CN102671534A - Hydrogen sulfide gas absorbing system - Google Patents
Hydrogen sulfide gas absorbing system Download PDFInfo
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- CN102671534A CN102671534A CN2011100607928A CN201110060792A CN102671534A CN 102671534 A CN102671534 A CN 102671534A CN 2011100607928 A CN2011100607928 A CN 2011100607928A CN 201110060792 A CN201110060792 A CN 201110060792A CN 102671534 A CN102671534 A CN 102671534A
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- hydrogen sulfide
- desulphurization plant
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- sulfide gas
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Abstract
The invention relates to a hydrogen sulfide gas absorbing system, which is characterized by comprising a biogas pool (21), a water removal device (22), a draught fan (25), desulfurizing equipment (29) and a gas storage tank (210), wherein the biogas pool (21) is connected with the water removal device (22), the water removal device (22) is connected with the desulfurizing equipment (29) through the draught fan (25), and an exhaust valve of the desulfurizing equipment (29) is connected with the gas storage tank (210). The same equipment is adopted so that the system meets the continuous operation; the taking out is not needed in the reduction process, and the reduction is directly carried out in a tower through a valve switch; the automatic control of the system can be implemented through pressure differences in a pressure meter, and the system is automatically switched; the aperture ratio of an air flow distribution plate of the desulfurizing equipment of the hydrogen sulfide gas absorbing system is 50 percent, and the air flow distribution is uniform; the humidification and the spraying of the desulfurizing equipment of the hydrogen sulfide gas absorbing system are uniform, and the quantity of water with temperature reduction requirements is controllable; and the control and the opening of an air inlet valve, the exhaust valve and a water inlet valve of the desulfurizing equipment of the hydrogen sulfide gas absorbing system are controllable, and the system safety is ensured.
Description
Technical field
The present invention relates to a kind of hydrogen sulfide treatment device, be specifically related to a kind of hydrogen sulfide gas absorption system.
Background technology
Hydrogen sulfide results from production processes such as the right gas of Tian Jingization ﹑ Shi oil Lian Zhi ﹐ and Zhi Mei Qi ﹑ Zhi Ge ﹑ Zhi Yao ﹑ Zao Zhi ﹑ synthetic chemistry fiber.Hydrogen sulfide is that no look gas body ﹐ has excitant to dislike smelly ﹐ to be prone to wave and to be blue flame when sending out the ﹐ burning.Hydrogen sulfide be a ﹐ of the major pollutants of atmosphere not only endanger harmful health ﹐ also can severe corrosion equipment etc. general introduction hydrogen sulfide result from that day right gas is changed ﹑ stone oil refining system ﹐ only and system coal gas ﹑ system leather ﹑ system medicine ﹑ makes production processes such as paper ﹑ synthetic chemistry fiber.Hydrogen sulfide is that no look gas body ﹐ has excitant to dislike smelly ﹐ to be prone to wave and to be blue flame when sending out the ﹐ burning.Hydrogen sulfide be a ﹐ of the major pollutants of atmosphere not only endanger harmful health ﹐ also can severe corrosion equipment etc.Sulfur method divides dry method and wet method Liang Lei : basically
Dry desulfurization wherein.This method is to utilize solid desulfurating agent that the H2S in the coal gas is removed, like Fe-series desulfurizing agent, active carbon fimily desulfurizing agent, zinc fimily desulfurizing agent etc.Dry desulfurizing process and equipment are all fairly simple, processing ease, and degree of purification is high, but device is heavy, and floor space is big, and intermittently replacing and recycling desulfurizer labour intensity are big.Be generally used for the deep desulfuration of small-sized coke-oven plant or town gas.
This method desulfuration efficiency Gao ﹐ be suitable for purifying the low Qi Ti ﹐ of hydrogen sulfide content but occupation area of equipment Da ﹐ desulfurizing agent must regular regeneration with Geng Huan ﹐ operating condition Cha ﹐ thereby be wet method Qu Dai ﹐ or gradually with the wet method combined deep desulfuration that is used for.
Summary of the invention
[0005] the present invention's technical scheme that will solve provide that a kind of desulfuration efficiency is high, floor space is little, hydrogen sulfide gas absorption system that can integrated continuous operation.
