CN105964121A - Anaerobic fermentation pre-desulfurization method and device - Google Patents
Anaerobic fermentation pre-desulfurization method and device Download PDFInfo
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- CN105964121A CN105964121A CN201610541706.8A CN201610541706A CN105964121A CN 105964121 A CN105964121 A CN 105964121A CN 201610541706 A CN201610541706 A CN 201610541706A CN 105964121 A CN105964121 A CN 105964121A
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- anaerobic fermentation
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- hydrogen sulfide
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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
- B01D53/76—Gas phase processes, e.g. by using aerosols
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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
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- 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
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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
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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
- B01D2251/11—Air
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/05—Biogas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/12—Methods and means for introducing reactants
- B01D2259/122—Gaseous reactants
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Analytical Chemistry (AREA)
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Abstract
The invention discloses an anaerobic fermentation pre-desulfurization method and device. The anaerobic fermentation pre-desulfurization method comprises the following steps: step 1: extracting a marsh gas sample located in an anaerobic fermentation gas storage cavity (8) at the top of an anaerobic fermentation tank; step 2: detecting the content of hydrogen sulfide in the extracted marsh gas sample; and step 3: according to the content of the hydrogen sulfide, introducing air which is 3%-5% of the gas yield of the fermentation tank into the anaerobic fermentation gas storage cavity (8) when the content of the hydrogen sulfide is higher than 1000ppm. The pre-desulfurization device comprises the anaerobic fermentation gas storage cavity (8) mounted at the top of the anaerobic fermentation tank, an air pump (1), an air pipeline (5), a check valve (2), an adjusting valve (3) and a flow meter (4), wherein the air pipeline (5) is used for communicating the air pump to the anaerobic fermentation gas storage cavity (8); the check valve (2) is arranged on the air pipeline (5); the adjusting valve (3) is arranged on the air pipeline (5); and the flow meter (4) is arranged on the air pipeline (5). The rear-end desulfurization cost of a fermentation system is directly reduced, the rear-end desulfurization load is alleviated and the rear-end desulfurization efficiency is improved.
Description
Technical field
The invention belongs to anaerobic fermentation field, relate to a kind of pre-sulfur method of anaerobic fermentation and device.
Background technology
Existing anaerobic fermentation desulphurization system is the most all by directly using dry desulfurization, wet desulphurization, biology after aerogenesis
Method desulfurization etc., owing to the gas of such output does not carries out desulfurization pretreatment, therefore cause final desulphurization cost higher.It addition,
Owing to existing anaerobic fermentation system gas producing efficiency is low and unstable factor, it is impossible to directly use pre-desulphurization system to carry out primary de-
Sulfur.
Summary of the invention
For the problems of the prior art, the invention provides one and directly carry out at pre-desulfurization in anaerobic ferment devices
Reason, thus reduce later stage desulfurization processing cost, improve the pre-sulfur method of anaerobic fermentation of later stage desulfuration efficiency and for corresponding
The pre-desulfurizer of pre-sulfur method.
For realizing above-mentioned mother, the present invention adopts the following technical scheme that
A kind of pre-sulfur method of anaerobic fermentation, comprises the steps:
Step one: extraction is positioned at the biogas sample of the anaerobic fermentation air storing cavity of anaerobic fermentation tank top；
Step 2: the hydrogen sulfide content in the biogas sample of detection extraction；
Step 3: according to the hydrogen sulfide content of detection, when hydrogen sulfide content is higher than 1000ppm, to anaerobic fermentation air storing cavity (8)
Inside it is passed through the air of the 3%-5% of gas production in fermentation tank, carries out chemical reaction by following reaction equation:
H2S+2O2=H2SO4,
H2S+O22=2S+2H2O,
S + H2O + 1.5O22=H2SO4；
Step 4: after the chemical reaction of step 3 kind fully reacts, again the biogas sample in extraction anaerobic fermentation air storing cavity,
Hydrogen sulfide content in the biogas sample of detection extraction, if hydrogen sulfide content is not up to target, repeats step 3；If sulfur
Change hydrogen content and reach target, then complete the pre-desulfurization of anaerobic fermentation.
Further, the air capacity being passed through in anaerobic fermentation air storing cavity in step 3 is not less than detected hydrogen sulfide and contains
Amount times.
Further, the target of the hydrogen sulfide content in step 4 is less than 100ppm.
