CN103071378B - Two-stage biological desulfuration device of marsh gas - Google Patents
Two-stage biological desulfuration device of marsh gas Download PDFInfo
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- CN103071378B CN103071378B CN201310012017.4A CN201310012017A CN103071378B CN 103071378 B CN103071378 B CN 103071378B CN 201310012017 A CN201310012017 A CN 201310012017A CN 103071378 B CN103071378 B CN 103071378B
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- absorption tower
- liquid
- packing layer
- desulfurization device
- clear liquid
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 238000010521 absorption reaction Methods 0.000 claims abstract description 44
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 33
- 230000003647 oxidation Effects 0.000 claims abstract description 32
- 238000012856 packing Methods 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 21
- 239000001301 oxygen Substances 0.000 claims abstract description 21
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 5
- 238000005276 aerator Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 14
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 11
- 230000023556 desulfurization Effects 0.000 abstract description 6
- 241000894006 Bacteria Species 0.000 abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 abstract description 5
- 239000011593 sulfur Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 239000006228 supernatant Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 230000003009 desulfurizing effect Effects 0.000 description 11
- 239000000126 substance Substances 0.000 description 6
- 235000001508 sulfur Nutrition 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001502 supplementing effect Effects 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
- 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
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a biological desulfuration device for removing hydrogen sulfide in marsh gas. The biological desulfuration device comprises an absorption tower for removing hydrogen sulfide and a device composed of an oxidation tank, a settling tank, a clear liquid tank and a circulating pump. Marsh gas enters the absorption tower from a gas inlet, the alkalescent absorption liquid is uniformly sprayed on a packing layer through spray headers of a water distributor, the marsh gas is in countercurrent contact with the absorption liquid when passing through the packing layer upwards, and the hydrogen sulfide in the marsh gas is dissolved in the alkalescent absorption liquid and reacts with the alkalescent absorption liquid; the absorption liquid flows into the oxidation tank from a liquid outlet at the lower part of the absorption tower, and aerates the liquid in the oxidation tank through an air pump, the content of dissolved oxygen of the absorption liquid is controlled at the same time, and the sulfide in the absorption liquid generates elemental sulfur under the oxidation of colorless sulfur bacteria; the liquid in the oxidation tank overflows and enters the settling tank, most elemental sulfur is settled to the bottom of the settling tank and discharged and recovered; and supernatant liquor overflows and enters the clear liquid tank, and is pumped into the absorption tower as a desulfurization agent for reuse through the circulating pump. The device has the advantages of simple structure, convenience for operation, safety in operation, high desulfuration efficiency and the like.
Description
Technical field
The present invention relates to a kind of device removing hydrogen sulfide in methane, more particularly, the present invention relates to a kind of efficient, stable two-part methane bio-desulfurization device.
Background technology
The biogas that various organic matter is produced by anaerobic fermentation except main component has methane and carbon dioxide, some sulfur-containing compound (wherein H2S content is 0.1%-2%).Although the ratio of H2S in biogas composition is little, owing to generating SO2 after the H2S burning in biogas, it can be combined generation sulfurous acid by the steam in combustion product, makes combustion apparatus part-metallic surface produce corrosion; Also have a large amount of water vapour to exist in addition in biogas, the H2S acting in conjunction in water and biogas, accelerates the Corrosion blockage of metallic conduit, valve and flowmeter.When utilizing marsh gas power generation and as biological flue gas, the sulfur-containing compounds such as H2S, SO2 in biogas can heavy corrosion diesel engine parts and automotive engine component.
At present, domestic biogas desulfurization technology mainly contains chemical method and bioanalysis, and chemical desulfurization method includes the several methods such as Alkali absorption, chemisorbed, chemical oxidation and high-temperature thermal oxidation.Chemical method mainly utilizes desulfurizing agent to contact with the sulfide in biogas chemical reaction occurs, need to use a large amount of chemical agents in the process of desulfurization, therefore there is the shortcomings such as operating cost is high, investment is large, easy generation secondary pollution, biological desulfurization refers under suitable temperature, humidity, nutrients and Oxygen Condition, is the process of elemental sulfur by the metabolism of desulfurizing bacteria sulphidic conversion.This method have pollution less, low energy consumption, the feature such as high efficiency.At present, the subject matter that many bio-desulfurization devices exists has packing layer in desulfurizing tower easily to be blocked by elemental sulfur, and desulfurized effect is not high, and sulfur bacteria growth conditions is unstable, particularly the pH of absorbing liquid and the factor such as dissolved oxygen content is restive.
