Process for increased olefin yields from heavy feedstocks
US6149800A · kind A · utility
25Cited by
13References
20Claims
0Family size
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Key dates
| Filing date | Feb 24, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G69/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for upgrading petroleum feedstocks boiling in the distillate plus range, which feedstocks, when cracked, result in unexpected high yields of olefins. The feedstock is hydroprocessed in at least one reaction zone countercurrent to the flow of a hydrogen-containing treat gas. The hydroprocessed feedstock is then subjected to thermal cracking in a steam cracker or to catalytic cracking in a fluid catalytic cracking process. The resulting product slate will contain an increase in olefins compared with the same feedstock, but processed in by a conventional co-current hydroprocessing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.