title: Hydroconversion of n-dodecane over nanoporous catalysts.
abstract: Platinum catalysts impregnated on different nanoporous materials, Meso-MFI, Si-SBA-15 and AI-SBA-15, were synthesized, and the hydroconversion of n-dodecane over these catalysts was performed. The catalytic characteristics were analyzed by Brunauer-Emmett-Teller surface area, X-ray diffraction, N2-adsorption-desorption and temperature programmed desorption of NH3. The effects of operation parameters, such as temperature and pressure, on the catalytic activities were investigated. The catalytic activities were affected considerably by the acidic properties of the catalysts, temperature and pressure. Higher acidity, high temperature and low hydrogen pressure resulted in higher hydroconversion and facilitated hydrocracking. The weak acidity, low temperature and high hydrogen pressure resulted in lower hydroconversion and higher selectivity to i-dodecane.
authors: Graduate School of Energy and Environmental Engineering, University of Seoul, Seoul 130-743, Korea.
authors: Young-Kwon
authors: YK
authors: Park
authors: Hyung Won
authors: HW
authors: Lee
authors: Jong-Ki
authors: JK
authors: Jeon
authors: Jeongsik
authors: J
authors: Han
authors: Chul-Ung
authors: CU
authors: Kim
authors: Soon-Yong
authors: SY
authors: Jeong
authors: Kwang-Eun
authors: KE
authors: Jeong
mesh_terms: D000473:Alkanes / Q000737:chemistry*; D002384:Catalysis; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D016062:Porosity; D013499:Surface Properties; D014867:Water / Q000737:chemistry*
chemical_list: D000473:Alkanes; D014867:Water; C007548:n-dodecane