The patent No. is 200720106728.8, name is called that the Chinese patent literature of " methane bio-desulfurization device " discloses a kind of bio-desulfurization device, this device is a desulfurizing tower with air inlet and gas outlet, place mesh-like filler in desulfurizing tower, the top of filler is provided with nozzle, and nozzle is communicated with the carrier pipe of band reflux pump, another mouth of pipe of carrier pipe is positioned at the nutrient solution section of desulfurizing tower bottom, have temperature raising and maintaining layer outside desulfurizing tower, tower body is provided with air intlet, and there is oxygen measuring probe tower indoor.This device is a kind of biological desulphurization integration apparatus, although make and simple to operate, desulfurized effect is better, but there are the following problems: 1, the air of this device and biogas enter in desulfurizing tower from same mouth, biogas and air mix exists great potential safety hazard, the entering of large quantity of air can increase the content of biogas CO2 after desulfurization, affects the use of biogas.Although 2, this device has installed oxygen measuring probe, can measure and control the oxygen content in gas, but cannot the accurate dissolved oxygen content of solution in packing layer in control tower, and excessive dissolved oxygen can make some elemental sulfurs be oxidized to SO42-, cause the accumulation of SO42-, affect desulfurized effect.3, the bio-desulfurization device of integration is in sweetening process, and the elemental sulfur of generation can block packing layer gradually, increases the pressure drop of biogas in desulfurizing tower, affects the clearance of sulfide simultaneously.
Summary of the invention
Main purpose of the present invention is to overcome deficiency of the prior art, and provide a kind of investment less, simple to operate, safe and reliable, energy is efficient, the methane bio-desulfurization device of steady removal sulfide.
For realizing above object, this invention takes following technical scheme: a kind of two-part methane bio-desulfurization device, comprise the absorption tower that is removed hydrogen sulfide, oxidation trough, stillpot, clear liquid groove, be connected by pipeline with bottom oxidation trough bottom absorption tower; Top, absorption tower is connected by circulating pump and pipeline with clear liquid trench bottom; Be provided with packing layer in absorption tower, be provided with biogas air inlet, sewage draining exit, discharge port and liquid outlet in the bottom of packing layer, top is provided with charging aperture, inlet and gas outlet; Also water-locator is provided with above inside, absorption tower, packing layer; In described oxidation trough, install fiberfill, fiberfill bottom is provided with aerator, and aerator is connected with the air pump of outside by pipeline, also installs the online dissolved oxygen meter controlling the air pump duration of runs in oxidation trough; Stillpot Inner has guide shell and discharge pipeline;
Be provided with in described clear liquid groove to control the online pH meter of the start-stop of dosing pump.The start/stop time of air pump controls aerator by online dissolved oxygen meter, and online PH meter controls the chemical feeding quantity of dosing pump; The elemental sulfur of precipitation is discharged by the Valve controlling on discharge pipeline.
In above-mentioned oxidation trough, utilize the duration of runs of the setup control air pump of online dissolved oxygen meter, the dissolved oxygen of absorbing liquid can be controlled, in certain scope, to avoid the generation of sulfate in oxidation trough; Utilize the start-stop of the setup control dosing pump of online pH meter, the acid-base value of absorbing liquid can be controlled exactly in certain scope, increase the Vapor recovery unit of absorption tower medium sulphide content.
Between packing layer and biogas gas outlet, also demister is provided with in described absorption tower.The water smoke in the rear biogas of purification can be removed.
Described water-locator is provided with spray head, and water-locator is connected with circulating pump by pipeline.
Between described clear liquid groove and circulating pump, spinner flowmeter is installed.Be convenient to the flow controlling to enter absorbing liquid in absorption tower.
In described clear liquid groove, automatic heater is installed.Be convenient to the temperature controlling absorbing liquid, keep the stability that sulfide absorbs.
In the middle part of described absorption tower, silica window is installed.
On described absorption tower built with cascade ring or Pall ring filler.
Compared with prior art, tool has the following advantages in the present invention:
(1), biogas by the packing layer on absorption tower time, sulfide can be absorbed by the absorbing liquid in tower, by carrying out oxidation reaction in pipeline self to oxidation trough, solves the problem that elemental sulfur blocks packing layer.
(2), utilize online dissolved oxygen meter to control the duration of runs of air pump, the dissolved oxygen of absorbing liquid is controlled within the specific limits, avoids the generation of sulfate in oxidation trough.
(3), utilize online pH meter to control the start-stop of dosing pump, the acid-base value accurately controlling absorbing liquid within the specific limits, guarantees that the sulfide in biogas is completely absorbed.
(4) sulfide, in biogas first absorbs in absorption tower, then oxidized in oxidation trough, avoids excessive oxygen to mix with biogas the unsafe factor contacting and produce.
