration, sodium thiosulfate standard solution consumption, Unit/mL；V2When to be titrated after degassing, sulphur
Sodium thiosulfate standard solution consumption, Unit/mL；C is the concentration of sodium thiosulfate standard titration solution, unit mol/L；M is vulcanization
Hydrogen sample makings amount, unit g.
The peroxide that the formula of active oxidation liquid is the sodium bicarbonate that initial concentration is 0.016M and initial concentration is 0.024M
Change hydrogen.After the two hybrid reaction stands 30 minutes, then it is passed through hydrogen sulfide gas.Reaction temperature is 25 DEG C.In pH=7.42, sulphur
Changing hydrogen conversion ratio is 99.36%.In pH=7.77, hydrogen sulfide conversion ratio is 99.02%.In pH=8, hydrogen sulfide conversion ratio
It is 99.03%.In pH=8.5, hydrogen sulfide conversion ratio is 98.34%.
Example 2
The present invention uses nine water vulcanized sodium (CAS：131-84-4 analyzes pure, the upper smooth Science and Technology Co., Ltd. of Haitai) it is molten
To simulate sulfide hydrogen waste water in ultrapure water, and with boric acid (CAS：10043-35-3 analyzes pure, the smooth scientific and technological share of upper Haitai
Co., Ltd)-borax (CAS：1303-96-4 analyzes pure, the upper smooth Science and Technology Co., Ltd. of Haitai) buffer adjusts to needs
PH value.Nine water sodium sulfide solution concentration are 10-4M.Using sodium bicarbonate (CAS：144-55-8 analyzes pure, Shanghai icepro peaking
Learn reagent Co., Ltd) solution is as activator.Add 0.1M sodium chloride (CAS：7647-14-5 analyzes pure, Chinese medicines group
Learn reagent Co., Ltd) maintain solution ion strength.Add EDTA (CAS：6381-92-6 analyzes pure, Shanghai Ling Feng chemistry examination
Agent Co., Ltd) metal ion is reduced to hydrogen peroxide ((CAS:7722-84-1, purity=30wt%, the examination of Chinese medicines group chemistry
Agent Co., Ltd) catalytic action.
Silver/the sulfide ionic selective electrode and C (K2SO4) -1 produced using Shanghai INESA Scientific Instrument Co., Ltd.
Reference electrode measures the current potential of sulphion, with Shanghai INESA Scientific Instrument Co., Ltd. produce PXSJ-226 from
The son meter current potential of acquisition in every five seconds, and draw current potential-time diagram.Desulfurization degree is calculated using following formula：
Wherein：F is Faraday constant, 96487C/mol；R is gas constant, 8.314J/ (mol*K)；T is temperature, unit
K；E is measurement current potential, unit mV；τ is time, unit s.
Then, sodium bicarbonate solution and hydrogenperoxide steam generator mixing stand 30 minutes, and solution is mixed with hydrogen sulfide solution
And be stirred to react, until hydrogen sulfide is reacted completely.
Sodium bicarbonate initial concentration is 0.012M, and hydrogen peroxide initial concentration is 0.024M, and hybrid reaction stands 30 minutes
Afterwards, with hydrogen sulfide solution hybrid reaction, the reaction time 180 seconds, 25 DEG C of reaction temperature, sulphion is detected with sulfide-selective electrode
Current potential.In pH=7.42, hydrogen sulfide conversion ratio is 99.21%.In pH=7.77, hydrogen sulfide conversion ratio is 98.37%.?
When pH=8, hydrogen sulfide conversion ratio is 98.61%.In pH=8.28, hydrogen sulfide conversion ratio is 98.12%.In pH=8.5
When, hydrogen sulfide conversion ratio is 96.17%.
