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Method and system for synthesizing carbon disulfide by plasmas

A carbon disulfide, plasma technology, applied in the direction of carbon disulfide, carbon-sulfur compounds, etc., can solve the problems of large risk factors, high equipment investment and energy input, harsh reaction conditions, etc. The effect of relaxed conditions

Pending Publication Date: 2018-06-22
山西铁峰化工有限公司
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Problems solved by technology

These methods in the prior art have high equipment investment and energy input, harsh reaction conditions, no reaction under normal pressure and normal temperature, and large risk factors

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  • Method and system for synthesizing carbon disulfide by plasmas

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Embodiment Construction

[0021] Referring to the accompanying drawings, an embodiment of a method and system for synthesizing carbon disulfide by plasma according to the present invention is characterized by including the following steps:

[0022] Step 1: Premix hydrogen sulfide and methane in the premixing pipeline 1 which is isolated from the atmosphere;

[0023] Step two, pass the mixed gas obtained in step one into the array cylindrical sleeve plasma reactor 2, input high-frequency and high-voltage alternating current to the plasma reactor 2, and ionize the mixed gas in the plasma reactor 2 to excite the plasma. Containing a large number of active particles, CHx and HxS synthesize CS under the energy provided by electric field and arc 2 And H 2 , The reaction produces a certain amount of carbon element and sulfur element;

[0024] Step 3: Collect the product obtained in step 2 through the dust removal device 4 to collect the solid elemental powder, control the gas supply ratio, and ensure that the vast m...

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Abstract

The invention relates to a method and a system for synthesizing carbon disulfide by plasmas. The method comprises the following steps that 1, hydrogen sulfide and methane are premixed; 2, mixed gas obtained in the first step is introduced into a plasma reactor; mixed gas is ionized for exciting the plasmas; 3, solid elementary substance powder in the product obtained in the second step is separated and collected; 4, CS2 and H2S in CS2 and H2S mixed gas obtained after the separation of the solid elementary substance powder in the third step are separated to obtain a CS2 product. The system comprises a premixing pipeline, the plasma reactor, a booster fan, a dust removal device, a CS2 adsorption collector and an H2S adsorption device which are in sequential connection. The method and the system have the advantages that the plasma technology is used; methane and hydrogen sulfide are used for synthesizing the carbon disulfide; compared with the process technology for preparing the carbon disulfide through natural gas and sulfur reaction in the prior art, the method has the advantages that the equipment investment and the energy source investment are low; the reaction conditions are wide; the reaction can be realized at normal temperature and pressure; the dangerous factors are greatly reduced, and the like.

Description

Technical field [0001] The invention relates to sulfur compounds, and relates to a gas phase method, in particular to a method and system for synthesizing carbon disulfide by plasma. Background technique [0002] Carbon disulfide (CS 2 ) Is an important chemical raw material, generally synthesized by the reaction of carbonaceous material and sulfur steam at high temperature. Mainly used in man-made fibers, cellophane, pesticides, carbon tetrachloride, rubber, metallurgical beneficiation, petroleum smelting and other production sectors. At present, its main function is to be used as a solvent and synthetic raw material for some fine chemical products, and it can also be used as an insecticide and a grain fumigant. [0003] Traditionally, carbon disulfide uses the ancient electric furnace method, using charcoal and sulfur as raw materials. This process consumes huge forest resources and produces toxic and harmful hydrogen sulfide gas during the production process. The process is old...

Claims

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Application Information

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IPC IPC(8): C01B32/75
Inventor 朱远斌章劲松
Owner 山西铁峰化工有限公司
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