Two-stage process for obtaining significant olefin yields from residua feedstocks
US5879535A · kind A · utility
1Cited by
8References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 17, 1996 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G9/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A two-stage process for obtaining a substantial amount of olefinic product from a residua feedstock. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated at temperatures from about 500.degree. to 600.degree. C. and having a short vapor residence time, and the second stage thermal conversion zone operated at a temperature of about 700.degree. C. to about 1100.degree. C., and also having a short vapor residence time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.