Mechanical deaeration of bituminous froth
US6391190B1 · kind B1 · utility
26Cited by
22References
12Claims
0Family size
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Key dates
| Filing date | Mar 4, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Mar 4, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/047
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aerated bitumen froth obtained from oil sands must be deaerated so that it can be pumped through a pipeline. Mechanical shearing is effective to deaerate bitumen froth to an air content of below 10 volume percent. Mechanical deaeration of bitumen froth can be achieved either by passing the froth through a confining passageway and shearing the froth with an impeller while it is in the passageway or temporarily retaining the aerated froth in a tank and circulating it repeatedly through a pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.