Process for refractory compound conversion in a hydrocracker rec

Details Process for refractory compound conversion in a hydrocracker rec Process for refractory compound conversion in a hydrocracker rec

1990-03-26

1991-04-16

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 58, 208 99, 208100, 208102, 208111, 208112, C10G 6510

Patent

active

050079980

ABSTRACT:
A catalytic hydrocracking process which minimizes the fouling of the process unit with 11.sup.+ ring heavy polynuclear aromatic compounds by means of hydrogenating and converting at least a portion of the recycle hydrocarbon liquid containing trace quantities of 11.sup.+ ring heavy polynuclear aromatic compounds in a 11.sup.+ ring heavy polynuclear aromatic compound conversion zone containing a zeolite hydrogenation catalyst having pore openings in the range from about 8 to about 15 Angstroms, a hydrogenation component and an intercalated clay component at hydrogenation conditions to selectively reduce the concentration of 11.sup.+ ring heavy polynuclear aromatic compounds.

REFERENCES:
patent: 3891539 (1975-06-01), Nelson et al.
patent: 4457831 (1984-07-01), Gendler
patent: 4618412 (1986-10-01), Hudson et al.
patent: 4921595 (1990-05-01), Gruia

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