Iron and cobalt based fischer-tropsch pre-catalysts and catalysts
First Claim
1. A process for preparing an iron or cobalt based pre-catalyst consisting essentially of(a) reacting a metal salt selected from the group consisting of a solid iron salt and a solid cobalt salt with a solid base in the presence of a solid textural promoter, with no solvent added to produce a cobalt or iron oxide nanoparticle catalyst precursor in the pores of said textural promoter;
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Abstract
A method of making iron and cobalt pre-catalysts and catalysts in activated, finished form suitable for use in Fischer-Tropsch synthesis. The pre-catalysts are prepared by mixing an iron or cobalt salt, a base, and a metal oxide textural promoter or support. The reaction is carried out in a solvent deficient environment. The resulting product is then calcined at temperatures of about 300-500° C. to produce a metal oxide. The catalysts are prepared by reducing the metal oxide in the presence of hydrogen at temperatures of about 300-500° C. and carbiding the reduced metal in the case of iron.
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Citations
21 Claims
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1. A process for preparing an iron or cobalt based pre-catalyst consisting essentially of
(a) reacting a metal salt selected from the group consisting of a solid iron salt and a solid cobalt salt with a solid base in the presence of a solid textural promoter, with no solvent added to produce a cobalt or iron oxide nanoparticle catalyst precursor in the pores of said textural promoter; - and
(b) calcining the product of step (a) to produce an iron or cobalt based pre-catalyst. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A process for preparing an iron or cobalt based pre-catalyst consisting essentially of:
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(a) reacting a solid metal salt selected from the group consisting of an iron salt or a cobalt salt with a solid base, with no solvent added to produce a nanoparticle iron or cobalt oxide catalyst precursor; (b) adding a solid textural promoter to the product of step (a) to produce a pre-catalyst, and (c) calcining the product of step (b).
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Specification