Patents by Inventor Arthur Warren Chester

Arthur Warren Chester has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Catalytic cracking process using a modified mesoporous aluminophosphate material
    Patent number: 6797155
    Abstract: A process for catalytic cracking of a hydrocarbon feedstock comprises contacting the feedstock with a catalyst composition comprising a primary cracking component, such as zeolite Y, and a mesoporous aluminophosphate material which includes a solid aluminophosphate composition modified with at least one element selected from zirconium, cerium, lanthanum, manganese, cobalt, zinc, and vanadium. The mesoporous aluminophosphate material has a specific surface area of at least 100 m2/g, an average pore size less than or equal to 100 Å, and a pore size distribution such that at least 50% of the pores have a pore diameter less than 100 Å.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: September 28, 2004
    Assignee: ExxonMobil Research & Engineering Co.
    Inventors: Arthur Warren Chester, Frederick Earl Daugherty, Anthony Shiu lun Fung, Charles Theodore Kresge, Hye Kyung Cho Timken, James Clarke Vartuli, Ranjit Kumar, Terry G. Roberie, Michael S. Ziebarth
  • Metal passivation for anode grade petroleum coke
    Patent number: 6251307
    Abstract: The present invention relates to the use of petroleum coke for the manufacture of carbonaceous anodes for the aluminum smelting industry. The inclusion of Group 4 and/or Group 13 metal compounds as additives to the petroleum coker feedstock diminish the oxidizing tendencies of the metal impurities inherent in the petroleum coke.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: June 26, 2001
    Assignee: Mobil Oil Corporation
    Inventors: Steven Matthew LeCours, Arthur Warren Chester, Gary Lester Smith
  • Metal passivation for anode grade petroleum coke
    Patent number: 6024863
    Abstract: The present invention relates to the use of petroleum coke for the manufacture of carbonaceous anodes for the aluminum smelting industry. The inclusion of Group 4 and/or Group 13 metal compounds as additives to the petroleum coker feedstock diminish the oxidizing tendencies of the metal impurities inherent in the petroleum coke.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: February 15, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Steven Matthew LeCours, Arthur Warren Chester, Gary Lester Smith
  • Process for cracking hydrocarbons
    Patent number: 4107032
    Abstract: In a fluid catalytic cracking process for cracking hydrocarbons with a zeolitic cracking catalyst and in the absence of added hydrogen, the desired value of CO.sub.2 /CO in the flue gases from the regenerator is achieved by including in the catalyst a combustion-promoter metal such as platinum, palladium, rhodium, ruthenium, iridium, osmium or rhenium, and, additionally, contacting the catalyst with a metal-free chlorine or bromine compound.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: August 15, 1978
    Assignee: Mobil Oil Corporation
    Inventor: Arthur Warren Chester