CN102671534B - Hydrogen sulfide gas absorption system - Google Patents
Hydrogen sulfide gas absorption system Download PDFInfo
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- CN102671534B CN102671534B CN201110060792.8A CN201110060792A CN102671534B CN 102671534 B CN102671534 B CN 102671534B CN 201110060792 A CN201110060792 A CN 201110060792A CN 102671534 B CN102671534 B CN 102671534B
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Abstract
A kind of 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), described methane-generating pit (21) connects de-watering apparatus (22), de-watering apparatus (22) connects desulphurization plant (29) by air-introduced machine (25), and the air bleeding valve of desulphurization plant (29) connects air accumulator (210). The present invention adopts same equipment to make system meet operation continuously; In reduction process of the present invention, without taking-up, directly reduce in tower by valve switch; The present invention is by the automation control of the practicable system of pressure reduction in Pressure gauge, automatic switchover system; The airflow-distribution board percent opening 50% of desulphurization plant of the present invention, air-flow is evenly distributed; The humidification uniform spraying of desulphurization plant of the present invention, needs the water yield of cooling to control; The intake valve of desulphurization plant of the present invention, air bleeding valve, water intaking valve control, opens all controlledly, guarantees security of system.
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 the right gas of Tian Jingization ﹑ Shi oil Lian ﹐ processed and Mei Qi ﹑ processed Ge ﹑ processed Yao ﹑ processed Zao Zhi ﹑ synthetic chemistry fibreThe production processes such as dimension. Hydrogen sulfide is in the time that the irritant E Chou of look Qi Ti ﹐ ﹐ Yi Hui Fa ﹐ burns, to be blue flame. Hydrogen sulfide is largeOne ﹐ of the major pollutants of gas not only endanger harmful health ﹐ also can severe corrosion equipment etc. general introduction hydrogen sulfide result from natural gasThe production processes such as Jingization ﹑ Shi oil Lian ﹐ processed and Mei Qi ﹑ processed Ge ﹑ processed Yao ﹑ processed Zao Zhi ﹑ synthetic chemistry fiber. Hydrogen sulfide is colourless gasWhen the irritant E Chou of Ti ﹐ ﹐ Yi Hui Fa ﹐ burning, be blue flame. Hydrogen sulfide is that the major pollutants Zhi mono-﹐ of atmosphere not only endangersRen body Jian Kang ﹐ also can severe corrosion equipment etc. Sulfur method divides dry method and wet method Liang Lei ﹕ substantially
Wherein dry desulfurization. This method is to utilize solid desulfurating agent that the H2S in coal gas is removed, as Fe-series desulfurizing agent, activityCharcoal 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 dressPut heaviness, floor space is large, and intermittently replacing and recycling desulfurizer labour intensity are large. Be generally used for small-sized coke-oven plant or town gasDeep desulfuration.
This method desulfuration efficiency Gao ﹐ is suitable for purifying the Qi Ti ﹐ that hydrogen sulfide content is low but occupation area of equipment great ﹐ desulfurizing agent is necessaryRegular regeneration and more change the poor ﹐ of ﹐ operating condition because of gradually for wet method get for ﹐ or with wet method combined for deep desulfuration.
Summary of the invention
The technical scheme that the present invention will solve is to provide that a kind of desulfuration efficiency is high, floor space is little, can integrated continuous fortuneThe hydrogen sulfide gas absorption system of row.
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, instituteState methane-generating pit and connect de-watering apparatus, de-watering apparatus connects desulphurization plant by air-introduced machine, and the air bleeding valve of desulphurization plant connects gas storageTank.
Described hydrogen sulfide gas absorption system also comprises technique water tank, the first electrically operated valve, PLC control device, the second electricityMovable valve and atmospheric valve, de-watering apparatus connects air-introduced machine by the first electrically operated valve, and desulphurization plant is provided with atmospheric valve, and desulfurization is establishedStandby by the second electrically operated valve connection air accumulator.
Described de-watering apparatus connects two air-introduced machines by two the first electrically operated valves respectively, and each air-introduced machine decibel connectsA desulphurization plant.
