CN110437906A - A kind of Complexing Iron biological desulfurization process - Google Patents
A kind of Complexing Iron biological desulfurization process Download PDFInfo
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- CN110437906A CN110437906A CN201910832742.3A CN201910832742A CN110437906A CN 110437906 A CN110437906 A CN 110437906A CN 201910832742 A CN201910832742 A CN 201910832742A CN 110437906 A CN110437906 A CN 110437906A
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- CN
- China
- Prior art keywords
- complexing iron
- desulfurization process
- salt solution
- hydrogen sulfide
- complexing
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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
-
- 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
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/84—Biological processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/95—Specific microorganisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/24—Hydrocarbons
- B01D2256/245—Methane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a kind of Complexing Iron biological desulfurization process, the technique is using the internal desulfurizing tower with biologic packing material, and the nutrient salt solution of desulfurization tower bottom is pumped at the top of desulfurizing tower using circulating pump, the technique further include: the Complexing Iron of 0.02-0.2wt% is added in nutrient salt solution.In debugging early stage, Complexing Iron can be by way of chemical oxidation by the elemental sulfur that is oxidized to of hydrogen sulfide in methane, and the elemental sulfur of generation can be used as nutriment and the breeding of microorganism is promoted to shorten debugging cycle to greatly promote the reproduction speed of microorganism.
Description
Technical field
The present invention relates to methane bio-desulfurization technical field, especially a kind of Complexing Iron biological desulfurization process.
Background technique
Biogas be the organic substances such as agricultural crop straw, livestock and poultry feces, kitchen garbage under anaerobic, by microorganism
A kind of mixed gas that fermentation generates, the main component of biogas are methane and carbon dioxide, also contain a small amount of nitrogen, oxygen
The ingredients such as gas, hydrogen and hydrogen sulfide.The utilization of biogas with generate electricity with refining natural gas based on, had become as renewable energy
The important component of China's energy strategy.Hydrogen sulfide have corrosivity, and burn utilize during can be converted into dioxy
Change sulphur, being discharged into atmosphere will form sour gas pollution, seriously affect environment.Therefore, it is needed before marsh gas power generation or purification pair
Biogas is purified, and hydrogen sulfide gas therein is removed.
Classify according to the removing principle of hydrogen sulfide, physical method removing hydrogen sulfide, chemical method removing vulcanization can be divided into
Hydrogen and bioanalysis remove hydrogen sulfide.
Bioanalysis desulfurization is that biogas is introduced into desulfurizing tower, has biologic packing material inside desulfurizing tower, and utilize circulating pump
The nutrient salt solution of desulfurization tower bottom is pumped at the top of desulfurizing tower, flows through biologic packing material from top to bottom.Biogas is in uphill process
Biologic packing material contact is neutralized, realizes desulfurization under the action of microorganism.But existing biological desulphurization needs in advance to microorganism
Growth is debugged, and debugging cycle is probably at one month as long as, than relatively time-consuming.
Summary of the invention
The purpose of the present invention is to provide a kind of biological desulfurization process for reducing biological desulphurization debug time.
To achieve the above object, in a first aspect, the present invention provides a kind of Complexing Iron biological desulfurization process, the technique is used
Inside has the desulfurizing tower of biologic packing material, and the nutrient salt solution of desulfurization tower bottom is pumped into desulfurization tower top using circulating pump
Portion, the technique further include:
The Complexing Iron of 0.02-0.2wt% is added in nutrient salt solution.
Further, the technique further include: the hydrogen sulfide content of detection biogas middle outlet, if achieving the desired results,
No longer have additional nutrients the content of Complexing Iron in salt.
Further, the technique further include:
When the hydrogen sulfide in biogas exceeds the design value of biological desulphurization, by increasing a small amount of Complexing Iron, to reach
Treatment effect.
Further, the additive amount of the nutrient salt solution Complexing Iron is 0.1wt%.
Compared with prior art, of the invention to have the following beneficial effects: that, in debugging early stage, Complexing Iron pass through chemistry
By the elemental sulfur that is oxidized to of hydrogen sulfide in methane, the elemental sulfur of generation can be used as nutriment and promotes microorganism the mode of oxidation
Breeding shorten debugging cycle to greatly promote the reproduction speed of microorganism.
Detailed description of the invention
Fig. 1 is that the structure of desulphurization system used by a kind of Complexing Iron biological desulfurization process provided in an embodiment of the present invention is shown
It is intended to.
Specific embodiment
Several illustrative embodiments shown in below with reference to the accompanying drawings describe the principle and spirit of the invention.It should
Understand, describe these embodiments just for the sake of make those skilled in the art can better understand that in turn realize the present invention,
And this scope of the present invention is not limited in any way.
Referring to FIG. 1, the embodiment of the present invention provides a kind of Complexing Iron biological desulfurization process, it can be using shown in FIG. 1 de-
Sulphur service system is completed.The desulphurization system includes a desulfurizing tower, has biologic packing material in desulfurizing tower.The bottom of desulfurizing tower is logical
Piping connects nutrition salt pond, additionally passes through piping connection tap water.The bottom of desulfurizing tower is connected to de- by circulation line
The tower top of sulphur tower, so that the nutrient salt solution that conveying comes is pumped into top, after nutritive salt is fallen, by biologic packing material, biogas
It is contacted in uphill process with biologic packing material, realizes desulfurization under the action of microorganism.
