Abstract: A Fischer-Tropsch synthesis process (10) includes feeding gaseous reactants (20) including at least CO, H2 and CO2into a reactor (14) holding an iron-based catalyst. The H2 and CO are fed in a H2:CO molar ratio of at least 2:1 and the CO2 and CO are fed in a CO2:CO molar ratio of at least 0.5:1. The reactor (14) is controlled at an operating temperature in the range from about 260° C. to about 300° C. A liquid product (22) and a gaseous product (24) including hydrocarbons, CO, H2, water and CO2 are withdrawn from the reactor (14).

Abstract: A Fischer-Tropsch synthesis process (10) includes feeding gaseous reactants (20) including at least CO, H2 and C02 into a reactor (14) holding an iron-based catalyst. The H2 and CO are fed in a H2:CO molar ratio of at least 2:1 and the C02 and CO are fed in a C02:CO molar ratio of at least 0.5:1. The reactor (14) is controlled at an operating temperature in the range from about 260° C. to about 300° C. A liquid product (22) and a gaseous product (24) including hydrocarbons, CO, H2, water and C02 are withdrawn from the reactor (14).

Abstract: This invention relates to a high temperature Fischer-Tropsch (HTFT) hydrocarbon synthesis process comprising the conversion of a feed of H2 and at least one carbon oxide to hydrocarbons containing at least 30% on a mass basis hydrocarbons with five or more carbon atoms (hereinafter referred to as C5+ compounds). The conversion is carried out in the presence of an alkali-promoted iron hydrocarbon synthesis catalyst, and the process is characterised therein that the reaction mixture formed during the conversion contains less than 0.02 mol alkali per 100 g iron, and that the H2:carbon oxide molar ratio in the feed of H2 and carbon oxide is at least 2.

Abstract: This invention relates to a hydrocarbon synthesis process comprising the conversion of a feed of H2 and at least one carbon oxide to hydrocarbons containing at least 30% on a mass basis hydrocarbons with five or more carbon atoms. The conversion is carried out in the presence of an alkali-promoted iron hydrocarbon synthesis catalyst and an acidic catalyst suitable for converting hydrocarbons. The reaction mixture formed during the conversion contains less than 0.02 mol alkali per 100 g iron and the H2:carbon oxide molar ration in the feed of H2 and carbon oxide is at least 2.

Abstract: According to the present invention there is provided a hydrocarbon synthesis catalyst comprising a precipitated iron product and a catalyst promotor. The catalyst has a surface area of below 60 m2 per gram of catalyst in the reduced form or below 100 m2 per gram of catalyst in the non-reduced form. According to the invention there is also provided a process for preparing the catalyst and the use thereof in the synthesis of hydrocarbons.

Abstract: According to the present invention there is provided a hydrocarbon synthesis catalyst comprising a precipitated iron product and a catalyst promotor. The catalyst has a surface area of below 60 m2 per gram of catalyst in the reduced form or below 100 m2 per gram of catalyst in the non-reduced form. According to the invention there is also provided a process for preparing the catalyst and the use thereof in the synthesis of hydrocarbons.