Back to results
US 4,002,557 AGranted
Catalytic conversion of high metals feed stocks
AssigneeMobil Oil Corporation
InventorsHartley Owen, Paul B. Venuto
Life of this patent
Estimating the term…
Abstract
The conversion of high metals containing feed stock is accomplished in the presence of a low molecular weight carbon-hydrogen fragment contributing material and an acid function crystalline zeolite catalyst to produce gasoline of high quality and yields superior to that obtained heretofore.
Claims6
A method for converting residual hydrocarbons comprising greater than 1 ppm of nickel and vanadium as metal contaminants which comprises,
- mixing said metal contaminated residual hydrocarbons with at least 25 wt. percent of low molecular weight carbon hydrogen fragment contributing material of less than 5 carbon atoms and contacting the mixture with a crystalline zeolite cracking catalyst of a pore size opening within the range of 4 to 15 Angstroms under conditions providing a contact mix temperature within the range of 800.degree. F. to 1200.degree. F.,
- providing a hydrocarbon residence time in contact with said catalyst within the range of 0.5 to 10 seconds and recovering a product of said conversion operation comprising improved yields of isobutane and aromatic gasoline than obtained in the absence of said carbon hydrogen fragment contributor.
Dependencies are inferred from the claim text.