Simultaneous hydrotreating and dewaxing of petroleum feedstocks
AssigneeMobil Oil Corporation
InventorsPhilip J. Angevine, Yung F. Chu, Kenneth M. Mitchell, Stephen M. Oleck, Stuart S. Shih, Robert C. Wilson, Jr., deceased
Life of this patent
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Abstract
A process for simultaneously hydrotreating and dewaxing petroleum fractions is described. The process utilizes a single catalyst system which includes a hydrotreating component impregnated on a controlled pore size base and at least two catalyst components selected from any of an intermediate pore zeolite, a large pore zeolite or Zeolite Beta, and a large pore non-zeolite catalyst.
Claims13
A process comprising the steps of simultaneous demetallating, hydrodesulfurizing and dewaxing petroleum residua at least 50% of which boils above 750.degree. F. by contacting said residua with a catalyst, comprising:
- (a) a hydrogenation/dehydrogenation component supported on catalytically active alumina, said alumina having a controlled pore size whereby said catalyst has 75% of its pore volume in pores no greater than 100 Angstrom units in diameter, and about 20% of its pore volume in pores greater than about 300 Angstrom units in diameter;
- and
- (b) an intermediate pore zeolite, and zeolite beta as a large pore component and a large pore non-zeolitic inorganic binder.
Dependencies are inferred from the claim text.