Advances in Fischer-Tropsch Synthesis Using Zeolite-Added Catalysts; 제올라이트 기반 Fischer-Tropsch 촉매 연구 동향

초록

Fischer–Tropsch (FT) synthesis converts CO and H<inf>2</inf> into hydrocarbons, including liquid fuels and olefins. This process has recently gained significant attention due to the growing demand for alternative fuels in pursuit of carbon neutrality. To efficiently produce liquid fuels, various catalysts have been investigated, among which zeolites are known to enhance catalytic performance through their unique pore structures and acid sites. The product distribution is governed by the pore characteristics of the zeolite. For instance, microporous zeolites with pore sizes of 2 nm or less provide shape selectivity that enables the formation of branched hydrocarbons in the gasoline range, but they suffer from mass-transfer limitations. To address this issue, strategies introducing mesopores of 2–50 nm into zeolites have emerged; mesoporous and hierarchical zeolites improve mass transfer, thereby further enhancing catalytic performance and process efficiency. Accordingly, this review surveys research trends in zeolite-based FT catalysts, analyzing the roles of zeolites as supports. It also details, through numerous case studies, how factors such as Si/Al ratio, synthesis method, and metal loading influence FT product selectivity, and proposes directions for future research. © 2025 Korean Institute of Chemical Engineers. All rights reserved.

키워드