Complexing Iron biological desulfurization process provided in an embodiment of the present invention, thes improvement is that, adds in nutrient salt solution
0.02-0.2wt% Complexing Iron (i.e. weight percentage be nutrient salt solution 0.02-0.2% Complexing Iron).It is early in debugging
Phase, Complexing Iron can be by way of chemical oxidations by the elemental sulfur that is oxidized to of hydrogen sulfide in methane, and the elemental sulfur of generation can be with
Promote the breeding of microorganism as nutriment, to greatly promote the reproduction speed of microorganism, shortening debugging cycle (can be incited somebody to action
The limber up period of biological desulphurization shortened to for 2 week).The additive amount of nutrient salt solution Complexing Iron is specifically as follows 0.1wt%.
In some embodiments, above-mentioned technique further include: the hydrogen sulfide content of detection biogas middle outlet, if reaching expected effect
Fruit, the then content of Complexing Iron in the salt that no longer has additional nutrients.Specifically, it is contemplated that effect be from the hydrogen sulfide content of biogas middle outlet,
Namely the effect judgement of system removing hydrogen sulfide, Complexing Iron are dissolved in nutritive salt, and nutritive salt requires supplementation with, and adds
Complexing Iron concentration range be always 0.02wt%-0.2wt%.
Further, technique further include:
When the hydrogen sulfide in biogas exceeds the design value of biological desulphurization, by increasing a small amount of Complexing Iron, to reach
Treatment effect.
Judged according to the concentration of emission of hydrogen sulfide in methane, after returning within design value, stop addition, addition it is dense
Degree remains 0.02%-0.2% in nutritive salt.
In the actual operation process, two kinds of nutritive salt can be used, one kind wherein containing Complexing Iron, and one kind does not contain, and opens
Using the nutritive salt containing Complexing Iron when dynamic debugging and exceeded, using without containing complexing when normal operation
The nutritive salt of iron.
Specific case used herein elaborates inventive concept, the explanation of above example is only intended to
Help understands core of the invention thought.It should be pointed out that for those skilled in the art, not departing from this
Under the premise of inventive concept, any obvious modification, equivalent replacement or the other improvements made should be included in the present invention
Protection scope within.
Claims (4)
1. a kind of Complexing Iron biological desulfurization process, the technique utilizes circulation using the internal desulfurizing tower with biologic packing material
The nutrient salt solution of desulfurization tower bottom is pumped at the top of desulfurizing tower by pump, which is characterized in that the technique further include:
The Complexing Iron of 0.02-0.2wt% is added in nutrient salt solution.
2. Complexing Iron biological desulfurization process according to claim 1, which is characterized in that the technique further include: detection natural pond
The hydrogen sulfide content of gas middle outlet, if achieving the desired results, the content of Complexing Iron in the salt that no longer has additional nutrients.
3. Complexing Iron biological desulfurization process according to claim 1, which is characterized in that the technique further include:
When the hydrogen sulfide in biogas exceeds the design value of biological desulphurization, by increasing a small amount of Complexing Iron, to reach processing
Effect.
4. Complexing Iron biological desulfurization process according to claim 1, which is characterized in that the nutrient salt solution Complexing Iron
Additive amount is 0.1wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910832742.3A CN110437906A (en) | 2019-09-04 | 2019-09-04 | A kind of Complexing Iron biological desulfurization process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910832742.3A CN110437906A (en) | 2019-09-04 | 2019-09-04 | A kind of Complexing Iron biological desulfurization process |
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| CN110437906A true CN110437906A (en) | 2019-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330425A (en) * | 2020-03-11 | 2020-06-26 | 唐山绿源环保科技有限公司 | Biological desulfurization system of desorption high concentration hydrogen sulfide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354038A (en) * | 2001-10-30 | 2002-06-19 | 南化集团研究院 | Improved complex iron method for removing sulfide from gas |
| CN1398659A (en) * | 2002-09-09 | 2003-02-26 | 魏雄辉 | Biochemical iron-alkali solution catalyzing process for desulfurizing gas |
-
2019
- 2019-09-04 CN CN201910832742.3A patent/CN110437906A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354038A (en) * | 2001-10-30 | 2002-06-19 | 南化集团研究院 | Improved complex iron method for removing sulfide from gas |
| CN1398659A (en) * | 2002-09-09 | 2003-02-26 | 魏雄辉 | Biochemical iron-alkali solution catalyzing process for desulfurizing gas |
Non-Patent Citations (1)
| Title |
|---|
| 甘福丁: "《规模化畜禽养殖场沼气工程》", 30 June 2016, 广西科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330425A (en) * | 2020-03-11 | 2020-06-26 | 唐山绿源环保科技有限公司 | Biological desulfurization system of desorption high concentration hydrogen sulfide |
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Address after: 102412 1 / F 101 1 / F 01, building 23, yard 69, Yanfu Road, Fangshan District, Beijing Applicant after: Beijing yingherui Environmental Technology Co.,Ltd. Address before: 102412 Building 23, No. 69, Yancun Town Internet Financial Security Demonstration Industrial Park, Fangshan District, Beijing Applicant before: BEIJING YINGHERUI ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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Application publication date: 20191112 |