Technical scheme of the present invention is:
A kind of hydrogen sulfide gas absorption system comprises methane-generating pit, de-watering apparatus, air-introduced machine, desulphurization plant and air accumulator, and said methane-generating pit connects de-watering apparatus, and de-watering apparatus connects desulphurization plant through air-introduced machine, and the air bleeding valve of desulphurization plant connects air accumulator.
Said hydrogen sulfide gas absorption system also comprises technology water tank, first electrically operated valve, PLC control device, second electrically operated valve and atmospheric valve; De-watering apparatus connects air-introduced machine through first electrically operated valve; Desulphurization plant is provided with atmospheric valve, and desulphurization plant connects air accumulator through second electrically operated valve.
Said de-watering apparatus connects two air-introduced machines through two first electrically operated valves respectively, and each air-introduced machine decibel connects a desulphurization plant.
Said desulphurization plant comprises air blast, intake valve, screen tray support, solid absorbent, hand-hole, Humidification cooling apparatus, air bleeding valve, humidification pump and water tank; Air blast connects the desulphurization plant bottom through intake valve, and the desulphurization plant sidepiece is provided with hand-hole, and desulphurization plant inside is provided with one or more screen tray supports; Set up solid absorbent on each screen tray support; Desulphurization plant inside also is provided with Humidification cooling apparatus, and Humidification cooling apparatus connects water tank through the humidification pump, and the desulphurization plant top is provided with air bleeding valve.
Be provided with into water seal valve between said Humidification cooling apparatus and the humidification pump.
Said Humidification cooling apparatus is provided with a plurality of downward perforates.
The invention has the beneficial effects as follows:
Hydrogen sulfide gas absorption system of the present invention mainly contains following advantage:
1, hydrogen sulfide gas absorption system of the present invention adopts same equipment to make system satisfy operation continuously;
2, need not in the hydrogen sulfide gas absorption system desulfurizing agent reduction process of the present invention to take out, in tower, directly reduce through valve switch;
3, hydrogen sulfide gas absorption system of the present invention is through the automation control of the practicable system of pressure reduction in the Pressure gauge, automatic switchover system;
4, hydrogen sulfide gas absorption system design current velocity of the present invention is strong in 0.1-0.5/s adaptability.
The support of the desulphurization plant of hydrogen sulfide gas absorption system of the present invention and sieve plate adopt the piecemeal design, guarantee that installing and replacing is convenient from the hand-hole turnover.
1, the airflow-distribution board percent opening 50% of desulphurization plant of the present invention, air-flow is evenly distributed;
2, the humidification of desulphurization plant of the present invention spray evenly needs the water yield of cooling to control;
3, the blower speed of desulphurization plant of the present invention is adjustable, guarantees at utmost to reduce;
4, the intake valve of desulphurization plant of the present invention, air bleeding valve, water intaking valve control is opened all controlledly, guarantees security of system;
5, the equipment inner wall anti-corrosive of desulphurization plant of the present invention prevents the corrosion of sulphur and H2S;
6, the equipment resistance of desulphurization plant of the present invention is controlled at 1500Pa-3000Pa;
7, the efficient height of desulphurization plant of the present invention can reach more than 95%.
Description of drawings
Fig. 1 is the facade sectional structure sketch map of desulphurization plant of the present invention.
Fig. 2 be among Fig. 1 A-A to attempting.
Fig. 3 be among Fig. 1 B-B to attempting.
Fig. 4 is a hydrogen sulfide gas absorption system sketch map of the present invention.
Among the figure: 1, air blast, 2, intake valve, 3, the screen tray support, 4, solid absorbent, 5, hand-hole, 6, Humidification cooling apparatus, 7, air bleeding valve, 8, the water inlet seal valve, 9, the humidification pump, 10, water tank; 21, methane-generating pit, 22, de-watering apparatus, 23, the technology water tank, 24, first electrically operated valve, 25, air-introduced machine, 26, the PLC control device, 27, second electrically operated valve, 28, atmospheric valve, 29, desulphurization plant, 210, air accumulator.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
Like Fig. 1 to Fig. 4; A kind of hydrogen sulfide gas absorption system; Comprise methane-generating pit 21, de-watering apparatus 22, air-introduced machine 25, desulphurization plant 29 and air accumulator 210; Said methane-generating pit 21 connects de-watering apparatus 22, and de-watering apparatus 22 connects desulphurization plant 29 through air-introduced machine 25, and the air bleeding valve of desulphurization plant 29 connects air accumulator 210.
