CANMET residuum hydrocracking: Advances through the control of polar aromatics
- Petro-Canada, Calgary, Alberta (Canada)
- Univ. of Calgary, Alberta (Canada). Dept. of Chemical and Petroleum Engineering
The beginnings of the CANMET hydrocracking process took root in the mid 1970`s. An ongoing program of development has broadened this novel hydrocracking process for upgrading Canadian oil sands bitumen to successfully process a wide range of refinery residues from conventional crudes as well as residues from refinery conversion units. FCCU slurry, visbreaker vacuum tower bottoms, deasphalter bottoms residue, and poor quality gas oils from cokers and visbreakers are all upgradable in the CANMET process. This paper gives an overview of the process, describes its demonstrated performance, and outlines recent technology improvements. The CANMET slurry hydrocracking process utilizes a solid additive to inhibit coke formation and is capable of 975+ F conversion levels in excess of 90%. Typical hydrogen partial pressures are in the range of 1,500 psi. Demonstration in a 5,000 BPD unit over a seven-year period has shown that operation is easier to control than a conventional gas oil hydrocracker. The absence of an active catalyst combined with the auto-cooling effect of the well back mixed upflow reactor leads to an extremely stable reactor operation. The reactor is stable even if reactor quenches are not used for control.
- OSTI ID:
- 403515
- Report Number(s):
- CONF-960356-; TRN: IM9651%%550
- Resource Relation:
- Conference: 1996 National Petroleum Refiners Association annual meeting, San Antonio, TX (United States), 17-19 Mar 1996; Other Information: PBD: 1996
- Country of Publication:
- United States
- Language:
- English
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