Accompanying drawing explanation
Fig. 1 is bio-desulfurization device structure chart of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, content of the present invention is described in further details.
Embodiment:
As shown in Figure 1, in the present embodiment, device comprises the absorption tower 1, water-locator 5, oxidation trough 2, stillpot 3, clear liquid groove 4, air pump 9, dosing pump 13, automatic heater 14 etc. that is removed hydrogen sulfide; Be connected by pipeline bottom absorption tower 1 with bottom oxidation trough 2; Top, absorption tower 1 is connected by circulating pump 16 and pipeline with bottom clear liquid groove 4; Be provided with packing layer 6 in absorption tower 1, the bottom of packing layer 6 is provided with biogas air inlet, liquid outlet and sewage draining exit, is provided with gas outlet and water-locator 5 above packing layer 6.Between packing layer 6 and biogas gas outlet, demister 7 is also provided with in absorption tower 1.
Above-mentioned oxidation trough 2, stillpot 3 and clear liquid groove 4 integrally structure, oxidation trough 2 is provided with fiberfill 10, and aerator 11 is arranged at the bottom of stuffing frame, and aerator 11 is connected with the air pump 9 of outside by plastic tube.
Stillpot 3 top is provided with guide shell 12, and the top of guide shell 12 has feed tube to be connected with the effluent weir on oxidation trough 2 top.Be provided with storage bucket bottom stillpot 3, there is discharge pipeline at middle part, and pipe is provided with valve, can staff by-pass valve control unlatching storage bucket in mud drain tank outside.
Be provided with drain pipe bottom clear liquid groove 4, the drain pipe outside groove is connected with circulating pump 16, has chemical feed pipe to be connected with medicine tin 15 with the dosing pump of outside in groove; Online pH meter 18 in clear liquid groove 4 is connected with the instrument display of outside by data wire; The number range that the start-stop of dosing pump is set by instrument display controls.
Also install the online dissolved oxygen meter 17 controlling the air pump duration of runs in oxidation trough 2, popping one's head in is connected with the instrument display of outside by data wire; The number range that the start-stop of air pump is set by instrument display controls, and is convenient to control the oxidized required dissolved oxygen content of sulfide.
Also be provided with automatic heater 14 in clear liquid groove 4, can liquid in Automatic-heating groove to the scope of setting, the temperature needed for biological desulphurization process is provided.
Be provided with glass rotameter 19 between clear liquid groove 4 and circulating pump 16, therefore can control the circular flow of absorbing liquid.For ensureing that absorbing liquid is evenly sprayed on packing layer, in absorption tower 1, be provided with the spray head 8 be connected with return duct.
Be provided with silica window in the middle part of absorption tower 1, be convenient to understand the ruuning situation in tower.
On absorption tower 1 built with cascade ring or Pall ring filler.
In the present embodiment, the running of device is as follows:
During startup, biogas enters into absorption tower 1 from air inlet, weakly alkaline absorbing liquid is evenly sprayed at packing layer 6 by the spray head 13 of water-locator 5, biogas upwards by during packing layer with absorbing liquid counter current contacting, hydrogen sulfide is wherein dissolved in weakly alkaline absorbing liquid and also reacts with it.Absorbing liquid flows into oxidation trough 2 from the bottom liquid outlet on absorption tower, and by air pump 9 to the liquid aeration in oxidation trough 2, control absorbing liquid dissolved oxygen content, the sulfide in absorbing liquid generates elemental sulfur under the oxidation of colorless sulfur bacteria simultaneously.The liquid flooding of oxidation trough 2 enters stillpot 3, and most elemental sulfur is discharged recovery after being deposited to bottom land.Supernatant overflow enters into clear liquid groove 4, squeezes into absorption tower reuse as desulfurizing agent by circulating pump 16.
In sweetening process, the liquid dissolves oxygen content in oxidation trough 2 is controlled by the start/stop time of air pump.Said process to be connected with air pump by the online dissolved oxygen meter probe 17 of apparatus of the present invention to realize.
In clear liquid groove 4, the pH of absorbing liquid regulates and realizes with supplementing to be popped one's head in work together with 18 by the dosing pump 13 be connected and online pH.
In the whole service process of this contrive equipment, utilize the temperature that automatic heater 14 controls in sweetening process needed for absorbing liquid.
In the running of this contrive equipment, the filler in absorption tower can add from charging aperture, and periodic replacement can be taken out by discharge port.
