Process for processing sulfur-containing heavy oil
US4298460A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1980 |
| Grant date | Nov 3, 1981 |
| Priority date | — |
| Expiry date | Mar 24, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for processing a sulfur-containing heavy oil, which comprises: PA1 in a first zone, catalytically cracking a sulfur-containing heavy oil in the presence of fluidized catalyst particles containing about 30 to 60 wt % Fe to thereby convert the heavy oil to a light oil, deposit sulfur-containing coke on the catalyst particles, and partially fixing the decomposed sulfur compounds with the reduced iron contained in the catalyst particles as iron sulfide; PA1 in a second zone, contacting the catalyst from the first zone with an oxygen containing gas in an amount less than that theoretically required to thereby partially combust the coke on the catalyst, reduce the iron in the catalyst, and fix the sulfur compounds contained in the coke as iron sulfide; and PA1 in a third zone, contacting the reduced catalyst from the second zone with steam in a fluidized manner to produce hydrogen and hydrogen sulfide and to convert the reduced iron and iron sulfide in the catalyst to iron oxides, with the iron oxide-containing catalyst obtained in the third zone being recirculated into the second zone to be reduced and a part of the reduced-state catalyst obtained in the second zone being reci…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.