Separation of catalyst from Fischer-Tropsch slurry
Abstract
In a catalytic process for converting synthesis gas including hydrogen and carbon monoxide to hydrocarbons and oxygenates by a slurry Fischer-Tropsch synthesis, the wax product along with dispersed catalyst is removed from the slurry and purified by removing substantially all of the catalyst prior to upgrading the wax and returning a portion to the Fischer-Tropsch reaction. Separation of the catalyst particles from the wax product is accomplished by dense gas and/or liquid extraction in which the organic compounds in the wax are dissolved and carried away from the insoluble inorganic catalyst particles that are primarily inorganic in nature. The purified catalyst-free wax product can be subsequently upgraded by various methods such as hydrogenation, isomerization, hydrocracking, conversion to gasoline and other products over ZSM-5 aluminosilicate zeolite, etc. The catalyst particles are returned to the Fischer-Tropsch Reactor by mixing them with a wax fraction of appropriate molecular weight, boiling point and viscosity to avoid reactor gelation. 2 figs.
- Inventors:
- Publication Date:
- Research Org.:
- Burns and Roe Inc
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 675798
- Patent Number(s):
- US 5,827,903/A/
- Application Number:
- PAN: 8-594,969
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- AC22-89PC88400
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 27 Oct 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 10 SYNTHETIC FUELS; FISCHER-TROPSCH SYNTHESIS; CATALYSTS; WAXES; SEPARATION PROCESSES; EXTRACTION; DISSOLUTION; REFINING; RECYCLING
Citation Formats
White, C M, Quiring, M S, Jensen, K L, Hickey, R F, and Gillham, L D. Separation of catalyst from Fischer-Tropsch slurry. United States: N. p., 1998.
Web.
White, C M, Quiring, M S, Jensen, K L, Hickey, R F, & Gillham, L D. Separation of catalyst from Fischer-Tropsch slurry. United States.
White, C M, Quiring, M S, Jensen, K L, Hickey, R F, and Gillham, L D. 1998.
"Separation of catalyst from Fischer-Tropsch slurry". United States.
@article{osti_675798,
title = {Separation of catalyst from Fischer-Tropsch slurry},
author = {White, C M and Quiring, M S and Jensen, K L and Hickey, R F and Gillham, L D},
abstractNote = {In a catalytic process for converting synthesis gas including hydrogen and carbon monoxide to hydrocarbons and oxygenates by a slurry Fischer-Tropsch synthesis, the wax product along with dispersed catalyst is removed from the slurry and purified by removing substantially all of the catalyst prior to upgrading the wax and returning a portion to the Fischer-Tropsch reaction. Separation of the catalyst particles from the wax product is accomplished by dense gas and/or liquid extraction in which the organic compounds in the wax are dissolved and carried away from the insoluble inorganic catalyst particles that are primarily inorganic in nature. The purified catalyst-free wax product can be subsequently upgraded by various methods such as hydrogenation, isomerization, hydrocracking, conversion to gasoline and other products over ZSM-5 aluminosilicate zeolite, etc. The catalyst particles are returned to the Fischer-Tropsch Reactor by mixing them with a wax fraction of appropriate molecular weight, boiling point and viscosity to avoid reactor gelation. 2 figs.},
doi = {},
url = {https://www.osti.gov/biblio/675798},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 27 00:00:00 EST 1998},
month = {Tue Oct 27 00:00:00 EST 1998}
}