Methods for pre-conditioning fischer-tropsch light products preceding upgrading
AssigneeChevron U.S.A. Inc.
InventorsRichard O. Moore JR., Paul D. Cambern
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Abstract
Embodiments of the present invention are directed to methods for hydroprocessing Fischer-Tropsch products. The embodiments in particular are related to integrated methods for producing liquid fuels from a hydrocarbon stream provided by a Fischer-Tropsch synthesis process. The methods involves separating the Fischer-Tropsch products into a light fraction and a heavy fraction. The light fraction is pre-conditioned to remove contaminants such as CO2 prior to being subjected to hydroprocessing, either separately, or after having been being recombined with the heavy fraction. Any of the hydroprocessing steps may be accomplished in a single reactor.
Claims41
A method for producing a hydrocarbon stream from a Fischer-Tropsch synthesis process, the method comprising:
- a) isolating a light fraction and a heavy fraction from at least one product of the Fischer-Tropsch synthesis process;
- b) removing carbon oxide containing compounds from the light fraction to yield a treated light fraction and a carbon oxide containing gaseous fraction;
- c) subjecting the treated light fraction to at least one hydroprocessing step to yield an effluent;
- and
- d) separating at least one hydrocarbon stream from the effluent of the hydroprocessing step.
A method for producing a hydrocarbon stream from a Fischer-Tropsch synthesis process, the method comprising:
- a) isolating a light fraction and a heavy fraction from the products of the Fischer-Tropsch synthesis process;
- b) removing carbon oxide containing compounds from the light fraction to yield a treated light fraction and a carbon oxide containing gaseous fraction;
- c) subjecting the treated light fraction to a hydroprocessing step;
- d) combining the hydroprocessed treated light fraction with at least one portion of the heavy fraction to form a blend;
- and
- e) separating at least one hydrocarbon stream from the blend.
Dependencies are inferred from the claim text.