System and process for producing diluent from dilbit, transportation, and treatment of heavy oil
US11697984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2021 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Nov 25, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G33/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing diluent for use in a hydrocarbon recovery process includes heating a dilbit feed stream comprising hydrocarbons produced from a hydrocarbon reservoir and an added diluent, to a temperature of 350° C. or less, fractionating the dilbit feed stream after heating to produce a light fraction and a heavy fraction, the light fraction comprising the diluent, additional light hydrocarbons, and sour water, separating the sour water from a remainder of the light fraction, and stabilizing the remainder of the light fraction to provide recovered diluent and cooling the recovered diluent. A volume of the recovered diluent is greater than a volume of the added diluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.