Grid type high-throughput plasma reactor and hydrogen sulfide decomposing method

A plasma and reactor technology, applied in the field of plasma chemistry, can solve the problems of low conversion rate of hydrogen sulfide, high energy consumption, and inability to realize large flow rate, and achieve high conversion rate of hydrogen sulfide, low energy consumption, and long cycle running effect

Pending Publication Date: 2019-08-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a new grille for overcoming the defects of low hydrogen sulfide conversion rate, high energy consumption and inability to realize large-flow hydr

Method used

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  • Grid type high-throughput plasma reactor and hydrogen sulfide decomposing method
  • Grid type high-throughput plasma reactor and hydrogen sulfide decomposing method
  • Grid type high-throughput plasma reactor and hydrogen sulfide decomposing method

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Experimental program
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specific Embodiment approach

[0109] Nitrogen gas is introduced into the inner cylinder of the grid-type high flux plasma reactor from the reactant inlet to clear the air in the discharge area, and the gas is led out from the product outlet. At the same time, the heat conduction medium is introduced into the outer cylinder from the heat conduction medium inlet, and the introduced heat conduction medium is led out from the heat conduction medium outlet. The temperature of the heat transfer medium is maintained at the temperature required for the system reaction. Then, feed the raw material gas containing hydrogen sulfide into the inner cylinder of the grid-type high-flux plasma reactor from the reactant inlet. The raw material gas fills each reaction tube. After the raw material flow is stable, the high-voltage power supply is turned on, and the voltage and The frequency causes a plasma discharge field to be formed between the high-voltage electrode and the ground electrode. The hydrogen sulfide gas is ioni...

Embodiment 1

[0122] use figure 1 The shown grid type high flux plasma reactor performs hydrogen sulfide decomposition reaction. The specific structure and structural parameters of the grid type high flux plasma reactor are as follows:

[0123] The reactor includes:

[0124] An inner cylinder, which is respectively provided with a reactant inlet and a product outlet;

[0125] An outer cylinder, the outer cylinder is nested outside the inner cylinder, and the outer cylinder is provided with a heat-conducting medium inlet and a heat-conducting medium outlet respectively, and the heat-conducting medium introduced by the heat-conducting medium inlet can be enclosed in the inner The outer circumference of the barrel, and the heat-conducting medium can be led out from the heat-conducting medium outlet;

[0126] High-voltage electrodes, the high-voltage electrodes are arranged in the inner cylinder, and the high-voltage electrodes are arranged in 10 layers in the inner cylinder; in each high-voltage elect...

Embodiment 2

[0140] This embodiment adopts figure 2 The shown grid type high flux plasma reactor performs hydrogen sulfide decomposition reaction. The specific structure and structural parameters of the grid type high flux plasma reactor are as follows:

[0141] The reactor includes:

[0142] An inner cylinder, which is respectively provided with a reactant inlet and a product outlet;

[0143] An outer cylinder, the outer cylinder is nested outside the inner cylinder, and the outer cylinder is provided with a heat-conducting medium inlet and a heat-conducting medium outlet respectively, and the heat-conducting medium introduced by the heat-conducting medium inlet can be enclosed in the inner The outer circumference of the barrel, and the heat-conducting medium can be led out from the heat-conducting medium outlet;

[0144] High-voltage electrodes, the high-voltage electrodes are arranged in the inner cylinder, and the high-voltage electrodes are arranged in 10 layers in the inner cylinder; in eac...

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Abstract

The invention relates to the field of plasma chemistry, and discloses a grid type high-throughput plasma reactor and a hydrogen sulfide decomposing method. The grid type high-throughput plasma reactorcomprises: an inner cylinder (1); an outer cylinder (2); high-voltage electrodes (3) and grounding electrodes (4) arranged in the inner cylinder (1); and a barrier medium (6) arranged on the outer surface of the high-voltage electrode (3) and/or the grounding electrode (4), wherein various high-voltage electrode layers and various grounding electrode layers are arranged in a staggered manner, such that the one grounding electrode is inserted between the two adjacent high-voltage electrodes in each high-voltage electrode layer so as to form a high-voltage-grounding mixing layer alternately containing the high-voltage electrodes and the grounding electrodes. According to the present invention, the grid type high-throughput plasma reactor has advantages of high hydrogen sulfide conversion rate, low energy consumption and high-flow hydrogen sulfide treatment.

Description

Technical field [0001] The invention relates to the field of plasma chemistry, in particular to a grid-type high-flux plasma reactor 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 harms human health and pollutes the environment. At present, the large and medium-sized oil refineries in my country adopt the traditional Claus method (Claus) to treat H-containing 2 S tail gas, and recover sulfur. This method only recovers the sulfur in hydrogen sulfide, but converts precious hydrogen into water. From the perspective of comprehensive utilization of resources, in the traditional hydrogen sulfide recovery process, hydrogen resources have not been effectively used. Therefore, the decomposition of hydrogen sulfide into sulfur and hydrogen has gradually become a technical field that domestic and foreign researchers fo...

Claims

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Application Information

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IPC IPC(8): C01B17/04C01B3/04
CPCC01B17/046C01B3/04Y02E60/36
Inventor 牟善军张婧任君朋张铁石宁徐伟李亚辉
Owner CHINA PETROLEUM & CHEM CORP
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