Methods for preparation and use of liquid synthesis catalysts
OwnerFrederick M. MacDonnell, Brian H. Dennisinventors
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Abstract
Described herein are catalysts relating to liquid synthesis, methods of their preparation, and methods of their use. In an embodiment according to the present disclosure, a method of producing a catalyst for liquid synthesis comprises: providing a silica oxide support; pretreating the silica oxide support to remove air and moisture; impregnating the pretreated silica oxide support with cobalt from a cobalt source using a cobalt impregnation method; and calcinating the impregnated silica oxide support in an oven with a temperature ramping profile, wherein the calcinating comprises feeding air into the oven.
Claims5
A method of using a liquid synthesis catalyst, comprising:
- impregnating a silica oxide support with cobalt;
- drying the impregnated silica oxide support with an inert gas at a temperature of about 90° C. to about 130° C.;
- after drying with the inert gas, calcinating the impregnated silica oxide support in the presence of oxygen to produce a liquid synthesis catalyst;
- positioning the liquid synthesis catalyst in a reactor;
- bedding and packing the liquid synthesis catalyst in the reactor;
- reducing the liquid synthesis catalyst with H2 gas;
- cooling the reactor to about 110° C. to about 160° C. while purging with H2 gas and increasing the reactor pressure to a set pressure point;
- activating the liquid synthesis catalyst by introducing a gas stream into the reactor, wherein the gas stream comprises H2 gas and CO from a CO source at a molar ratio of 2:1 H2 to CO;
- and
- collecting the reaction products in a reaction vessel.
Dependencies are inferred from the claim text.