Process for producing high-crystalline petroleum coke
US4049538A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1975 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | Sep 15, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B55/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A high-crystalline petroleum coke is produced from low-sulfur petroleum feedstock such as virgin crude oil, distillation residuum and cracked residium by subjecting the feedstock to preheat treatment under specific conditions to effect cracking and soaking thereof, subjecting the preheat-treated feedstock to flash distillation to remove non-crystalline substances contained therein as pitch and to recover distillate, fractionating the distillate to provide a heavy residue and subjecting the heavy residue to a delayed coking under specific conditions to produce the desired coke which has a coefficient of thermal expansion of less than 1.0 .times. 10.sup.-6 /.degree. C over 100.degree.-400.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.