Deaerator circuit for bitumen froth
US4116809A · kind A · utility
23Cited by
2References
1Claims
0Family size
Assignees
- Her Majesty the Queen in right of Canada, as represented by the Minister of Energy, Mines and Resources Canada
- Her Majesty the Queen in right of the Province of Alberta, Government of the Province of Alberta, Department of Energy and Natural Resources, Alberta Syncrude Equity
- Ontario Energy Corp.
- Imperial Oil Limited
- Canada-Cities Service, Ltd.
- Gulf Oil Canada Ltd.
Inventor
Key dates
| Filing date | Dec 2, 1976 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Dec 2, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/047
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Bitumen froth streamsfrom the primary separation vessel and secondary flotation cells are gravity transferred into one or more columns and heated and deaerated therein by passing them countercurrent to steam. The heated deaerated froth is then pumped with centrifugal pump means to the froth treatment circuit. By deaerating and heating before pumping, the froth is converted from a form difficult to pump to one which is relatively easy to pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.