Toward a Full One-Pass Conversion for the Fischer-Tropsch Synthesis over a Highly Selective Cobalt Catalyst
-
作者
CO3O4 NANOPARTICLES; CO CONVERSION; CO/SIO2
-
刊物名称
Ind. Eng. Chem. Res.
-
年、卷、文献号
2020, 59,
-
关键词
CO3O4 NANOPARTICLES; CO CONVERSION; CO/SIO2
-
摘要
The Fischer-Tropsch synthesis (FTS) has been studied for decades; however, it is very difficult to simultaneously obtain a high one-pass CO conversion and a high selectivity of long-chain (C5+) hydrocarbons. A layered CoMn/TiO2 catalyst is fabricated and used as an efficient catalyst in FTS. The unique layered structure of the CoMn/TiO2 catalyst effectively inhibits the agglomeration of Co nanoparticles and enhances the diffusion of the reactants and products in FTS. The catalyst exhibits superior activity, high C5+ selectivity, and excellent stability due to its unique multiple mesopores structure as well as high cobalt dispersion. Even at a nearly complete one-pass CO conversion (>95%), which is considered to be a very harsh condition in the FTS reaction, CoMn/TiO2 still exhibits a high C5+ hydrocarbon selectivity of around 93% and a very low selectivity of undesired Cl products (CH4 and CO2) of below 4.5%.
