Process for cracking heavy hydrocarbons into light oils and producing hydrogen
US4325812A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1980 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Sep 29, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is described for cracking a heavy hydrocarbon to form a light oil and for producing hydrogen by the use of a catalyst containing at least 30 wt % Fe which comprises a first step wherein steam and heavy hydrocarbon are simultaneously contacted with the catalyst in a reduced state to produce hydrogen, cracked gases, and a cracked light oil, to oxidize the reduced-state catalyst, and to deposit coke on the catalyst; and a second step wherein the oxidized-state catalyst on which said coke is deposited is contacted with an oxygen-containing gas insufficient for achieving complete combustion of the coke, to thereby partially combust the coke and regenerate the catalyst to a reduced state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.