Process for the catalytic conversion of micro carbon residue content of heavy hydrocarbon feedstocks and a low surface area catalyst composition for use therein
AssigneeShell Oil Company
InventorsJosiane Marie-Rose GINSTRA, David Edward SHERWOOD, David Andrew KOMAR
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Abstract
An improved process for the hydroconversion of micro carbon residue content of heavy hydrocarbon feedstocks by the use of a catalyst composition that is especially useful in the conversion of micro carbon residue of such feedstocks. The catalyst composition is a low surface area composition that further has a specifically define pore structure the combination of which provides for its enhance micro carbon residue conversion property.
Claims16
A process for converting at least a portion of an MCR content of a heavy hydrocarbon feedstock to yield a product having a reduced MCR content, wherein said process includes contacting said heavy hydrocarbon feedstock with a catalyst under MCR conversion process conditions and yielding said product, wherein the improvement comprises:
- enhancing the conversion of said MCR content of said heavy hydrocarbon feedstock by using as said catalyst in said process a calcined particulate of a co-mulled mixture comprising a molybdenum component, a nickel component, pseudo-boehmite powder, and a mineral acid, wherein said calcined particulate is prepared under conditions so that it has specifically defined physical properties including:
- (a) a total surface area of greater than 160 m2/g and less than 240 m2/g;
- (b) a median pore diameter (measured by mercury intrusion) in the range of from 85 Å to 120 Å;
- (c) from 5% to 30% of the total pore volume of said calcined particulate in the macropores having a pore diameter of 250 Å or greater;
- and (d) no more than 60% of the total pore volume of said calcined particulate within its pores having a diameter in the range of from 55 Å to 115 Å.
A catalyst suitable for use in the catalytic conversion of an MCR content of a heavy hydrocarbon feedstock, wherein said catalyst comprises:
- a calcined particulate of a co-mulled mixture, wherein said co-mulled mixture comprises a molybdenum component, a nickel component, pseudo-boehmite powder, and a mineral acid, and wherein said calcined particulate is prepared under conditions so that it has specifically defined physical properties including:
- (a) a total surface area of greater than 160 m2/g and less than 240 m2/g;
- (b) a median pore diameter in the range of from 85 Å to 120 Å;
- (c) from 5% to 30% of the total pore volume of said calcined particulate in the macropores having a pore diameter of 250 Å or greater;
- and (d) no more than 60% of the total pore volume of said calcined particulate within its pores having a diameter in the range of from 55 Å to 115 Å.
Dependencies are inferred from the claim text.