Catalytic filtering of a Fischer-Tropsch derived hydrocarbon stream
AssigneeChevron U.S.A. Inc.
InventorsJerome F. Mayer, Andrew Rainis, Richard O. Moore, Jr.
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Abstract
Novel methods of treating a Fischer-Tropsch derived hydrocarbon stream with an active filtering catalyst are disclosed. Such methods are capable of removing soluble (and ultra-fine particulate) contamination, fouling agents, and/or plugging precursors from the Fischer-Tropsch derived hydrocarbon stream such that plugging of the catalyst beds of a subsequent hydroprocessing process is substantially avoided.
Claims22
A method of removing contamination comprising Al from a Fischer-Tropsch derived hydrocarbon stream, the method comprising:
- a) filtering a Fisher-Tropsch derived hydrocarbon stream to produce a filtered hydrocarbon stream, wherein the filtered hydrocarbon stream comprises contamination comprising Al;
- b) passing the filtered hydrocarbon stream to a catalytic filtering zone, the catalytic filtering zone containing a catalyst comprising at least one metal selected from the group consisting of Group VI and Group VIII elements at conditions sufficient to remove at least a portion of the contamination comprising Al from the filtered hydrocarbon stream, thus forming a purified hydrocarbon stream;
- c) passing the purified hydrocarbon stream to a hydroprocessing zone;
- and
- d) recovering at least one fuel product from the hydroprocessing zone.
A method of removing contamination comprising Al from a Fischer-Tropsch derived hydrocarbon stream, the method comprising:
- a) filtering a Fisher-Tropsch derived hydrocarbon stream to remove contamination comprising Al having particle sizes larger than about 1 micron to produce a filtered hydrocarbon stream;
- b) passing the filtered hydrocarbon stream to a catalytic filtering zone, the catalytic filtering zone containing a catalyst comprising at least one metal selected from the group consisting of Group VI and Group VIII elements at conditions sufficient to remove at least a portion of the contamination comprising Al having particle sizes less than 0.1 microns from the filtered hydrocarbon stream, thus forming a purified hydrocarbon stream;
- c) passing the purified hydrocarbon stream to a hydroprocessing zone;
- and
- d) recovering at least one fuel product from the hydroprocessing zone.
Dependencies are inferred from the claim text.