CN103539076A - Claus sulfur recycling device - Google Patents
Claus sulfur recycling device Download PDFInfo
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- CN103539076A CN103539076A CN201310464780.0A CN201310464780A CN103539076A CN 103539076 A CN103539076 A CN 103539076A CN 201310464780 A CN201310464780 A CN 201310464780A CN 103539076 A CN103539076 A CN 103539076A
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Abstract
The invention provides a Claus sulfur recycling device. The Claus sulfur recycling device comprises a first-level Claus reactor, a second-level Claus reactor and a third-level Claus reactor, wherein the first-level, second-level and third-level Claus reactors and a first-level, second-level and third-level sulfur coolers which are connected with the first-level, second-level and third-level Claus reactors are respectively fixed in a cylinder body; the first-level sulfur cooler is connected with the second-level Claus reactor. By combining the reactors and a sulfur condenser together organically, the recovery rate of sulfur is effectively increased, the sulfur plugging problem in the system process is solved, the device is relatively simple to operate, the risk of sulfur deposition in pipelines is reduced, and the operation safety of the device is improved.
Description
Technical field
The present invention relates to claus plant.
Background technology
Sulfur recovery technology category is various, but substantially in Crouse's technical foundation, grows up.Typical Cross unit is comprised of a burning zone and subsequently two or three catalytic conversion stage conventionally, burning zone is comprised of the roasting kiln with combuster and waste heat boiler, at burning zone, in Crouse's unstripped gas, 1/3 hydrogen sulfide generates sulfurous gas according to chemical equation burning below, according to Crouse's balanced reaction, sulfurous gas reacts with remaining hydrogen sulfide and generates elemental sulfur:
3H2S+3/2O2→2H2S+SO2+H2O (a)
Under the typical 1200 ℃ of temperature condition in combustion chamber, the transformation efficiency of sulphur is 60～70%, reacted gas leaves combustion chamber, enter waste heat boiler and be cooled to 160 ℃ of left and right, reclaim heat generation steam, with condensation separation molten sulfur, process gas is again after heating, by utilizing catalyzer that Crouse's balanced reaction is carried out to the direction that generates sulphur in the reactor of claus catalyst having, further to improve the transformation efficiency of sulphur.Claus reaction section is comprised of process gas well heater, catalyticreactor and sulfur condenser.Sulphur is condensation separation after claus reaction device, and unreacted gas enters next catalyst reaction section to be continued reaction and generates sulphur, and its reaction process is as follows:
In the high rich sour gas of hydrogen sulfide content, the theoretic rate of recovery of Cross unit that is provided with two conversion zones is 96%, the upper sulfur recovery rate of Cross unit theory that is provided with the claus reaction section of three conversion zones is 98%, but actually, owing to being subject to the restriction of various conditions, the rate of recovery of sulphur can only reach 94～97%.And the sour gas of hydrogen sulfide content about 25%V, the sulphur rate of returning will be lower.Cause the reason that sulfur recovery rate is low, except catalyst deactivation, be mainly subject to the restriction of the following aspects factor.Thermodynamics has limited the transformation efficiency of sulphur; Moisture content increases, the corresponding concentration that has reduced hydrogen sulfide and sulfurous gas in process gas; From introducing above, it is reversible, thermopositive reaction that hydrogen sulfide and sulfurous gas catalyzed reaction generate sulphur, therefore, removes fast heat, is conducive to balanced reaction and moves towards the direction that generates sulphur.
Three grades of traditional Crouse's recovery technology of sulfur, are all that one, two, three claus reaction device is designed in a cylindrical shell, and the sulphur water cooler after every stage reactor arranges separately.
Summary of the invention
The object of the invention is to solve the problem in traditional Crouse's recovery technology of sulfur, effectively improved the rate of recovery of Crouse's recovery technology of sulfur.Reduce the process line of device operation, make device operation more simple and convenient.
, including one, two, three claus reaction device, one, two, three described claus reaction device respectively coupled one, two, three sulphur water cooler is fixed on separately in a cylindrical shell; One-level sulphur water cooler is connected with secondary claus reaction device, and secondary sulphur water cooler is connected with three grades of claus reaction devices, and three grades of sulphur water coolers are connected with exhaust gas filter, and one, two, three sulphur water cooler is together connected in burner.
Described exhaust gas filter is connected with burner.
Tradition Crouse's recovery technology of sulfur and other current dry desulfurizing process, be all to take claus reaction device to concentrate in a housing, sulfur condenser is placed on the ground of reactor below.The advantage that this method is is that same category of device concentrates in together, and has reduced occupation of land.But because reactor outlet line temperature is higher, thermal expansion force is large.And wherein containing sulphur, device easily occurs while stopping that sulphur is stifled.So, very high to the requirement of pipeline.
