Treatment of coal by alkylation or acylation to increase liquid products from coal liquefaction
US4092235A · kind A · utility
16Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1975 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Nov 26, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S208/951
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The production of liquid hydrocarbons from coal is significantly enhanced by alkylating or acylating the coal prior to subjecting the coal to liquefaction conditions. The introduction of aliphatic hydrocarbon radicals or acyl radicals, including carbon monoxide, into the coal structure is believed to permit more of the coal to undergo liquefaction at suitable liquefaction conditions. The alkylation or acylation reactions can be conducted in the presence or absence of added or extraneous catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.