Petroleum Coke Compositions for Catalytic Gasification
First Claim
1. A particulate composition having a particle distribution size suitable for gasification in a fluidized bed zone, the particulate composition comprising an intimate mixture of (a) a petroleum coke;
- and (b) an alkali metal gasification catalyst which, in the presence of steam and under suitable temperature and pressure, exhibits gasification activity whereby a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, ammonia, and other higher hydrocarbons are formed, wherein;
(i) the alkali metal gasification catalyst comprises a combination of an alkali metal hydroxide with one or more other alkali metal compounds selected from the group consisting of an alkali metal carbonate, alkali metal bicarbonate, alkali metal formate, alkali metal oxalate, alkali metal amide, alkali metal acetate, alkali metal sulfide, alkali metal halide, and alkali metal nitrate;
(ii) the weight ratio of the alkali metal hydroxide to the other alkali metal compounds, in the alkali metal gasification catalyst, ranges from about 0.01 to about 0.5;
(iii) the alkali metal gasification catalyst is present in an amount sufficient to provide, in the particulate composition, a ratio of alkali metal atoms to carbon atoms ranging from about 0.01 to about 0.08; and
(iv) the particulate composition has a moisture content of less than about 6 wt % based on the weight of the particulate composition.
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Abstract
Particulate compositions are described comprising an intimate mixture of a petroleum coke and an alkali metal gasification catalyst, where the alkali metal gasification catalyst comprises a combination of an alkali metal hydroxide and one or more other alkali metal compounds are loaded onto coke for gasification in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products.
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Citations
14 Claims
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1. A particulate composition having a particle distribution size suitable for gasification in a fluidized bed zone, the particulate composition comprising an intimate mixture of (a) a petroleum coke;
- and (b) an alkali metal gasification catalyst which, in the presence of steam and under suitable temperature and pressure, exhibits gasification activity whereby a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, ammonia, and other higher hydrocarbons are formed, wherein;
(i) the alkali metal gasification catalyst comprises a combination of an alkali metal hydroxide with one or more other alkali metal compounds selected from the group consisting of an alkali metal carbonate, alkali metal bicarbonate, alkali metal formate, alkali metal oxalate, alkali metal amide, alkali metal acetate, alkali metal sulfide, alkali metal halide, and alkali metal nitrate; (ii) the weight ratio of the alkali metal hydroxide to the other alkali metal compounds, in the alkali metal gasification catalyst, ranges from about 0.01 to about 0.5; (iii) the alkali metal gasification catalyst is present in an amount sufficient to provide, in the particulate composition, a ratio of alkali metal atoms to carbon atoms ranging from about 0.01 to about 0.08; and (iv) the particulate composition has a moisture content of less than about 6 wt % based on the weight of the particulate composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- and (b) an alkali metal gasification catalyst which, in the presence of steam and under suitable temperature and pressure, exhibits gasification activity whereby a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, ammonia, and other higher hydrocarbons are formed, wherein;
Specification