Technique of the present invention has effectively overcome above shortcoming, and the claus reaction device of every one-level and sulphur water cooler are concentrated in a housing, is jointly placed on two layers of framework.This method can be taken the heat that claus reaction produces in time away, is conducive to balanced reaction and moves towards the direction that generates sulphur, has improved greatly the rate of recovery of sulphur; Meanwhile, there is no the sulfur contained high temoperature pipeline of reactor outlet, reduced the difficulty of pipe arrangement.In addition, after sulphur water cooler is raised, be conducive to cooled molten sulfur and utilize flow by gravity to storage tank.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention
Embodiment
Referring to accompanying drawing, a kind of claus plant, include one, two, three claus reaction device 1,2,3, one, two, three claus reaction device 1,2,3 respectively coupled one, two, three sulphur water cooler 4,5,6 is fixed on separately in a cylindrical shell 7; One-level sulphur water cooler 4 is connected with secondary claus reaction device 2, secondary sulphur water cooler 5 is connected with three grades of claus reaction devices 3, three grades of sulphur water coolers 6 are connected with exhaust gas filter 8, and one, two, three sulphur water cooler is together connected in burner 9, and exhaust gas filter is connected with burner.
Claims (2)
1. a claus plant, includes one, two, three claus reaction device, it is characterized in that, one, two, three described claus reaction device respectively coupled one, two, three sulphur water cooler is fixed on separately in a cylindrical shell; One-level sulphur water cooler is connected with secondary claus reaction device, and secondary sulphur water cooler is connected with three grades of claus reaction devices, and three grades of sulphur water coolers are connected with exhaust gas filter, and one, two, three sulphur water cooler is together connected in burner.
2. claus plant according to claim 1, is characterized in that, described exhaust gas filter is connected with burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310464780.0A CN103539076A (en) | 2013-09-30 | 2013-09-30 | Claus sulfur recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310464780.0A CN103539076A (en) | 2013-09-30 | 2013-09-30 | Claus sulfur recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103539076A true CN103539076A (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310464780.0A Pending CN103539076A (en) | 2013-09-30 | 2013-09-30 | Claus sulfur recycling device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3764665A (en) * | 1971-02-19 | 1973-10-09 | Shell Oil Co | Combined sulfur oxides acceptance-sulfur recovery process |
| CN1849262A (en) * | 2003-07-14 | 2006-10-18 | 英国氧气集团有限公司 | Process for recovering sulphur from a gas stream containing hydrogen sulphide |
| CN102556977A (en) * | 2010-12-30 | 2012-07-11 | 中国石油天然气股份有限公司 | Inner cooling type direct oxidation recycling method and recycling device of sulfur |
| CN202754802U (en) * | 2012-07-23 | 2013-02-27 | 重庆万盛煤化有限责任公司 | Sulphur coal claus sulfur recovery system |
| CN202953829U (en) * | 2012-12-11 | 2013-05-29 | 内蒙古大唐国际克什克腾煤制天然气有限责任公司 | Acid gas desulfurizing device |
| CN103318847A (en) * | 2013-07-08 | 2013-09-25 | 中石化南京工程有限公司 | High-efficiency sulfur recovery method of waste gas containing hydrogen sulfide |
-
2013
- 2013-09-30 CN CN201310464780.0A patent/CN103539076A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3764665A (en) * | 1971-02-19 | 1973-10-09 | Shell Oil Co | Combined sulfur oxides acceptance-sulfur recovery process |
| CN1849262A (en) * | 2003-07-14 | 2006-10-18 | 英国氧气集团有限公司 | Process for recovering sulphur from a gas stream containing hydrogen sulphide |
| CN102556977A (en) * | 2010-12-30 | 2012-07-11 | 中国石油天然气股份有限公司 | Inner cooling type direct oxidation recycling method and recycling device of sulfur |
| CN202754802U (en) * | 2012-07-23 | 2013-02-27 | 重庆万盛煤化有限责任公司 | Sulphur coal claus sulfur recovery system |
| CN202953829U (en) * | 2012-12-11 | 2013-05-29 | 内蒙古大唐国际克什克腾煤制天然气有限责任公司 | Acid gas desulfurizing device |
| CN103318847A (en) * | 2013-07-08 | 2013-09-25 | 中石化南京工程有限公司 | High-efficiency sulfur recovery method of waste gas containing hydrogen sulfide |
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Application publication date: 20140129 |