Need at set intervals to add nutriment to oxidation trough 2, to maintain the growth of desulfurizing bacteria.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (7)
1. a two-part methane bio-desulfurization device, is characterized in that: comprise the absorption tower (1) that is removed hydrogen sulfide, oxidation trough (2), stillpot (3), clear liquid groove (4), and absorption tower (1) bottom is connected by pipeline with oxidation trough (2) bottom; Absorption tower (1) top is connected by circulating pump (16) and pipeline with clear liquid groove (4) bottom; Be provided with packing layer (6) in absorption tower (1), be provided with biogas air inlet, sewage draining exit, discharge port and liquid outlet in the bottom of packing layer (6), top is provided with charging aperture, inlet and gas outlet; Absorption tower (1) is inner, packing layer (6) top is also provided with water-locator (5); In described oxidation trough (2), fiberfill (10) is installed, fiberfill (10) bottom is provided with aerator (11), aerator (11) is connected with the air pump (9) of outside by pipeline, also installs the online dissolved oxygen meter (17) controlling the air pump duration of runs in oxidation trough (2); Stillpot (3) Inner has guide shell (12) and discharge pipeline; Be provided with in described clear liquid groove (4) to control the online pH meter (18) of the start-stop of dosing pump.
2. two-part methane bio-desulfurization device according to claim 1, is characterized in that: be positioned in described absorption tower (1) between packing layer (6) and biogas gas outlet and be also provided with demister (7).
3. two-part methane bio-desulfurization device according to claim 1, is characterized in that: on described water-locator (5), be provided with spray head (8), and water-locator (5) is connected with circulating pump (16) by pipeline.
4. two-part methane bio-desulfurization device according to claim 1, is characterized in that: between described clear liquid groove (4) and circulating pump (16), install spinner flowmeter (19).
5. two-part methane bio-desulfurization device according to claim 1, is characterized in that: in described clear liquid groove (4), install automatic heater (14).
6. two-part methane bio-desulfurization device according to claim 4, is characterized in that: install silica window at described absorption tower (1) middle part.
7. two-part methane bio-desulfurization device according to claim 1 and 2, is characterized in that: in described absorption tower (1) built with cascade ring or Pall ring filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310012017.4A CN103071378B (en) | 2013-01-11 | 2013-01-11 | Two-stage biological desulfuration device of marsh gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310012017.4A CN103071378B (en) | 2013-01-11 | 2013-01-11 | Two-stage biological desulfuration device of marsh gas |
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| CN103071378A CN103071378A (en) | 2013-05-01 |
| CN103071378B true CN103071378B (en) | 2015-07-01 |
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| CN103752148A (en) * | 2014-01-29 | 2014-04-30 | 北京润夏环境技术有限公司 | Desulfurization system for removing sulfides based on thiobacillusthioparus |
| CN103933855B (en) * | 2014-04-26 | 2016-09-14 | 南京宇行环保科技有限公司 | SO in bioanalysis removing flue gas2and NOxdouble-column in series device and method |
| CN106467764A (en) * | 2015-08-20 | 2017-03-01 | 樊军 | A kind of methane bio-desulfurization system |
| CN106381183A (en) * | 2016-11-30 | 2017-02-08 | 唐山绿源环保科技有限公司 | Biological desulfurization device and desulfurization process for biogas |
| CN107557089A (en) * | 2017-10-11 | 2018-01-09 | 南京元凯生物能源环保工程有限公司 | A kind of biological desulfurization process for biogas |
| CN108097021A (en) * | 2017-12-25 | 2018-06-01 | 宜宾丝丽雅股份有限公司 | TRS purification process |
| CN108192678A (en) * | 2018-01-24 | 2018-06-22 | 青岛利德恒业机械有限公司 | A kind of biological desulfurization process for biogas |
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| CN110643403A (en) * | 2018-06-27 | 2020-01-03 | 郑州大学 | Chemical absorption combined biological removal hydrogen sulfide and sulfur resource technology in methane |
| CN109126410A (en) * | 2018-11-02 | 2019-01-04 | 山西资环科技股份有限公司 | A kind of biological desulfurization process for biogas |
| CN111318153A (en) * | 2020-03-09 | 2020-06-23 | 众升清源（天津）环保科技有限公司 | Full-automatic wet oxidation hydrogen sulfide removal control system and use method |
| CN112495162A (en) * | 2020-12-22 | 2021-03-16 | 雅邦绿色过程与新材料研究院南京有限公司 | Biological desulfurization integrated system and method for hydrogen sulfide-containing gas |
| TWI799026B (en) * | 2021-02-03 | 2023-04-11 | 財團法人工業技術研究院 | Biological desulfurization processing method and biological desulfurization processing system |
| CN116904240B (en) * | 2023-09-13 | 2023-11-28 | 山西德远净能环境科技股份有限公司 | Separation equipment for efficiently removing hydrogen sulfide |
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