ABSTRACT
Fischer-Tropsch synthesis (FTS) is a process for hydrocarbon production from carbon monoxide and hydrogen. This process plays an important role in alleviating the depletion of oil resources in the near future. Cobalt-supported catalysts have been proven to be the most suitable for higher hydrocarbon production achieving high yields in FTS.1,2 Owing to their well-defined ordered mesopores, high surface
9.1 Introduction ................................................................................................... 151 9.2 Experimental ................................................................................................ 153
9.2.1 Preparation of Support and Catalysts ............................................... 153 9.2.2 Characterization of Supports and Catalysts ..................................... 153 9.2.3 FTS ................................................................................................... 154
9.3 Results and Discussion ................................................................................. 154 9.3.1 N2 Physisorption ............................................................................... 154 9.3.2 X-Ray Diffraction ............................................................................. 155 9.3.3 Transmission Electron Microscope .................................................. 156 9.3.4 Temperature-Programmed Reduction .............................................. 159 9.3.5 Hydrogen Temperature-Programmed Desorption ............................ 160 9.3.6 Catalytic Properties of Catalysts in FTS .......................................... 160
9.4 Conclusions ................................................................................................... 161 Acknowledgments .................................................................................................. 163 References .............................................................................................................. 163
areas, narrow pore size distributions and large pore volume, and highly ordered mesoporous silica such as Santa Barbara amorphous (SBA-15),3,4 mobile crystalline materials (MCM-41),5 and hexagonal mesoporous silica (HMS)6,7 have attracted great interest as supports in FTS, especially with SBA-15; the physicochemical properties of these mesostructured supports help in attaining higher activity than commercial silica.