The hydrogen sulfide gas absorption system also comprises technology water tank 23, first electrically operated valve 24, PLC control device 26, second electrically operated valve 27 and atmospheric valve 28; De-watering apparatus 22 connects air-introduced machine 25 through first electrically operated valve 24; Desulphurization plant 29 is provided with atmospheric valve 28, and desulphurization plant 29 connects air accumulator 210 through second electrically operated valve 27.
De-watering apparatus 22 connects two air-introduced machines 25 through two first electrically operated valves 24 respectively, and each air-introduced machine connects a desulphurization plant 29 for 25 decibels.
Adopt the principle of iron oxide dry removal hydrogen sulfide to be:
In alkaline desulfurizing agent, following desulphurization reaction takes place in the active ingredient of the desulfurizing agent of hydrogen sulfide:
Fe2O3·H2O+3H2S→Fe2S3·H2O+3H2O；
Fe2S3→2FeS+S；
Under the condition that has enough moisture to exist, following regenerative response takes place in airborne oxygen and iron sulfide:
Fe2S3·H2O+3/2O2→Fe2O3·H2O+3S；
4FeS+3O2+2H2O→2Fe2O3·H2O?+4S。
After desulfurizing agent used with regeneration through desulfurization repeatedly, the sulphur in desulfurizing agent was built up, and encases the iron hydroxide active particles gradually, and its desulfuration efficiency is reduced.Therefore, when the quality of sulphur mark is greater than some in the desulfurizing agent, the desulfurizing agent that need more renew.
The factor that influences the iron oxide dry desulfurization has:
(1) desulfurizing agent basicity.The pH value of desulfurizing agent should remain on 8 ~ 9, therefore must add a certain amount of white lime or spray weak aqua ammonia to desulfurizing agent, otherwise desulfuration efficiency reduces.
(2) desulfurizing agent moisture.The moisture of desulfurizing agent should remain on 25% ~ 35%, so just can carry out regenerative response.It should be noted that desulfurization and regenerative response are exothermic reactions, gas temperature is raise, thereby take the moisture in the desulfurizing agent out of, regenerative response is affected.For this reason, before desulfurization, need in coal gas, add some steam.
(3) desulfurization temperature.Suitable desulfurization temperature is at 28 ~ 30 ℃, temperature cross low desulfurization and regenerative response speed slow.
Embodiment recited above describes preferred implementation of the present invention; Be not that design of the present invention and scope are limited; Do not breaking away under the design concept prerequisite of the present invention; Common engineers and technicians make technical scheme of the present invention in this area various modification and improvement all should fall into protection scope of the present invention, and the technology contents that the present invention asks for protection all is documented in claims.
Claims (6)
1. hydrogen sulfide gas absorption system; It is characterized in that comprising methane-generating pit (21), de-watering apparatus (22), air-introduced machine (25), desulphurization plant (29) and air accumulator (210); Said methane-generating pit (21) connects de-watering apparatus (22); De-watering apparatus (22) connects desulphurization plant (29) through air-introduced machine (25), and the air bleeding valve of desulphurization plant (29) connects air accumulator (210).
2. hydrogen sulfide gas absorption system according to claim 1; It is characterized in that said hydrogen sulfide gas absorption system also comprises technology water tank (23), first electrically operated valve (24), PLC control device (26), second electrically operated valve (27) and atmospheric valve (28); De-watering apparatus (22) connects air-introduced machine (25) through first electrically operated valve (24); Desulphurization plant (29) is provided with atmospheric valve (28), and desulphurization plant (29) connects air accumulator (210) through second electrically operated valve (27).
