Technology and device for preparing industrial carbon monoxide with water gas

Abstract

The invention relates to a technology and a device for preparing industrial carbon monoxide with water gas. After heat exchange and separation of the water gas as well as three times of heat utilization, part of the water gas without heat exchange is reheated to the organic sulfur hydrolysis activity temperature, and then enters an organic sulfur hydrolysis reactor; after being exchanged heat with desalted water and circulating water, the water gas converted by the organic sulfur removes the hydrogen sulfide and carbon dioxide through NHD gas purification technology; the purified gas changes heat with the condensate separated from the water gas through condensation to be heated and then enters an organic sulfur reactor II; microcrystalline organic sulfur in the purified gas is converted into inorganic sulfur; and the converted gas is cooled through circulation water and then fine desulfuration reaction is carried out so as to produce high-quality refined gas. According to the technology, the defects of the traditional technology are overcome, raw material is saved, energy consumption is lowered, and pollutant is not discharged in producing process, so that the technology is a clean production technology route which is in accordance with the national condition, and is economical and reasonable, and advanced.

Description

technical field [0001] The invention relates to a process and a device for preparing carbon monoxide, belonging to the technical field of chemical engineering. Background technique [0002] In order to meet the needs of the development of fine chemicals and provide high-quality carbon monoxide raw material gas for oxo synthesis processes such as acetic acid and acetic anhydride, a process for preparing industrial carbon monoxide from water gas was developed using water gas as the gas source. [0003] There are two existing CO preparation processes, one is using coke as raw material and CO 2 and O 2 Mixed gas is used as a gasification agent to produce CO by intermittent fixed-bed gasification process, which has the disadvantages of high raw material prices, long production cycle, and high environmental protection pressure; the other is the traditional water gas-pressure swing adsorption process, which requires high energy consumption for the device , a large excess of H 2 ...

AI Technical Summary

Problems solved by technology

[0003] There are two existing CO preparation processes, one is using coke as raw material and CO 2 and O 2 Mixed gas is used as a gasification agent to produce CO by intermittent fixed-bed gasification process, which has the disadvantages of high raw material prices, long production cycle, and high environmental protection pressure; the other is the traditional water gas-pressure swing adsorption process, which requires high energy consumption for the device , a large excess of H 2 and part of CO cannot be fully utilized, resulting in large energy loss

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