Fischer−Tropsch Synthesis over Cobalt Catalysts Supported on Mesoporous Metallo-silicates

Abstract

Fischer−Tropsch synthesis was carried out in slurry phase over cobalt-based catalysts supported on mesoporous metallo-silicates prepared by the rapid room-temperature synthesis method. The incorporation of Al and Ti into the silica framework was confirmed by NMR, FT-IR, and UV. Although the catalyst supported on mesoporous silica (MPS) was deactivated during the reaction, the catalysts supported on mesoporous Al- and Ti-silicates (MPAS and MPTS) showed high and stable activity. The selectivity for higher hydrocarbons (α) increased with the amount of tetrahedral Al incorporated into the silica framework.

Effects of Ru Precursors on Activity of Ru-SiO₂ Catalysts Prepared by Alkoxide Method in Fischer-Tropsch Synthesis

“…The C11+ hydrocarbons in the slurry were determined separately by gas chromatography after the reaction. The procedure was described in detail previously 10) .…”

Effects of Pore Size of Ru-Al₂O₃ Catalysts Prepared by Alkoxide Method on Fischer-Tropsch Reaction

“…After stirring at 337 K for 4 h, dispared by impregnation suggests that catalysts supported tilled water diluted with butanol (2. reactor (CSTR; V＝ca.100 cm 3 ) with a specially designed stirring rod 10) to achieve complete mixing in the reactor. The reaction conditions were as follows: H2/ CO＝2/1, T＝503 K, P＝1 MPa, and W/F＝5-10 gcatal.h/mol.…”

Novel Preparation and Magneto Chemical Characterization of Nano-Particle Mixed Alcohol Catalysts

“…The state of the unfilled d-shells and unpaired electrons, morphology and metallic charge distribution of the transition metal (Fe, Co) catalysts are known to govern both their catalytic and magnetic behavior [5]. Mesoporous materials (silica or alumina) are used as the support for the FT catalysts [6], and incorporated transition metals (iron and cobalt) into the mesoporous material framework. Here, we study the structure and composition of novel Co/Fe nanoparticle syngas conversion catalyst granules prepared using sol-gel/oil-drop methods [7,8] by incorporating metal oxide nanoparticles into alumina sol-gel matrix.…”