Delayed coking process for producing free-flowing coke using low molecular weight aromatic additives
US7645375B2 · kind B2 · utility
3Cited by
46References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2005 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Feb 18, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B57/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A delayed coking process for making substantially free-flowing coke, preferably shot coke. A coker feedstock, such as a vacuum residuum, is heated in a heating zone to coking temperatures then conducted to a coking zone wherein volatiles are collected overhead and coke is formed. A low molecular weight additive is added to the feedstock prior to it being heated in the heating zone, prior to its being conducted to the coking zone, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.