Process for making light hydrocarbonaceous liquids in a delayed coker
US5316655A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1991 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Nov 13, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G51/023
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for making a light hydrocarbonaceous liquid in a delayed coker comprising: PA1 (A) providing a hydrocarbonaceous feed to the coke drum and heating the feed to a temperature of about 800.degree. F. to about 1200.degree. F. to provide an intermediate product; and PA1 (B) introducing said intermediate product into the coke drum, operating the coke drum to convert the intermediate product to a final comprising light liquid and coke, and separating the light liquid from the coke; PA1 step (A) being conducted in combination with either step (A) (i) or step (A) (ii); PA1 Step (A) (i) comprising maintaining the feed during step (A) in an enclosed space and subjecting the feed to a pressure that is at least about 500 psig and is sufficient to maintain the specific gravity of the contents of the enclosed space at least about 0.05 to convert said feed to said intermediate product, the intermediate product containing fractions having a lower boiling point than the initial boiling point of the feed and/or a higher boiling point than the final boiling point of the feed, then reducing the pressure on the intermediate product below about 500 psig prior to step (B); PA1 step (A) (ii) comp…
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