Production of carbon monoxide by the gasification of carbonaceous materials
US4265868A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 1978 |
| Grant date | May 5, 1981 |
| Priority date | — |
| Expiry date | Feb 8, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
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, endo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.