Reduction of coker furnace tube fouling in a delayed coking process
US6270656A · kind A · utility
6Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Aug 9, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G9/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a delayed coking process, furnace tube fouling is minimized by including a measured amount of full boiling range heavy gas oil as an additive in the furnace feed, preferably by forced recycle from a heavy gas oil stream. An additive is preferably supplied directly to individual furnace tubes by multiple circumferential injection upstream of each tube receiving the additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.