Black oil conversion process startup and shutdown methods
US3992284A · kind A · utility
0Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Sep 17, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G49/24
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods of starting up and shutting down reactors used in hydrocracking and hydrodesulfurization of black oils. The reactor is flushed with a heavy vacuum gas oil between the circulation of the black oil feed stream and the lighter hydrocarbon stream used during the low temperature portion of the operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.