FIELD: chemistry.
SUBSTANCE: invention relates to a method for manufacturing a regenerated Fischer-Tropsch synthesis catalyst by regenerating a used catalyst which was previously used in a Fischer-Tropsch synthesis reaction. A method comprises a steaming step of bringing the spent catalyst into contact with a mixed gas comprising 1 to 30% by volume of steam and an inert gas at a pressure of atmospheric pressure to 5 MPa and a temperature of 150 to 350°C. The above spent catalyst being a spent catalyst in which cobalt and/or ruthenium is supported on a carrier comprising silica with an average pore diameter measured by a nitrogen adsorption method of 4 to 25 nm, and of which activity represented by an initial carbon monoxide conversion is 40 to 95%, based on the activity of a corresponding unused catalyst. The invention also relates to a method for producing hydrocarbons using a regenerated FT synthesis catalyst produced by the method.
EFFECT: regenerated FT synthesis catalysts having high activity and high chain propagation probability can be obtained.
5 cl, 1 tbl, 14 ex
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Authors
Dates
2015-04-27—Published
2011-02-14—Filed