Process for producing synthetic coking coal of high volatile matter content
US4257778A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Aug 28, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B39/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing a synthetic coking coal of high volatile matter content by thermal cracking of a heavy hydrocarbon through the delayed coking process comprising heating said heavy hydrocarbon in a furnace to a temperature between about 380.degree. C. and 500.degree. C. and sufficient to initiate cracking; introducing said heated heavy hydrocarbon into a coking drum where it is maintained at a temperature and for a time sufficient to effect cracking to thereby produce a thermally cracked residue having a volatile matter content of from about 25 to 45 wt % and a Gieseler fluidity of at least about 50,000 ddpm; withdrawing said thermally cracked residue from the coking drum at a temperature selected so as to satisfy the relation: EQU T.ltoreq.0.293x.sup.2 -26.12x+790 where T is the temperature (.degree.C.) of the thermally cracked residue; x is the volatile matter content of the residue (wt %) and is in the range of from about 25 to 45 wt %, and bringing said residue into contact with water for cooling and solidification; and the synthetic coking coal product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.