Method of making a catalyst by coating cobalt catalyst powder on a metallic foam surface, the cobalt metallic foam catalyst, heat-exchanger typed reactor with the catalyst, and method of liquid oil production in Fischer-Tropsch synthesis using the reactor

摘要

The present invention relates to a method of manufacturing a cobalt metal foam catalyst including a metal foam coated with cobalt catalyst powder, a cobalt metal foam catalyst manufactured by the method, a thermal medium-circulated heat exchanger type reactor using the cobalt metal foam catalyst, and a method of producing liquid fuel by Fischer-Tropsch synthesis using the reactor. An object of the present invention is to provide a catalyst, which is used to obtain high liquid fuel productivity even at a low CO conversion ratio because the reaction temperature can be kept stable by controlling reaction heat with high efficiency in Fischer-Tropsch synthesis so that the mass transfer characteristics of a catalyst layer can be improved, and a method of manufacturing the catalyst, a reactor filled with the catalyst, and a method of producing liquid fuel using the reactor. The method of manufacturing a cobalt metal foam catalyst includes the steps of: surface-pretreating a metal foam by atomic layer deposition (ALD) using trimethylaluminum ((CH 3 ) 3 Al) and water to form an Al 2 O 3 thin film; preparing a cobalt catalyst slurry composed of a mixture of alumina sol, cobalt catalyst powder and isopropyl alcohol; surface-coating the surface-pretreated metal foam with the cobalt catalyst slurry by dip coating; and drying and calcinating the surface-pretreated metal foam coated with the cobalt catalyst slurry.