Chevron U.s.a. Inc.

Lucy Melinda Bull

Thomas Van Harris

Donald Kuehne

Stacey Ian Zones

Dennis John O'Rear

Alexander E Kuperman

Allen Wayne Burton

William L Schinski

Richard O Moore, Jr

Hye Kyung C Timken

Philippus Rudolf Heydenrich

Quintin John Beukes

Gianni Guilio Eligio Bacco Rodriquez

Novel methods of treating a Fischer-Tropsch product stream with an acid are disclosed. Such methods are capable of removing contamination from the Fischer-Tropsch product stream such that plugging of the catalyst beds of a subsequent hydroprocessing step is substantially reduced.

Acid treatment of a fischer-tropsch derived hydrocarbon stream

A process for removing aluminum contaminants from the product of a Fischer-Tropsch synthesis reaction wherein said contaminants comprise at least 1 ppm of aluminum expressed as elemental metal in aluminum-containing contaminants having an effective diameter of less than 1 micron, said process comprising the steps of (a) collecting the contaminated Fischer-Tropsch product from the Fischer-Tropsch reactor; (b) forming a mixture comprising the contaminated Fischer-Tropsch product, at least an equal molar amount of a dicarboxylic acid containing from 2 to about 8 carbon atoms based upon the amount of aluminum present, and sufficient water for the dicarboxylic acid to form hydrogen ions; (c) maintaining the mixture under pre-selected conditions for a time sufficient for the aluminum contaminant and the dicarboxylic acid to form an aluminum containing precipitate having an effective diameter of greater than about 1 micron; (d) passing the mixture of step (c) through a particulate removal zone capable of removing substantially all of the aluminum-containing precipitate; and (e) recovering from the particulate removal zone a Fischer-Tropsch product containing less than about 1 ppm total aluminum.

Process for removing aluminum contaminants from Fischer-Tropsch feed streams using dicarboxylic acid

A novel crystalline aluminophosphate and metalloaluminophosphate of the molecular sieve type, denominated SSZ-51, is prepared by hydrothermal synthesis from reactive sources of aluminum and phosphorus, fluorine and an organic templating agent, 4-dimethylaminopyridine.

Crystalline molecular sieve SSZ-51 composition of matter and synthesis thereof

A catalyst composition comprising a low acidity, highly dealuminated ultra stable Y zeolite having an Alpha value of less than about 3 and Broensted acidity measured by FT-IR from about 1 to about 20, preferably from about 1-10, micro mole/g of, an amorphous cracking component and a catalytic amount of hydrogenation component selected from the group consisting of a Group VI metal, a Group VIII metal, and mixtures thereof is disclosed. The present invention provides for a process for converting hydrocarbonaceous oils comprising contacting the hydrocarbonaceous oils with the catalyst under suitable hydrocarbon conversion conditions. Such processes in include, but are not limited to, single stage hydrocracking, two-stage hydrocracking, series-flow hydrocracking, mild hydrocracking, lube hydrocracking, hydrotreating, lube hydrofinishing, hydrodesulphurization, hydrodenitrification, catalytic dewaxing and catalytic cracking.

Extremely low acidity ultrastable Y zeolite catalyst composition and process

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Pinole, CA, United States of America

Lucy Melinda Bull