Present invention also offers a kind of pre-desulfurizer of anaerobic fermentation, including:
It is arranged on the anaerobic fermentation air storing cavity of anaerobic fermentation upper end；
Air pump；
Air line, for being communicated to air pump in anaerobic fermentation air storing cavity；
The check-valves being arranged on air line, for preventing the gas backflow in pipeline from making the return trip empty air pump；
The regulation valve being arranged on air line, for regulating the gas flow in pipeline；
The effusion meter being arranged on air line, for measuring the gas flow in pipeline.
Further, described anaerobic fermentation air storing cavity is made up of the gas storage film covered in anaerobic fermentation upper end, gas storage film
The surrounding outer of surrounding outer and anaerobic fermentation upper end be tightly connected.
Beneficial effect:
The present invention compared with prior art, has the advantage that
1, directly reduce fermentation system rear end desulphurization cost, alleviate the desulfurization load of rear end, and improve rear end desulfuration efficiency；
2, processing cost is run low.Energy consumption consumption is mainly air pump and consumes electric energy；
3, equipment volume is little.Pre-desulfurizer may be mounted at any position that anaerobic reaction pot sidewall is suitable；
4, save manually.Compared with traditional ferrum oxide desulfurization, it is not necessary to frequently reload, effectively save manpower.
Accompanying drawing explanation
Fig. 1 is the anaerobic fermentation pre-desulfurizer schematic diagram of the present invention.
Detailed description of the invention
Purpose and technical scheme for making the embodiment of the present invention are clearer, attached below in conjunction with the embodiment of the present invention
Figure, is clearly and completely described the technical scheme of the embodiment of the present invention.Obviously, described embodiment is the present invention
A part of embodiment rather than whole embodiments.Based on described embodiments of the invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of without creative work, broadly falls into the scope of protection of the invention.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (include technology art
Language and scientific terminology) have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Also should
Being understood by, those terms defined in such as general dictionary should be understood that the meaning having with the context of prior art
The meaning that justice is consistent, and unless defined as here, will not explain by idealization or the most formal implication.
Reference in accompanying drawing is as follows: air pump 1, check-valves 2, regulates valve 3, effusion meter 4, air line 5, material circle
Face 6, gas storage film 7, air storing cavity 8, biogas 9, biogas output pipe 10.
Embodiment 1
As shown in fig. 1, the pre-sulfur method of anaerobic fermentation of the present invention, comprise the steps:
Step one: extraction is positioned at the biogas sample of the anaerobic fermentation air storing cavity 8 of anaerobic fermentation tank top；
Step 2: the hydrogen sulfide content in the biogas sample of detection extraction；
Step 3: according to the hydrogen sulfide content of detection, when hydrogen sulfide content is higher than 1000ppm, to anaerobic fermentation air storing cavity (8)
Inside it is passed through the air of the 3%-5% of gas production in fermentation tank, carries out chemical reaction by following reaction equation:
H2S + 2O2 = H2SO4
H2S + O22= 2S + 2H2O
S + H2O + 1.5O22=H2SO4；
Step 4: after the chemical reaction of step 3 kind fully reacts, again the biogas sample in extraction anaerobic fermentation air storing cavity 8
Product, the hydrogen sulfide content in the biogas sample of detection extraction, if hydrogen sulfide content is not up to target, repeats step 3；If
Hydrogen sulfide content reaches target, then complete the pre-desulfurization of anaerobic fermentation.
Further, the air capacity being passed through in anaerobic fermentation air storing cavity 8 in step 3 is not less than detected hydrogen sulfide
10 times of content.
Further, the target of the hydrogen sulfide content in step 4 is less than 100ppm.
Embodiment 2
As shown in fig. 1, the pre-sulfur method of anaerobic fermentation of the present invention, comprise the steps:
Step one: extraction is positioned at the biogas sample of the anaerobic fermentation air storing cavity 8 of anaerobic fermentation tank top；
Step 2: the hydrogen sulfide content in the biogas sample of detection extraction；
Step 3: according to the hydrogen sulfide content of detection, when hydrogen sulfide content is higher than 1000ppm, to anaerobic fermentation air storing cavity (8)
Inside it is passed through the air of the 3% of gas production in fermentation tank, carries out chemical reaction by following reaction equation:
H2S + 2O2 = H2SO4
H2S + O22= 2S + 2H2O
S + H2O + 1.5O22=H2SO4；
Step 4: after the chemical reaction of step 3 kind fully reacts, again the biogas sample in extraction anaerobic fermentation air storing cavity 8
Product, the hydrogen sulfide content in the biogas sample of detection extraction, if hydrogen sulfide content is not up to target, repeats step 3；If
Hydrogen sulfide content reaches target, then complete the pre-desulfurization of anaerobic fermentation.