Described desulphurization plant comprises air blast, intake valve, screen tray support, solid absorbent, hand-hole, Humidification cooling apparatus, rowAir valve, humidification pump and water tank, air blast connects desulphurization plant bottom by intake valve, and desulphurization plant sidepiece is provided with hand-hole, desulfurizationDevice interior is provided with one or more screen tray supports, on each screen tray support, sets up solid absorbent, and also establish desulphurization plant insideHave Humidification cooling apparatus, Humidification cooling apparatus connects water tank by humidification pump, and desulphurization plant top is provided with air bleeding valve.
Between described Humidification cooling apparatus and humidification pump, be provided with into water seal valve.
Described Humidification cooling apparatus is provided with multiple 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 meet operation continuously;
2, in hydrogen sulfide gas absorption system desulfurizing agent reduction process of the present invention without taking-up, by valve switch at towerInside directly reduce;
3, hydrogen sulfide gas absorption system of the present invention passes through the automation control of the practicable system of pressure reduction in Pressure gauge,Automatic switchover system;
4, hydrogen sulfide gas absorption system design current velocity of the present invention is at 0.1-0.5/s strong adaptability.
The support of the desulphurization plant of hydrogen sulfide gas absorption system of the present invention and sieve plate adopt piecemeal design, guarantee from enteringHole turnover, installs and changes conveniently.
1, the airflow-distribution board percent opening 50% of desulphurization plant of the present invention, air-flow is evenly distributed;
2, the humidification uniform spraying of desulphurization plant of the present invention, 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, opens all controlledly, guarantees security of system;
5, the equipment inner wall of desulphurization plant of the present invention is anticorrosion, 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 efficiency of desulphurization plant of the present invention is high can reach more than 95%.
Brief description of the drawings
Fig. 1 is the facade sectional structure schematic diagram of desulphurization plant of the present invention.
Fig. 2 be in Fig. 1 A-A to attempting.
Fig. 3 be in Fig. 1 B-B to attempting.
Fig. 4 is hydrogen sulfide gas absorption system schematic diagram of the present invention.
In figure: 1, air blast, 2, intake valve, 3, screen tray support, 4, solid absorbent, 5, hand-hole, 6, Humidification cooling apparatus,7, air bleeding valve, 8, water inlet seal valve, 9, humidification pump, 10, water tank; 21, methane-generating pit, 22, de-watering apparatus, 23, technique water tank, 24,The first electrically operated valve, 25, air-introduced machine, 26, PLC control device, 27, the second electrically operated valve, 28, atmospheric valve, 29, desulphurization plant,210, air accumulator.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1 to Figure 4, a kind of hydrogen sulfide gas absorption system, comprises methane-generating pit 21, de-watering apparatus 22, air-introduced machine 25, de-Sulphur equipment 29 and air accumulator 210, described methane-generating pit 21 connects de-watering apparatus 22, and de-watering apparatus 22 connects desulfurization by air-introduced machine 25Equipment 29, the air bleeding valve of desulphurization plant 29 connects air accumulator 210.
Hydrogen sulfide gas absorption system also comprises technique water tank 23, the first electrically operated valve 24, PLC control device 26, secondElectrically operated valve 27 and atmospheric valve 28, de-watering apparatus 22 connects air-introduced machine 25 by the first electrically operated valve 24, on desulphurization plant 29, establishesHave atmospheric valve 28, desulphurization plant 29 connects air accumulator 210 by the second electrically operated valve 27.
De-watering apparatus 22 connects two air-introduced machines 25 by two the first electrically operated valves 24 respectively, 25 decibels of each air-introduced machinesConnect a desulphurization plant 29.
Desulphurization plant 29 comprises air blast 1, intake valve 2, screen tray support 3, solid absorbent 4, hand-hole 5, Humidification cooling apparatus6, air bleeding valve 7, humidification pump 9 and water tank 10, air blast 1 connects desulphurization plant 29 bottoms by intake valve 2, desulphurization plant 29 sidepiecesBe provided with hand-hole 5, desulphurization plant 29 inside are provided with one or more screen tray supports 3, on each screen tray support 3, set up solid absorbent4, desulphurization plant 29 inside are also provided with Humidification cooling apparatus 6, and Humidification cooling apparatus 6 connects water tank 10 by humidification pump 9, desulphurization plant 29Top is provided with air bleeding valve 7. Between Humidification cooling apparatus 6 and humidification pump 9, be provided with into water seal valve 8. Humidification cooling apparatus 6 is provided with multipleDownward perforate.
