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Integrated warm gas desulfurization and gas shift for cleanup of gaseous streams

A material flow, gas technology, applied in the field of integrated process, can solve the problem of inability to remove sulfur compounds and solid particle pollutants

Inactive Publication Date: 2011-11-09
UOP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, for the current state of development of hot gas purification systems, under the same high temperature conditions, it is impossible to remove all other pollutants except sulfur compounds and solid particles

Method used

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  • Integrated warm gas desulfurization and gas shift for cleanup of gaseous streams
  • Integrated warm gas desulfurization and gas shift for cleanup of gaseous streams
  • Integrated warm gas desulfurization and gas shift for cleanup of gaseous streams

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Embodiment Construction

[0011] The present invention includes complete desulfurization (H 2 The integration of S and COS removal) method and CO-rotation process method, which uses solid catalysts at 250°C to 550°C in order to maximize the production of hydrogen from fuel gas and thereby promote clean enrichment CO 2 The capture. CO 2 The stream can be captured and concentrated downstream of the integrated desulfurization and CO rotation unit, which uses a physical solvent method ( figure 1 ), or alternatively use high temperature CO 2 Absorbent ( figure 2 ). This concept represents the next generation of syngas processing and applications, not only in the power generation industry but also in the production of chemicals and fuels.

[0012] The present invention includes COS hydrolysis and hydrogenation process methods, and H 2 S removal method, and integration with CO rotation process method, which uses solid catalyst at 250°C to 550°C in order to maximize the production of hydrogen from fuel gas, and...

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Abstract

The present invention involves a catalytic process for purifying a gas stream comprising purifying the gas stream at a temperature from 250 to 550 DEG C by removing sulfur compounds and including a gas shift reaction to convert carbon monoxide to carbon dioxide to produce a partially purified gas stream. The warm gas stream purification involves COS hydrolysis and hydrogenation to H2S, the removal of H2S, and a CO gas shift to convert CO to CO2 to produce a partially purified stream. Then the carbon dioxide and other impurities are removed from the partially purified gas stream.

Description

Background of the invention [0001] The present invention relates to the production of purified gas from a gas mixture containing carbon monoxide and various pollutants, including carbon dioxide, hydrogen sulfide and carbonyl sulfide. More specifically, the present invention relates to an integrated process that removes sulfur-containing compounds at 250°C to 550°C and performs a gas rotation reaction to convert carbon monoxide to carbon dioxide, which is subsequently removed from the gas stream . [0002] In the prior art and industrial practice, it is known that there are many methods to remove acid gas from a gas mixture containing acid gas. Among these known methods for acid gas removal from gas streams, including those using CO 2 And / or H 2 The method of physical absorption of S is different from other methods involving chemical reactions. When the raw material gas to be processed can be obtained under high pressure and contains a relatively large amount of acid gas componen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/62B01D53/86B01D53/48C01B32/50
CPCC01B2203/0485B01D2257/502B01D2257/304C01B2203/82C01B2203/045C01B3/52B01D53/8618B01D2257/308C01B3/16C01B2203/84B01D2257/406C01B2203/0415B01D53/75Y02C10/08C01B2203/0288B01D53/64C01B3/56Y02C10/04B01D2257/504B01D53/864C01B2203/0475B01D2257/706B01D53/1456B01D2257/408B01D2256/16Y02C10/06B01D2259/4009B01D53/58B01D2257/602Y02C20/40Y02P20/151
Inventor M·瑟班T·N·卡尔奈斯K·M·旺当布舍J·P·布雷迪R·B·小詹姆斯
Owner UOP LLC
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