In situ formation of coal gasification catalysts from low cost alkali metal salts
US4551155A · kind A · utility
65Cited by
3References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 7, 1983 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Jul 7, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S44/905
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A carbonaceous material, such as crushed coal, is admixed or impregnated with an inexpensive alkali metal compound, such as sodium chloride, and then pretreated with a stream containing steam at a temperature of 350.degree. to 650.degree. C. to enhance the catalytic activity of the mixture in a subsequent gasification of the mixture. The treatment may result in the transformation of the alkali metal compound into another, more catalytically active, form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.