[특허]Production of carbon monoxide by the gasification of carbonaceous materials

[미국특허] Production of carbon monoxide by the gasification of carbonaceous materials 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C01B-031/00
출원번호	US-0876009 (1978-02-08)
발명자 / 주소	Kamody John F. (Irwin PA)
출원인 / 주소	Koppers Company, Inc. (Pittsburgh PA 02)
인용정보	피인용 횟수 : 62 인용 특허 : 7

초록 ▼

An increased amount of carbon monoxide is produced in a process for the gasification of carbonaceous materials by employing a reverse water gas shift reaction in the process. Raw gas produced by the gasification of carbonaceous materials contains predominantly carbon monoxide and hydrogen along with hydrogen sulfide, carbon dioxide, water and methane. Carbon dioxide is separated from the raw gas as is the hydrogen sulfide. Thereafter, the carbon monoxide is separated from the raw gas to yield one portion of the carbon monoxide product gas. After the removal of carbon monoxide the raw gas consists of a hydrogen-rich gas. The hydrogen-rich gas which may be purified is mixed with the previously separated carbon dioxide along with any imported carbon dioxide and along with a recycle gas from a catalytic reaction loop. This mixed gas is conveyed to a heat exchanger in the catalytic reaction loop and passed through a heat exchanger located immediately after the gasifier through which the raw product gas passes. In the heat exchanger the hot raw product gas indirectly contacts the mixed gas and transfers some of its sensible heat to the mixed gas to effect the catalytically promoted, endothermic reaction of carbon dioxide and hydrogen to produce a carbon monoxide-containing gas. The indirect contacting for heat exchange is conducted in a manner that limits the accumulation of elemental carbon from any of the carbon-containing components of the mixed gas. The carbon monoxide is separated from the other components of the carbon monoxide-containing gas to yield a second portion of carbon monoxide gas which is then combined with the first portion of carbon monoxide product gas to give the increased amount of carbon monoxide product gas.

대표청구항 ▼

A process for producing increased amounts of a carbon monoxide-rich gas in the gasification of carbonaceous materials, comprising: (a) reacting the carbonaceous materials with a gasifying entraining medium selected from the group comprising oxygen; oxygen and steam; oxygen and carbon dioxide; oxygen, carbon dioxide, and steam; oxygen and water; oxygen, water and carbon dioxide at temperatures in the range of about 1300°F. to about 3500°F. at a pressure in the range of about 1 to about 175 atmospheres absolutes to produce raw gases containing predominantly carbon monoxide and hydrogen, along with carbon dioxide, water, hydrogen sulfide, and methane; (b) contacting indirectly the hot raw gas in a heat exchanger with a gas containing predominantly carbon dioxide and hydrogen that is in contact with a water gas shift reaction catalyst, thereby cooling said raw gas while simultaneously supplying heat to the carbon dioxide and hydrogen containing gas; (c) treating the cooled raw gas to remove hydrogen sulfide, carbon dioxide, and water from the raw gas; (d) separating and collecting carbon monoxide, as a first portion of the carbon monoxide-rich gas product, and hydrogen from the treated, cooled raw gas in different zones; (e) combining the separated and collected hydrogen with carbon dioxide to form a gas containing predominantly carbon dioxide and hydrogen; (f) conveying the gas containing predominantly carbon dioxide and hydrogen to the heat exchanger of step (b) to indirectly contat the raw gas while the gas containing predominantly carbon dioxide and hydrogen is in contact with a water gas shift reaction catalyst wherein the hot raw gas provides the heat necessary to perform the endothermic reaction between carbon dioxide and hydrogen to produce the carbon monoxide-containing gas; (g) separating and collecting the carbon monoxide from the carbon monoxide-containing gas; and (h) combining said carbon monoxide with the first portion of carbon monoxide previously collected to produce a carbon monoxide-rich gas.

이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

Singleton Thomas C. (Texas City TX), Catalysis of water-gas shift reaction.
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Staege Hermann (Essen DEX), Process for producing a carbon monoxide-rich gas.
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Greene Marvin (Somerset NJ), Process of treating carbonaceous material with carbon dioxide.
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Cines Martin R. (Bartlesville OK) Poska Forrest L. (Bartlesville OK), Production of carbon monoxide from carbonaceous material and zinc oxide.
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Marion ; Charles P., Production of purified synthesis gas and carbon monoxide.
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Paull Peter L. (Weston CT) Schlinger Warren G. (Pasadena CA), Synthesis gas from gaseous CO₂-solid carbonaceous fuel feeds.
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[미국특허] Production of carbon monoxide by the gasification of carbonaceous materials 원문보기

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[미국특허] Production of carbon monoxide by the gasification of carbonaceous materials 원문보기

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