Catalytic hydropyrolysis of carbonaceous material with char recycle
US5096569A · kind A · utility
9Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1991 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Jan 15, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/086
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a method for catalytically hydropyrolyzing carbonaceous material to produce liquid products boiling under about 550.degree. C. with reduced amounts of methane being formed. The process comprises (a) treating the carbonaceous material with as hydrogenation catalyst; (b) contacting the so-treated carbonaceous material with an effective amount of hydrogen, at an effective residence time, at a temperature below the critical temperature of rapid methane formation; (c) recovering the resulting liquids, gases, and char; and (d) recycling the char.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.