W. R. Grace Co.-Conn.

Advanced Refining Technologies LLC

Meenakshi Sundaram Krishnamoorthy

Michael Scott Ziebarth

Wu-Cheng Cheng

Stanislaw Plecha

Rong He

Bharat M Patel

Stephen Raymond Schmidt

John Allen Rudesill

Roger Jean Lussier

George Yaluris

Xinjin Zhao

Ranjit Kumar

Manoj M Koranne

Heiko Morell

Katherine W Dougan, Legal Representative

Timothy Dougan

Wu Cheng Cheng

Jochen G Metzger

Philip S Deitz

Wu- Cheng Cheng

Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 &#x212b; and 130 &#x212b; and less than 2% in pores having a diameter above 1000 &#x212b;. Catalysts prepared from the supports contain Groups 6, 9 and 10 metals or metal compounds, and optionally phosphorus, supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved sulfur and MCR conversion in hydrotreating processes.

Resid hydrotreating catalyst containing titania

The process of this invention removes impurities from transesterification products comprising primarily fatty acid alkyl esters (FAAE) that are being processed for final fuel products, such as biodiesel. The inventive process is catalytic, and the resulting ester is suitable for use as biodiesel. Metal oxide and mixed metal oxide catalysts are particularly suitable. The invention is particularly suitable for treating fatty acid alkyl ester compositions comprising impurities such as glycerin, sterol glycosides, and/or triglyceride, diglyceride and/or monoglyceride. The invention is particularly useful in treating FAAE transesterification products made using homogeneous alkali catalysts. The treated ester exhibits improved performance under cold weather conditions, which can be measured by methods such as ASTM 7501 Cold Soak Filtration Test (CSFT).

Catalytic purification of fatty acid alkyl esters used in fuels

Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 and 130 and less than 2% in pores having a diameter above 1000. Catalysts prepared from the supports contain Groups 6, 9 and 10 metals or metal compounds, and optionally phosphorus, supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved sulfur and MCR conversion in hydrotreating processes.

A catalyst composition comprising at least about 10% by weight pentasil, at least about 12% by weight Y-type zeolite at a pentasil to Y zeolite ratio of at least 0.25, and wherein the pentasil and Y zeolite comprise at least about thirty-five percent of the catalyst have been shown to optimize light olefin yields and LPG from FCC processes. Embodiments having matrix surface areas greater than 25 m/g, phosphorous and rare earth are preferred. The compositions of this invention are particularly useful in typical fluid catalytic cracking (FCC) processes.

Catalyst for light olefins and LPG in fludized catalytic units

A process for the reduction of NOemissions from a regeneration zone during a fluid catalytic cracking (FCC) process are disclosed. The process comprises contacting a hydrocarbon feedstock with a circulating inventory of an FCC cracking catalyst and a NOreduction composition during an FCC process. The NOreduction composition comprises at least one reduced nitrogen species component having the ability to reduce the content of reduced nitrogen species to molecular nitrogen under reducing or partial burn FCC conditions and at least one NOreduction component having the ability to convert NOto molecular nitrogen under oxidizing or full burn FCC conditions.

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Columbia, MD, United States of America

Meenakshi Sundaram Krishnamoorthy