Desulfurization of hydrocarbons
First Claim
1. A process comprising (a) contacting a hydrocarbon feedstock containing organo-sulfur compounds with a reduced catalytic absorbent comprising one or more nickel components a molybdenum or tungsten component and one or more platinum group metal promoters composited with a porous refractory oxide, said contacting being under substantially non-hydrogenative conditions including an elevated temperature such that a substantial proportion of said organo-sulfur compounds is removed from said feedstock and said catalytic absorbent increases in sulfur content;
- and (b) recovering a hydrocarbon product stream containing less organo-sulfur compounds than are contained in said feedstock.
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Accused Products
Abstract
A hydrocarbon feedstock containing organo-sulfur compounds, such as a naphtha containing mercaptans, is desulfurized by contact, under non-hydrogenative conditions, with a reduced catalytic absorbent comprising one or more nickel components and one or more platinum group metal promoters composited with a porous refractory oxide.
33 Citations
24 Claims
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1. A process comprising (a) contacting a hydrocarbon feedstock containing organo-sulfur compounds with a reduced catalytic absorbent comprising one or more nickel components a molybdenum or tungsten component and one or more platinum group metal promoters composited with a porous refractory oxide, said contacting being under substantially non-hydrogenative conditions including an elevated temperature such that a substantial proportion of said organo-sulfur compounds is removed from said feedstock and said catalytic absorbent increases in sulfur content;
- and (b) recovering a hydrocarbon product stream containing less organo-sulfur compounds than are contained in said feedstock.
- View Dependent Claims (2, 3, 4, 5, 6, 7)
-
8. A process comprising (a) contacting a reformer feedstock containing mercaptans with a catalytic absorbent comprising between about 5 and 50% by weight of nickel components, calculated as NiO, a molybdenum or tungsten component and one or more platinum group metal promoters composited with a porous refractory oxide, said catalytic absorbent having been reduced by hydrogen at an elevated temperature, said contacting being under substantially non-hydrogenative conditions including a temperature between 100°
- F. and 600°
F. such that a substantial proportion of said mercaptans is removed from said feedstock; and
(b) recovering a product stream containing less mercaptans than are contained in said feedstock. - View Dependent Claims (9, 10, 11)
- F. and 600°
-
12. A process comprising (a) contacting, in the absence of hydrogen and at a temperature in the range of about 200°
- F. to 400°
F., a reformer feedstock containing more than 0.1 ppmw sulfur comprising a substantial proportion of mercaptans with a catalytic absorbent comprising between about 5 and 50 wt.% of nickel components, calculated as NiO, a molybdenum or tungsten component and one or more platinum group metal promoters in an atomic ratio between about 1;
1 to 5000;
1, nickel to platinum group metal, composited with a porous refractory oxide consisting essentially of alumina, said catalytic absorbent having been reduced with hydrogen at a temperature between 500°
F. and 900°
F., such that a substantial proportion of said mercaptans is removed from said feedstock while said catalytic absorbent increases in sulfur content; and
(b) recovering a product stream containing less than about 0.1 ppmw sulfur.
- F. to 400°
-
13. A process comprising (a) contacting a hydrocarbon feedstock containing organo-sulfur compounds with a reduced catalytic absorbent comprising one or more nickel components a molybdenum or tungsten component and one or more platinum or palladium metal promoters, composited with a porous refractory oxide, said contacting being under substantially non-hydrogenative conditions including an elevated temperature such that a substantial proportion of said organo-sulfur compounds is removed from said feedstock and said catalytic absorbent increases in sulfur content;
- and (b) recovering a hydrocarbon product stream containing less organo-sulfur compounds than are contained in said feedstock.
- View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A process comprising (a) contacting a reformer feedstock containing mercaptans with a catalytic absorbent comprising between about 5 and 50% by weight of nickel components calculated as NiO, a molybdenum or tungsten component and one or more platinum metal promoters composited with a porous refractory oxide, said catalytic absorbent having been reduced by hydrogen at an elevated temperature, said contacting being under substantially non-hydrogenative conditions including a temperature between 100°
- F. and 600°
F., such that a substantial proportion of said mercaptans is removed from said feedstock; and
(b) recovering a product stream containing less mercaptans than are contained in said feedstock. - View Dependent Claims (21, 22, 23)
- F. and 600°
-
24. A process comprising (a) contacting, in the absence of hydrogen and at a temperature in the range of about 200°
- F. to 400°
F., a reformer feedstock containing more than 0.1 ppmw sulfur comprising a substantial proportion of mercaptans with a catalytic absorbent comprising between about 5 and 50 wt.% of nickel components calculated as NiO, a molybdenum or tungsten component and one or more platinum metal promoters in an atomic ratio between 1;
1 to 5000;
1, nickel to platinum metal, composited with a porous refractory oxide consisting essentially of alumina, said catalytic absorbent having been reduced with hydrogen at a temperature between 500°
F. and 900°
F., such that a substantial proportion of said mercaptans is removed from said feedstock while said catalytic absorbent increases in sulfur content; and
(b) recovering a product stream containing less than about 0.1 ppmw sulfur.
- F. to 400°
Specification