Embodiment 3
As shown in fig. 1, the pre-sulfur method of anaerobic fermentation of the present invention, comprise the steps:
Step one: extraction is positioned at the biogas sample of the anaerobic fermentation air storing cavity 8 of anaerobic fermentation tank top；
Step 2: the hydrogen sulfide content in the biogas sample of detection extraction；
Step 3: according to the hydrogen sulfide content of detection, when hydrogen sulfide content is higher than 1000ppm, to anaerobic fermentation air storing cavity (8)
Inside it is passed through the air of the 5% of gas production in fermentation tank, carries out chemical reaction by following reaction equation:
H2S + 2O2 = H2SO4
H2S + O22= 2S + 2H2O
S + H2O + 1.5O22=H2SO4；
Step 4: after the chemical reaction of step 3 kind fully reacts, again the biogas sample in extraction anaerobic fermentation air storing cavity 8
Product, the hydrogen sulfide content in the biogas sample of detection extraction, if hydrogen sulfide content is not up to target, repeats step 3；If
Hydrogen sulfide content reaches target, then complete the pre-desulfurization of anaerobic fermentation.
Embodiment 4
As shown in fig. 1, the pre-sulfur method of anaerobic fermentation of the present invention, comprise the steps:
Step one: extraction is positioned at the biogas sample of the anaerobic fermentation air storing cavity 8 of anaerobic fermentation tank top；
Step 2: the hydrogen sulfide content in the biogas sample of detection extraction；
Step 3: according to the hydrogen sulfide content of detection, when hydrogen sulfide content is higher than 1000ppm, to anaerobic fermentation air storing cavity (8)
Inside it is passed through the air of the 4% of gas production in fermentation tank, carries out chemical reaction by following reaction equation:
H2S + 2O2 = H2SO4
H2S + O22= 2S + 2H2O
S + H2O + 1.5O22=H2SO4；
Step 4: after the chemical reaction of step 3 kind fully reacts, again the biogas sample in extraction anaerobic fermentation air storing cavity 8
Product, the hydrogen sulfide content in the biogas sample of detection extraction, if hydrogen sulfide content is not up to target, repeats step 3；If
Hydrogen sulfide content reaches target, then complete the pre-desulfurization of anaerobic fermentation.
With continued reference to Fig. 1, the pre-desulfurizer of anaerobic fermentation of the present invention, including the anaerobism being arranged on anaerobic fermentation upper end
Fermentation air storing cavity 8；
Including the air pump 1 being arranged on anaerobic fermentation tank limit, it is mainly used to extract air, and carries；
Air line, one end is connected to the gas outlet of air pump, and the other end is connected to the air inlet of anaerobic fermentation air storing cavity 8, uses
In the gas in air pump 1 is sent directly in anaerobic fermentation air storing cavity 8；
The check-valves 2 being arranged on air line 5, for preventing the gas backflow in pipeline from making the return trip empty air pump；
The regulation valve 3 being arranged on air line 5, for regulating the gas flow in pipeline；
The effusion meter 4 being arranged on air line 5, for measuring the gas flow in pipeline.
Further, described anaerobic fermentation air storing cavity 8 is made up of the gas storage film 7 covered in anaerobic fermentation upper end, gas storage
The surrounding outer of film 7 is tightly connected with the surrounding outer of anaerobic fermentation upper end.
The mainly desulfurization pre-to anaerobic fermentation system of this device processes, and the air of air pump 1 output is regulated flow by regulating valve 3
The flow of meter 4, flows through air line 5 and enters air storing cavity 8, defeated from biogas output pipe 10 after the air of entrance and biogas 9 reaction
Send.
Above-described embodiment is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill of the art
For personnel, under the premise without departing from the principles of the invention, it is also possible to making some improvement and equivalent, these are to the present invention
Claim improve with equivalent after technical scheme, each fall within protection scope of the present invention.
Claims (4)
1. the pre-sulfur method of anaerobic fermentation, it is characterised in that comprise the steps:
Step one: extraction is positioned at the biogas sample of the anaerobic fermentation air storing cavity (8) of anaerobic fermentation tank top；
Step 2: the hydrogen sulfide content in the biogas sample of detection extraction；
Step 3: according to the hydrogen sulfide content of detection, when hydrogen sulfide content is higher than 1000ppm, to anaerobic fermentation air storing cavity (8)
Inside it is passed through the air of the 3%-5% of gas production in fermentation tank, carries out chemical reaction by following reaction equation:
H2S + 2O2 = H2SO4,
H2S + O22= 2S + 2H2O,
S + H2O + 1.5O22=H2SO4。
A kind of pre-sulfur method of anaerobic fermentation the most according to claim 2, it is characterised in that to anaerobic fermentation in step 3
The air capacity being passed through in air storing cavity (8) is not less than 10 times of detected hydrogen sulfide content.
