Process for thermal hydrocracking of coal
US4412908A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1982 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | Apr 7, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for liquefying and gasifying coal by thermal treatment in the presence of hydrogen gas for hydrocracking is disclosed. The process comprises a sequence of the following two steps: PA0 (1) coal fines are injected into a heated hydrogen gas stream at a pressure of from 35 to 250 kg/cm G such that they are rapidly heated to a temperature of from 750.degree. to 1100.degree. C. for thermal cracking thereof; and PA0 (2) the resulting liquid product is subjected to hydrocracking for a period of from 1.0 to 60 seconds at a temperature that is lower than the temperature used in the first step and which is in the range of from 570.degree. to 850.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.