Patent ID: 9018128
Filing Date: 2015-04-28
Classification: B01J,C10G

Abstract:
1. A structurally promoted precipitated Fischer-Tropsch catalyst for use in a slurry bed Fischer-Tropsch reactor, the structurally promoted precipitated Fischer-Tropsch catalyst comprising: crystalline silica; at least one chemical promoter selected from the group consisting of alkali metals; and iron; wherein the structurally promoted precipitated Fischer-Tropsch catalyst comprises a homogeneous distribution of iron and alkali metal due to production of the structurally promoted precipitated Fischer-Tropsch catalyst via impregnation of a precipitated iron catalyst with an alkali-silicate support solution consisting essentially of: crystalline silica dissolved in an aqueous solution comprising at least one chemical promoter selected from the group consisting of alkali metal bases, wherein the alkali-silicate support solution comprises no significant concentration of salt, wherein the main catalytic phase of the structurally promoted precipitated Fischer-Tropsch catalyst is selected from the group consisting of maghemite and hematite, and wherein the structurally promoted precipitated Fischer-Tropsch catalyst has a main reduction peak temperature, as determined by TPR, of less than 272° C.