Intevep, S.a.

M M De Agudelo

Julio H Krasuk

C E Galarraga

Jose M Larrauri Derteano

An improved catalyst for use in the hydrodemetallization and hydroconversion of heavy hydrocarbon feedstocks and method of making same and, more particularly, an improved catalyst having two distinct phases supported on a refractory support wherein the first phase effectively stores metals removed from the feedstock and the second phase exhibits superior catalytic acitivity for hydrogenation when processing heavy hydrocarbon feedstocks.

Catalyst for the simultaneous hydrodemetallization and hydroconversion

A process for regenerating a spent, naturally occurring catalyst characterized by an iron content of about 10 to 70 wt. % as metal comprises contacting the spent catalyst with a mixture of water vapor and air in a water vapor/air ratio of between 1:1 to 20:1 at a flow rate of about 0.1 to 50 l/min., a temperature of about 200.degree. to 700.degree. C., a pressure of about 0.3 to 80 atmospheres for a time of about 0.1 to 20 hours so as to obtain a regenerated catalyst having a crystallinity value of about 1.0 to 6.5.

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Los Teques, Venezuela

M M De Agudelo