Catalyst and process for hydroconversion of a heavy feedstock
AssigneeShell Oil Company
InventorsJohn George Kester, David Andrew Komar, David Edward Sherwood
Life of this patent
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Abstract
A hydroconversion catalyst comprising a Group VIB metal component, a Group VIII metal component and a carrier material is disclosed wherein the catalyst has a total pore volume of 0.5 to 0.9 cc/g; and a pore volume distribution such that greater than 60% of pore volume are in pores present as micropores of diameter between 55 and 115 Å, less than 0.12 cc/g of pore volume are in pores present at pores of diameter greater than 160 Å and greater than 5% of the total pore volume is in pores of diameter greater than 210 Å.
Claims12
A hydroprocessing catalyst for treating heavy hydrocarbon feedstocks, wherein said catalyst comprises:
- a calcined particle comprising a co-mulled mixture made by co-mulling inorganic oxide powder or powders, solution or solutions containing molybdenum and Group VIII metals and optionally water, acid and flocculating agent, and then forming said co-mulled mixture into a particle that is calcined to thereby provide said calcined particle, said calcined particles having:
- a total pore volume of 0.5 to 0.9 cc/g;
- and a pore volume distribution such that greater than 60% of pore volume are in pores present as micropores of diameter between 55 and 115 Å, less than 0.12 cc/g of pore volume are in pores present at pores of diameter greater than 160 Å and greater than 5% of the total pore volume in pores of diameter greater than 210 Å.
A method of making a highly stable heavy hydrocarbon hydrodesulfurization, metal removal and pitch conversion catalyst, wherein said method comprises:
- a. forming a co-mulled mixture by co-mulling solid inorganic oxide powders, solution or solutions containing molybdenum and Group VIII metals and optionally water, acid and flocculating agent;
- b. extruding said co-mulled mixture into particles to form a shape comprising a first end, a second end and a wall disposed between said ends, said wall comprising 3 or 4 lobes formed in the length of the wall wherein each lobe;
- and
- c. calcining said particles at temperatures such that greater than 60% of pore volume are in pores present as micropores of diameter between 55 and 115 Å, less than 0.12 cc/g of pore volume are in pores present at pores of diameter greater than 160 Å greater than 5% of the total pore volume is in pores of diameter greater than 210 Å;
- and
- d. wherein said calcined particle has a shape comprising a first end, a second end and a wall disposed between said ends, said wall comprising 3 or 4 lobes formed in the length of the wall, wherein each calcined particle has an outer circle diameter of DO, an inner circle diameter of DI, and a height of H;
- the ratio of DO to DI is between about 1.5 to 3.0;
- the ratio of H to DO is between about 1 to about 4;
- and the outer circle diameter DO is between about 0.75 and 2 millimeters.
Dependencies are inferred from the claim text.