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System device and application for desorbing hydrogen sulfide in gas phase

A system device, hydrogen sulfide technology, applied in combustible gas purification, sulfur preparation/purification, combustible gas purification/transformation, etc. Process mass transfer efficiency and small footprint

Inactive Publication Date: 2018-06-29
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention proposes a hydrogen sulfide removal device with high desulfurization efficiency, small footprint, integrated and continuous operation of desulfurization liquid regeneration, adopts two-stage rotating packed bed, and simultaneously absorbs and regenerates on the same supergravity machine Carry out, reduce industrial energy consumption, and existing supergravity oxidative desulfurization-regenerating device has the problem that sulfur clogs supergravity device filler, the rotor that the present invention adopts regenerating device adopts stator-rotor structure, has solved supergravity to a great extent The problem of packing plugging sulfur

Method used

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  • System device and application for desorbing hydrogen sulfide in gas phase
  • System device and application for desorbing hydrogen sulfide in gas phase

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Embodiment 1

[0045] Such as figure 1 As shown, the present invention proposes a system device for removing hydrogen sulfide in the gas phase, comprising a feed gas inlet 1, a first valve 2, a first blower 3, a separator 4, a two-stage rotating packed bed absorption-regeneration device 5, Demister 6, first-stage exhaust gas discharge port 7, fresh absorbent addition port 8, lean liquid tank 9, first centrifugal pump 10, flow meter 11, rich liquid tank 12, second centrifugal pump 13, air inlet 14, The second blower 15, the second-stage tail gas discharge port 16, the sedimentation separation system 17, the third centrifugal pump 18, the second valve 19, the third valve 20, the fourth centrifugal pump 21, the sulfur recovery system 22, the third blower 23, The fourth valve 24 .

[0046] The two-stage rotating packed bed absorption-regeneration device 5 is installed vertically, including a base 501, a motor 502, a coupling 503, a two-stage rotating packed bed, a first-stage gas inlet 506, a f...

Embodiment 2

[0064] Use the device and technology of embodiment 1 to carry out oilfield associated gas removal hydrogen sulfide:

[0065] Capacity: 20000Nm 3 , the pressure is 12MPa, the hydrogen sulfide content is 200ppm, the gas temperature is 60°C, the complex iron in the lean liquid tank is used as the absorbing liquid, and the amount of absorbing liquid is 150m 3 / h. Using this process, the hydrogen sulfide content of the associated gas at the outlet is 2ppm, and it will run for one year during the regeneration process to clean up the stator-rotor blockage.

Embodiment 3

[0067] Use the device and technique of embodiment 1 to carry out the removal of hydrogen sulfide from natural gas:

[0068] Capacity: 60000Nm 3 , the pressure is 1MPa, the hydrogen sulfide content is 6000ppm, the gas temperature is 6℃, complex iron is selected as the absorption liquid in the lean liquid tank, and the absorption liquid consumption is 100m 3 / h. Using this process, the hydrogen sulfide content of the associated gas at the outlet is 3ppm, and it will run for 1 year during the regeneration process to clean up the stator-rotor blockage.

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Abstract

The invention discloses a system device for desorbing hydrogen sulfide in a gas phase. The system device comprises a raw material gas inlet, an air inlet, a separator, a double-grade rotation fillingbed absorption-regeneration device, a demister, a barren liquor tank, a rich liquor tank, a settlement separation system and a sulfur recycling system, wherein the raw material gas inlet is connectedwith gas inlet of the separator; the gas outlet of the separator, the demister, the barren liquor tank, the rich liquor tank, the air inlet, a tail gas discharge hole and the settlement separation system are respectively connected with the double-grade rotation filling bed absorption-regeneration device; the upper-layer liquid outlet of the settlement separation system is connected with the liquidinlet of the barren liquor tank; a bypass is arranged between the settlement separation system and the barren liquor tank; the bypass is connected with the liquid inlet of the rich liquor tank through a pipeline; and the lower-layer liquid outlet of the settlement separation system is connected with the sulfur recycling system. As conventional absorption equipment and regeneration equipment are combined into one piece of equipment, industrial energy consumption and industrial floor spaces can be reduced, and due to adoption of stator-rotor devices, the process transfer efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of gas purification. More specifically, it relates to a system device and application for removing hydrogen sulfide in the gas phase. Background technique [0002] No matter in industrial production or industrial tail gas, raw material gas containing hydrogen sulfide is very common, such as natural gas, semi-water gas, coke oven gas, synthesis gas, etc. Sulfur-containing industrial gas will cause equipment corrosion, catalyst poisoning, equipment corrosion, etc., and the emission of sulfur-containing waste gas will also cause serious environmental pollution problems. Containing 0.1% hydrogen sulfide in the atmosphere will cause headaches, dizziness and other symptoms, seriously affecting the normal life safety of residents. With social development and people's increasing requirements for environmental protection, the requirements for desulfurization are also getting higher and higher. There is an urgent n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/52B01D53/96C10L3/10C10K1/10C10K1/14C01B17/04
CPCB01D53/52B01D53/78B01D53/96B01D2251/304B01D2257/304C01B17/04C10K1/004C10K1/105C10K1/106C10K1/14C10L3/103
Inventor 初广文陈建峰孙宝昌邹海魁张亮亮罗勇赵宏董坤
Owner BEIJING UNIV OF CHEM TECH
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