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High-throughput low-temperature plasma system for decomposing hydrogen sulfide and method for decomposing hydrogen sulfide

A low-temperature plasma and plasma technology, which is applied in the field of ion chemistry, can solve the problems of low hydrogen sulfide conversion rate and high decomposition energy consumption, and achieve the effects of long-term operation, flexible temperature control, high continuity and stability.

Active Publication Date: 2022-02-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The object of the present invention is to provide a new high-throughput low-temperature plasma system for decomposing hydrogen sulfide and its application in order to overcome the defects of low conversion rate of hydrogen sulfide and high energy consumption for decomposition in the hydrogen sulfide decomposition process provided by the prior art The method for decomposing hydrogen sulfide by the high-throughput low-temperature plasma system

Method used

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  • High-throughput low-temperature plasma system for decomposing hydrogen sulfide and method for decomposing hydrogen sulfide

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specific Embodiment approach

[0093]Nitrogen gas is passed from the reactor inlet to the inner cylinder of the high-flux plasma reaction device to remove the air in the discharge area, and the gas is drawn out from the product outlet. At the same time, the heat transfer medium is introduced into the outer cylinder from the heat transfer medium inlet, and the introduced heat transfer medium is led out from the heat transfer medium outlet. The temperature of the heat transfer medium is maintained at the temperature required by the system reaction. Then feed raw material gas containing hydrogen sulfide from the reactor inlet to the inner cylinder of the high-throughput plasma reaction device. The raw material gas fills each reaction tube. A plasma discharge field is formed between the high voltage electrode and the ground electrode. The hydrogen sulfide gas is ionized in the discharge area and decomposed into hydrogen and elemental sulfur. The elemental sulfur produced by the discharge slowly flows down the ...

Embodiment 1

[0147] use has image 3 The high-throughput low-temperature plasma system for decomposing hydrogen sulfide in the flow chart shown in the flow chart performs the hydrogen sulfide decomposition reaction, and the low-temperature plasma reactor in this embodiment has figure 1 structure shown.

[0148] The process flow of this embodiment is as shown in the aforementioned specific implementation, and the structural parameters of the low-temperature plasma reactor are as follows:

[0149] Low temperature plasma reactors include:

[0150] An inner cylinder, the inner cylinder is respectively provided with a reactor inlet, a gas product outlet and a liquid product outlet, and the inner cylinder contains 4 reaction tubes arranged side by side, and the top and bottom of each of the reaction tubes communicate with each other correspondingly, The raw materials that enter from the inlet of the reactor can enter into each of the reaction tubes respectively, and the gaseous products produc...

Embodiment 2

[0169] use has image 3 The high-throughput low-temperature plasma system for decomposing hydrogen sulfide in the flow chart shown in the flow chart performs the hydrogen sulfide decomposition reaction, and the low-temperature plasma reactor in this embodiment has figure 2 structure shown.

[0170] The process flow of this embodiment is as shown in the aforementioned specific implementation, and the structural parameters of the low-temperature plasma reactor are as follows:

[0171] Low temperature plasma reactors include:

[0172] An inner cylinder, the inner cylinder is respectively provided with a reactor inlet, a gas product outlet and a liquid product outlet, and the inner cylinder contains 4 reaction tubes arranged side by side, and the top and bottom of each of the reaction tubes communicate with each other correspondingly, The raw materials that enter from the inlet of the reactor can enter into each of the reaction tubes respectively, and the gaseous products produ...

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Abstract

The invention relates to the field of plasma chemistry, and discloses a high-throughput low-temperature plasma system for decomposing hydrogen sulfide and a method for decomposing hydrogen sulfide. The system includes a gas supply-gas distribution unit, a plasma reaction unit and a product separation unit. The reaction unit contains a low-temperature plasma reactor, which includes: an inner cylinder (1) containing a reaction tube (14); an outer cylinder (2) nested outside the inner cylinder; An electrode (3); a ground electrode (4) arranged on the side wall of the reaction tube or forming the side wall of the reaction tube; a barrier medium (6), the barrier medium forms the side wall of the reaction tube, or the barrier medium is arranged around the reaction tube on the side wall of the central high-voltage electrode (3), or the barrier medium is arranged on the outer surface of the central high-voltage electrode (3). The high-throughput low-temperature plasma system for decomposing hydrogen sulfide and the method for decomposing hydrogen sulfide provided by the invention have the advantage of high conversion rate of hydrogen sulfide.

Description

technical field [0001] The invention relates to the field of plasma chemistry, in particular to a high-throughput low-temperature plasma system for decomposing hydrogen sulfide and a method for decomposing hydrogen sulfide. Background technique [0002] Hydrogen sulfide (H 2 S) is a highly toxic and foul-smelling acid gas, which not only causes corrosion of metals and other materials, but also easily leads to catalyst poisoning and deactivation in chemical production; in addition, hydrogen sulfide can also endanger human health and cause environmental pollution. Therefore, the harmless treatment of a large amount of hydrogen sulfide gas produced in industrial fields such as oil, natural gas, coal and mineral processing needs to be solved urgently, no matter in terms of process requirements, equipment maintenance or environmental protection requirements. [0003] At present, the Claus method is commonly used in industry to treat hydrogen sulfide, and the method is to partial...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/32C01B17/04C01B3/04
CPCB01D53/32C01B17/0495C01B3/04B01D2259/818B01D2257/304Y02E60/36
Inventor 张婧王林金满平任君朋张铁石宁徐伟
Owner CHINA PETROLEUM & CHEM CORP
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