Claims (8)
1. a kind of method of oxidation removal hydrogen sulfide, which is characterized in that described method includes following steps：
(1) hydrogen sulfide absorption liquid is prepared：With the mixing of peroxide or peroxide and oxygen or peroxide and air
Object is as oxidant, using the compound with activation as activator, i.e.,：Carbanion, carbon can be generated in aqueous solution
Sour hydrogen radical ion, sulfate ion, borate ion, boric acid hydrogen radical ion, phosphate anion, one hydrogen radical ion of phosphoric acid, phosphoric acid
The compound of dihydro radical ion is activator, and activator and oxidant mixing are stood, and dwell temperature is -15 to 85 DEG C, is stood
Time 1 to 45 minute, obtain hydrogen sulfide absorption liquid；
(2) hydrogen sulfide absorption liquid is mixed and stirred for reacting with hydrogen sulfide solution, or hydrogen sulfide gas is passed through hydrogen sulfide and is inhaled
It receives liquid to be reacted, the reaction time 1 to 200 minute, pH value when reaction is 6~12；Wherein, activator in the absorbing liquid
Molal weight is the 3/1 to 50/1 of hydrogen sulfide, and a mole metering for oxidant is the 30/1 to 500/1 of hydrogen sulfide.
2. a kind of method of oxidation removal hydrogen sulfide as described in claim 1, which is characterized in that the peroxide is organic
Peroxide or inorganic peroxide；The organic peroxide is tert-butyl hydroperoxide, tertiary amyl hydrogen peroxide, two uncles
Butylhydroperoxide, cyclohexyl hydroperoxide, isopropyl benzene hydroperoxide, diisopropylbenzene hydroperoxide, p-menthane hydroperoxide, peroxide
Change one or more of diisopropylbenzene (DIPB), azodiisobutyronitrile, cyclohexanone peroxide；The inorganic peroxide is hypochlorous acid
One of potassium, potassium permanganate, potassium bichromate, hypochlorous acid, nitrogen dioxide, dinitrogen pentoxide, ozone, oxygen are a variety of；Peroxide
Compound concentration range is 0.001 to 10M.
3. a kind of method of oxidation removal hydrogen sulfide as described in claim 1, which is characterized in that described has activation
Compound be bicarbonate compound solution, carbonate compound solution, arbon dioxide solution, Aqueous Solution of Sulfur Dioxide,
Sulfur trioxide aqueous solution, sulfate liquor, borate solution, boric acid hydrogen salt solution, phosphate solution, dibasic alkaliine solution,
One of phosphate dihydrogen salt solution is a variety of, wherein acid ion concentration is 0.001 to 10M in solution.
4. a kind of method of oxidation removal hydrogen sulfide as described in claim 1, which is characterized in that hydrogen sulfide in hydrogen sulfide solution
Content is 0.1 to 10000ppm.
5. a kind of method of oxidation removal hydrogen sulfide as described in claim 1, which is characterized in that the hydrogen sulfide gas is dense
Range is spent in 1~1000ppm, and the range of flow for being passed through absorbing liquid is 0.1~20L/min, and gas arrheas the time between liquid
It is 1~200 minute.
6. a kind of method of oxidation removal hydrogen sulfide as described in claim 1, which is characterized in that the hydrogen sulfide absorption liquid
It is 7-9 with the mixed pH value of hydrogen sulfide solution.
7. a kind of method of oxidation removal hydrogen sulfide as described in claim 1, which is characterized in that the hydrogen sulfide gas is logical
PH value when entering the reaction of hydrogen sulfide absorption liquid is 7-9.
8. a kind of method of oxidation removal hydrogen sulfide as described in claim 1, which is characterized in that in the step (2)
Reaction pressure is 0.05 to 0.5MPa.
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| CN113082960A (en) * | 2021-04-09 | 2021-07-09 | 辽宁科技大学 | Eutectic solvent for wide temperature window flue gas desulfurization and production and regeneration method thereof |
| CN115178073A (en) * | 2022-08-08 | 2022-10-14 | 衍循环境科技(甘肃)有限公司 | Deodorant and preparation method thereof |
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| CN113082960A (en) * | 2021-04-09 | 2021-07-09 | 辽宁科技大学 | Eutectic solvent for wide temperature window flue gas desulfurization and production and regeneration method thereof |
| CN113082960B (en) * | 2021-04-09 | 2022-05-20 | 辽宁科技大学 | Eutectic solvent for wide temperature window flue gas desulfurization and production and regeneration method thereof |
| CN115178073A (en) * | 2022-08-08 | 2022-10-14 | 衍循环境科技(甘肃)有限公司 | Deodorant and preparation method thereof |
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