3. the pre-desulfurizer of anaerobic fermentation, it is characterised in that including:
It is arranged on the anaerobic fermentation air storing cavity (8) of anaerobic fermentation upper end；
Air pump (1)；
Air line (5), in being communicated to anaerobic fermentation air storing cavity (8) by air pump；
The check-valves (2) being arranged on air line (5), for preventing the gas backflow in pipeline from making the return trip empty air pump；
The regulation valve (3) being arranged on air line (5), for regulating the gas flow in pipeline；
The effusion meter (4) being arranged on air line (5), for measuring the gas flow in pipeline.
A kind of pre-desulfurizer of anaerobic fermentation the most according to claim 4, it is characterised in that described anaerobic fermentation air storing cavity
(8) it is made up of the gas storage film (7) covered in anaerobic fermentation upper end, the surrounding outer of gas storage film (7) and anaerobic fermentation upper end
Surrounding outer be tightly connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610541706.8A CN105964121A (en) | 2016-07-12 | 2016-07-12 | Anaerobic fermentation pre-desulfurization method and device |
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| CN201610541706.8A CN105964121A (en) | 2016-07-12 | 2016-07-12 | Anaerobic fermentation pre-desulfurization method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899384A (en) * | 2017-11-21 | 2018-04-13 | 成都德通环境工程有限公司 | A kind of Multistage desulfuration system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201825951U (en) * | 2010-10-27 | 2011-05-11 | 泽尔曼生物能源技术（北京）有限公司 | Methane biological desulphurization device |
| CN202658152U (en) * | 2012-05-21 | 2013-01-09 | 北京时代桃源环境科技有限公司 | Multifunctional anaerobic fermentation tank integrating gas generation, gas storage and desulfuration |
| CN204779574U (en) * | 2015-06-02 | 2015-11-18 | 中国华电工程(集团)有限公司 | Take anaerobic fermentation device of marsh gas biological desulphurization function |
| CN105251338A (en) * | 2015-10-27 | 2016-01-20 | 四川和鼎环保工程有限责任公司 | Methane desulfurization technology for anaerobic reaction |
| DE102014222703A1 (en) * | 2014-11-06 | 2016-05-12 | bue Anlagentechnik GmbH | Process and device for the desulfurization of biogas by means of functional substances and hydrogen sulfide degrading microorganisms in the biogas fermenter and biogas fermenter |
| CN205760542U (en) * | 2016-07-12 | 2016-12-07 | 南京慧淳环保科技有限公司 | A kind of pre-desulfurizer of anaerobic fermentation |
-
2016
- 2016-07-12 CN CN201610541706.8A patent/CN105964121A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201825951U (en) * | 2010-10-27 | 2011-05-11 | 泽尔曼生物能源技术（北京）有限公司 | Methane biological desulphurization device |
| CN202658152U (en) * | 2012-05-21 | 2013-01-09 | 北京时代桃源环境科技有限公司 | Multifunctional anaerobic fermentation tank integrating gas generation, gas storage and desulfuration |
| DE102014222703A1 (en) * | 2014-11-06 | 2016-05-12 | bue Anlagentechnik GmbH | Process and device for the desulfurization of biogas by means of functional substances and hydrogen sulfide degrading microorganisms in the biogas fermenter and biogas fermenter |
| CN204779574U (en) * | 2015-06-02 | 2015-11-18 | 中国华电工程(集团)有限公司 | Take anaerobic fermentation device of marsh gas biological desulphurization function |
| CN105251338A (en) * | 2015-10-27 | 2016-01-20 | 四川和鼎环保工程有限责任公司 | Methane desulfurization technology for anaerobic reaction |
| CN205760542U (en) * | 2016-07-12 | 2016-12-07 | 南京慧淳环保科技有限公司 | A kind of pre-desulfurizer of anaerobic fermentation |
Non-Patent Citations (2)
| Title |
|---|
| 樊京春 等: "《中国畜禽养殖场与轻工业沼气技术指南》", 31 January 2009, 化学工业出版社 * |
| 董仁杰 等: "《沼气工程与技术：第4卷》", 31 May 2013, 中国农业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899384A (en) * | 2017-11-21 | 2018-04-13 | 成都德通环境工程有限公司 | A kind of Multistage desulfuration system and method |
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Application publication date: 20160928 |