Catalytic investigation for Fischer–Tropsch synthesis from bio-mass derived syngas

• Published in: Applied catalysis. A, General Vol. 259; no. 2; pp. 221 - 226
• Main Authors: Jun, Ki-Won, Roh, Hyun-Seog, Kim, Kyong-Su, Ryu, Jae-Seong, Lee, Kyu-Wan
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.03.2004; Elsevier
• Subjects: Bio-syngas; Catalysis; Catalyst; Chemistry; CO 2; Exact sciences and technology; Fischer–Tropsch; General and physical chemistry; Hydrocarbons; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Fischer–Tropsch; Hydrocarbons; CO 2; Bio-syngas; Catalyst; Composition; Catalytic reaction; Deactivation; Hydrocarbon; Carbon dioxide; Fixed bed reactor; Fischer Tropsch synthesis; CO2; Selectivity; Biomass; Synthesis gas; Silica; Optimization; Promoter; Olefin; Fischer-Tropsch; Model reaction; Models; Alumina
• ISSN: 0926-860X; 1873-3875
• DOI: 10.1016/j.apcata.2003.09.034

Hydrocarbon synthesis from biomass-derived syngas (bio-syngas) has been investigated as a potential way to use biomass. The Fischer–Tropsch reaction has been carried out using CO/CO 2/H 2/Ar (11/32/52/5 vol.%) mixture as a model for bio-syngas on co-precipitated Fe/Cu/K, Fe/Cu/Si/K and Fe/Cu/Al/K catalysts in a fixed bed reactor. The reaction with the model bio-syngas showed that only CO was converted to hydrocarbons while, in the reaction with a balanced (i.e. H 2-enriched) feed gas, CO 2 was converted to hydrocarbons as well as CO. In the optimization of the catalyst composition that employed bio-syngas, alumina as a structural promoter gave much higher activity for hydrocarbon production than silica. K addition promoted the catalytic activity and the selectivities toward olefins and long-chain hydrocarbons, but too high K promotion caused the gradual deactivation of the catalysts. Some performances of the catalysts that depended on the syngas composition are also presented.