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Process for producing hydrogen gas and carbon disulphide from hydrogen sulfide

A carbon disulfide, hydrogen production technology, applied in the direction of hydrogen production, etc., to achieve the effects of improved conversion rate, low temperature and simple operation

Active Publication Date: 2008-10-22
SHANGHAI BAIJIN CHEM GROUP
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Problems solved by technology

[0013] The present invention provides a kind of method of producing hydrogen and carbon disulfide by hydrogen sulfide in order to solve existing reaction (1) and (4) to have above-mentioned respective shortcoming respectively and the problem that the two are not combined to prepare hydrogen and carbon disulfide

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  • Process for producing hydrogen gas and carbon disulphide from hydrogen sulfide
  • Process for producing hydrogen gas and carbon disulphide from hydrogen sulfide
  • Process for producing hydrogen gas and carbon disulphide from hydrogen sulfide

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Embodiment Construction

[0023] A method for producing hydrogen and carbon disulfide from hydrogen sulfide, first in the carbon monoxide generator 1, coke is used as raw material, oxygen and carbon dioxide as gasification agent to prepare raw material gas carbon monoxide, and then includes the following steps:

[0024] a. Carbon monoxide and hydrogen sulfide are introduced into the hydrogen sulfide conversion tower 2 equipped with a low-temperature conversion catalyst 3 for reaction to generate a mixed product containing carbon monoxide, hydrogen sulfide, hydrogen and carbonyl sulfide. In this step, the feed gas CO / H 2 The volume ratio of S is 1.0-4.0, the catalytic reaction is carried out at normal pressure and 150-350°C, the reaction space velocity is 500-2000ml / g-cat·h, and the low-temperature conversion catalyst 3 is obtained from VIB group metal Cr , Mo, W, and Group VIII metals Fe, Co, and Ni are randomly selected and mixed in any proportion, and the carrier is Al 2 o 3 , SiO 2 、TiO 2 , ZrO ...

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Abstract

The invention relates to a method for preparing hydrogen and carbon disulfide, in particular to a method for preparing hydrogen and carbon disulfide by adopting hydrogen sulfide, which aims at solving the shortages existing in reaction (1) and reaction (4) and the problems of preparing hydrogen and carbon disulfide by combining the two reactions. The preparation method comprises the steps, hydrogen sulfide and coke are used as raw materials to generate hydrogen and carbonyl sulfide under the function of low-temperature transformation catalyst, carbonyl sulfide is separated by a cold solvent washing tower, hydrogen is separated by a hydrogen separation device, the obtained carbonyl sulfide is separated by a stripping tower or a rectifying tower so as to decompose the carbonyl sulfide into carbon dioxide and carbon disulfide under the function of low-temperature disproportionation catalyst, carbon disulfide is separated by a condenser so as to obtain carbon dioxide which is then adopted as gasification agent to prepare carbon monoxide. All reactions are carried out under low-temperature, which reduces the erosion of sulfide to equipment; the processes of the reactions and separation are simple and can be easily operated; the separated products can be used repeatedly, which reduces waste discharge and leads the industrial production to be possible.

Description

technical field [0001] The invention relates to a method for preparing hydrogen and carbon disulfide, in particular to a method for producing hydrogen and carbon disulfide from hydrogen sulfide. Background technique [0002] As we all know, hydrogen sulfide is a poisonous gas emitted in the natural gas and petroleum industry, so desulfurization and hydrogen sulfide treatment have become important processes in the petroleum and natural gas industry. At present, the most common method is to use the Claus sulfur recovery process, which partially oxidizes hydrogen sulfide to sulfur dioxide and recovers sulfur through a catalytic reaction, while hydrogen is oxidized to water and wasted. An ideal method for recycling hydrogen sulfide is to directly decompose it into hydrogen and sulfur at high temperature. As a high-quality clean energy, hydrogen can be widely used in various fields. If it is considered that the hydrogen required in the petroleum refining process is obtained from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/06C01B31/26
CPCY02E60/36
Inventor 孔庆然
Owner SHANGHAI BAIJIN CHEM GROUP
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