3. hydrogen sulfide gas absorption system according to claim 2; It is characterized in that said de-watering apparatus (22) connects two air-introduced machines (25) through two first electrically operated valves (24) respectively, each air-introduced machine (25) decibel connects a desulphurization plant (29).
4. hydrogen sulfide gas absorption system according to claim 1; It is characterized in that said desulphurization plant (29) comprises air blast (1), intake valve (2), screen tray support (3), solid absorbent (4), hand-hole (5), Humidification cooling apparatus (6), air bleeding valve (7), humidification pump (9) and water tank (10); Air blast (1) connects desulphurization plant (29) bottom through intake valve (2); Desulphurization plant (29) sidepiece is provided with hand-hole (5); Desulphurization plant (29) inside is provided with one or more screen tray supports (3), sets up solid absorbent (4) on each screen tray support (3), and desulphurization plant (29) inside also is provided with Humidification cooling apparatus (6); Humidification cooling apparatus (6) connects water tank (10) through humidification pump (9), and desulphurization plant (29) top is provided with air bleeding valve (7).
5. hydrogen sulfide gas absorption system according to claim 4 is characterized in that being provided with between said Humidification cooling apparatus (6) and the humidification pump (9) into water seal valve (8).
6. hydrogen sulfide gas absorption system according to claim 4 is characterized in that said Humidification cooling apparatus (6) is provided with a plurality of downward perforates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110060792.8A CN102671534B (en) | 2011-03-15 | 2011-03-15 | Hydrogen sulfide gas absorption system |
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| CN201110060792.8A CN102671534B (en) | 2011-03-15 | 2011-03-15 | Hydrogen sulfide gas absorption system |
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| CN102671534A true CN102671534A (en) | 2012-09-19 |
| CN102671534B CN102671534B (en) | 2016-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818069A (en) * | 2015-05-19 | 2015-08-05 | 农业部沼气科学研究所 | Multistage-spray biogas biological desulfurizing unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0091392A1 (en) * | 1982-02-26 | 1983-10-12 | The Goodyear Tire & Rubber Company | Sulfur removal from a gas stream |
| US4722799A (en) * | 1985-04-24 | 1988-02-02 | Ashbrook Clifford L | Natural gas desulphurizing apparatus and method |
| CN101338230A (en) * | 2008-08-28 | 2009-01-07 | 河南富城生态能源科技有限公司 | Process for preparing automobile fuel from methane |
| CN201505499U (en) * | 2008-12-31 | 2010-06-16 | 青岛天人环境股份有限公司 | All-in-one biogas purification device for a biogas engine |
| CN202015580U (en) * | 2011-03-15 | 2011-10-26 | 江苏昌明环保科技有限公司 | Hydrogen sulfide gas absorption system |
-
2011
- 2011-03-15 CN CN201110060792.8A patent/CN102671534B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0091392A1 (en) * | 1982-02-26 | 1983-10-12 | The Goodyear Tire & Rubber Company | Sulfur removal from a gas stream |
| US4722799A (en) * | 1985-04-24 | 1988-02-02 | Ashbrook Clifford L | Natural gas desulphurizing apparatus and method |
| CN101338230A (en) * | 2008-08-28 | 2009-01-07 | 河南富城生态能源科技有限公司 | Process for preparing automobile fuel from methane |
| CN201505499U (en) * | 2008-12-31 | 2010-06-16 | 青岛天人环境股份有限公司 | All-in-one biogas purification device for a biogas engine |
| CN202015580U (en) * | 2011-03-15 | 2011-10-26 | 江苏昌明环保科技有限公司 | Hydrogen sulfide gas absorption system |
Non-Patent Citations (2)
| Title |
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| 田苗等: "沼气工程的自动化应用——昌平区东新城村沼气集中供气工程PLC模式", 《中国环保产业》, no. 9, 31 December 2008 (2008-12-31), pages 28 - 29 * |
| 齐岳等: "《沼气工程系统设计与施工运行》", 31 January 2011, 人民邮电出版社, article "沼气利用技术", pages: 63-72 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818069A (en) * | 2015-05-19 | 2015-08-05 | 农业部沼气科学研究所 | Multistage-spray biogas biological desulfurizing unit |
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