1
Bob Ware
Ralph M Dessau, David H Olson, Robert A Ware, Sadi Mizrahi: Fluid bed process for para-xylene production. Mobil Oil Corporation, Peter W Roberts, Malcolm D Keen, August 17, 1999: US05939597 (35 worldwide citation)

Para-xylene is produced by toluene methylation by charging toluene and a methylating agent to a fluidized bed of catalyst at a rate sufficient to maintain the fluidized bed in a turbulent sub-transport flow regime, reacting the toluene with the methylating agent, and recovering para-xylene from the ...


2
Bob Ware
Robert P L Absil, James R Katzer, Daria N Lissy, Robert A Ware, Stephen S Wong: Hydrocracking process using small crystal size zeolite Y. Mobil Oil Corporation, Peter W Roberts, April 15, 1997: US05620590 (22 worldwide citation)

There is provided a process and a catalyst for hydrocracking hydrocarbons, such as gas oils. The catalyst comprises a hydrogenating metal and small crystal size zeolite Y. The zeolite Y may have a crystal size of less than one micron. Examples of hydrogenating metals include nickel and tungsten.


3
Clarence D Chang, Jane C Cheng, Terry E Helton, Michael A Steckel, Scott A Stevenson: Hydroalkylation of aromatic hydrocarbons. Mobil Oil Corporation, Peter W Roberts, Malcolm D Keen, March 14, 2000: US06037513 (113 worldwide citation)

There is described a process and a catalyst for the hydroalkylation of an aromatic hydrocarbon, particularly benzene, wherein the catalyst comprises a first metal having hydrogenation activity and a crystalline inorganic oxide material having a X-ray diffraction pattern including the following d-spa ...


4
David C Calabro, Jane C Cheng, Robert A Crane Jr, Charles T Kresge, Sandeep S Dhingra, Michael A Steckel, David L Stern, Simon C Weston: Synthetic porous crystalline MCM-68, its synthesis and use. Mobil Corporation, Peter W Roberts, Malcolm D Keen, April 11, 2000: US06049018 (64 worldwide citation)

This invention relates to a new synthetic porous crystalline material, designated MCM-68, a method and novel polycyclic organic cation for its preparation and its use in catalytic conversion of organic compounds. The new crystalline material exhibits a distinctive X-ray diffraction pattern and has a ...


5
Jeffrey S Beck, Ralph M Dessau, David H Olson: Method of preparation of ex situ selectivated zeolite catalysts for aromatic alkylation applications. Mobil Oil Corporation, Malcolm D Keen, Peter W Roberts, October 7, 1997: US05675047 (58 worldwide citation)

The present invention is a method of producing an ex situ selectivated catalytic molecular sieve for shape selective aromatic alkylation in which a catalytic molecular sieve having a reduced activity is modified by being exposed to at least two selectivation sequences, each sequence includes contact ...


6
Stephen Harold Brown, Larry A Green, Mark Fischer Mathias, David H Olson, Robert Adams Ware, William A Weber: Catalyst and process for converting methanol to hydrocarbons. Mobil Oil Corporation, Peter W Roberts, Malcolm D Keen, April 11, 2000: US06048816 (41 worldwide citation)

There is provided a catalyst and a process for converting methanol or dimethyl ether to a product containing C.sub.2 to C.sub.4 olefins. The catalyst comprises a porous crystalline material having a Diffusion Parameter for 2,2-dimethylbutane of about 0.1-20 sec.sup.-1 when measured at a temperature ...


7
James H Beech Jr, Stuart Damon Hellring, Terry Eugene Helton, Timothy Frederick Kinn, Sadi Mizrahi, Norman J Rouleau: Process for converting C.sub.9 + aromatic hydrocarbons to lighter aromatic products by transalkylation in the prescence of two zeolite-containing catalysts. Mobile Oil Corporation, Peter W Roberts, Malcolm D Keen, August 24, 1999: US05942651 (39 worldwide citation)

A process for converting a heavy aromatics feed to lighter aromatic products, such as benzene and xylene, by reacting C.sub.9+ aromatic hydrocarbons and toluene or benzene under transalkylation reaction conditions, over a first catalyst composition including a zeolite having a constraint index rangi ...


8
Robert P L Absil, George H Hatzikos: Hydrocarbon conversion process using zeolite Beta catalyst. Mobil Oil Corporation, Peter W Roberts, Malcolm D Keen, November 10, 1998: US05833840 (37 worldwide citation)

A catalyst composition which comprises a crystalline metallosilicate having the structure of zeolite Beta, phosphorus and a matrix that is substantially free of crystalline aluminum phosphate which has improved resistance to steam deactivation at which has higher cracking activity than analogous cat ...


9
Nick A Collins, Dominick N Mazzone, Chaya R Venkat: Alkylaromatics production. Mobil Oil Corporation, Peter W Roberts, Malcolm D Keen, May 11, 1999: US05902917 (32 worldwide citation)

There is provided a process for producing alkylaromatics, especially ethylbenzene and cumene, wherein a feedstock is first fed to a transalkylation zone and the entire effluent from the transalkylation zone is then cascaded directly into an alkylation zone along with an olefin alkylating agent, espe ...


10
Clarence D Chang, Cynthia T W Chu, Thomas F Degnan, Paul G Rodewald, David S Shihabi: Extrusion-modified molecular sieve. Mobil Oil Corporation, Ronald A Bleeker, Malcolm D Keen, Peter W Roberts, July 30, 1996: US05541146 (32 worldwide citation)

A catalytic molecular sieve which has been preselectivated by agglomerating with an organosilicon compound. The invention also includes a method for agglomeration-preselectivation and the shape selective catalyst which results from the agglomeration preselectivation.