Adopt the principle of iron oxide Removing Hydrogen Sulfide by Dry Process to be:
In alkaline desulfurizing agent, there is following desulphurization reaction 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, there is following regenerative response in airborne oxygen and iron sulfide:
Fe2S3·H2O+3/2O2→Fe2O3·H2O+3S；
4FeS+3O2+2H2O→2Fe2O3·H2O+4S。
Desulfurizing agent is after desulfurization and regeneration use repeatedly, and the sulphur in desulfurizing agent is built up, and encases gradually hydrogen-oxygenChange iron active particles, its desulfuration efficiency is reduced. Therefore,, in the time that in desulfurizing agent, sulphur mass fraction is greater than some, need moreThe desulfurizing agent renewing.
Affect iron oxide dry desulfurization because have:
(1) desulfurizing agent basicity. The pH value of desulfurizing agent should remain on 8 ~ 9, therefore must add to desulfurizing agent a certain amount of ripeLime or sprinkling weak aqua ammonia, 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. Should noteWhat anticipate is that desulfurization and regenerative response are exothermic reactions, gas temperature is raise, thereby take the moisture in desulfurizing agent out of, makes regeneration anti-Should be affected. For this reason, before desulfurization, need to add some steam in coal gas.
(3) desulfurization temperature. Suitable desulfurization temperature is at 28 ~ 30 DEG C, and the too low desulfurization of temperature and regenerative response speed are slow.
Embodiment recited above is described the preferred embodiment of the present invention, not to structure of the present inventionThink of and scope limit, and are not departing under design concept prerequisite of the present invention, and in this area, common engineers and technicians are to thisVarious modification and improvement that bright technical scheme is made, all should fall into protection scope of the present invention, the skill of request protection of the present inventionArt content has all been documented in claims.
Claims (1)
1. a 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), described methane-generating pit (21) connects de-watering apparatus (22), and de-watering apparatus (22) passes through air inducingMachine (25) connects desulphurization plant (29), and the air bleeding valve of desulphurization plant (29) connects air accumulator (210); Described hydrogen sulfide gas absorbsSystem also comprises technique water tank (23), the first electrically operated valve (24), PLC control device (26), the second electrically operated valve (27) and putsEmpty valve (28), de-watering apparatus (22) connects air-introduced machine (25) by the first electrically operated valve (24), and desulphurization plant (29) is provided with to be putEmpty valve (28), desulphurization plant (29) connects air accumulator (210) by the second electrically operated valve (27); Described de-watering apparatus (22) respectivelyConnect two air-introduced machines (25) by two the first electrically operated valves (24), each air-introduced machine (25) connects respectively a desulphurization plant(29); Described 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 de-by intake valve (2)Sulphur equipment (29) bottom, desulphurization plant (29) sidepiece is provided with hand-hole (5), and desulphurization plant (29) inside is provided with one or more screen traiesSupport (3), sets up solid absorbent (4) on each screen tray support (3), desulphurization plant (29) inside is also provided with Humidification cooling apparatus(6), Humidification cooling apparatus (6) connects water tank (10) by humidification pump (9), and desulphurization plant (29) top is provided with air bleeding valve (7); DescribedBetween Humidification cooling apparatus (6) and humidification pump (9), be provided with into water seal valve (8); Described Humidification cooling apparatus (6) is provided with multiple downwardPerforate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 CN102671534A (en) | 2012-09-19 |
| CN102671534B true CN102671534B (en) | 2016-05-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104818069B (en) * | 2015-05-19 | 2017-01-18 | 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 (1)
| Title |
|---|
| 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;田苗等;《中国环保产业》;20081231(第9期);28-29 * |
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