Synthesis and Characterization of Silica-Alumina Supported Ca and Ni Catalyst for Deoxygenation of Vegetable Oil into Diesel

Developing an environmentally friendly and high-quality of fuel from vegetable oil (triglycerides) have attracted a great attention among the researches. Deoxygenation reaction using Ca-based catalyst is a potentially promising element for removing an oxygen species from organic compounds and converting the molecule to hydrocarbon. Addition of transition metal in the catalysis synthesis studies not only could enhance the properties of the catalyst but also could tune the selectivity toward desired product. Cooperation of mesoporous support such as silica alumina (SA) exhibit unique and excellent properties (high surface area, high porosity) which simultaneously could increase the catalyst activity. In the present studies, a set of bifunctional acid-base supported on the highly mesoporous SA doped with Ca and Ni were synthesized. The Ca (NO)3 and Ni (NO)3 were impregnated on the mesoporous SA support and were calcined at 500 °C for 2 h in order to activate the synthesized catalyst. The physicochemical properties of the catalyst were characterized by X-Ray fluorescence spectroscopy (XRF), X-Ray diffraction spectroscopy (XRD), temperature programme desorption carbon dioxide (TPD-CO2) and temperature programme desorption ammonia (TPD-NH3) and scanning electron microscopy (SEM).

[1]  Y. Taufiq-Yap,et al.  Synthesis of clamshell derived Ca(OH)2 nano-particles via simple surfactant-hydration treatment , 2015 .

[2]  O. Saber,et al.  Optimization of silica content in alumina-silica nanocomposites to achieve high catalytic dehydrogenation activity of supported Pt catalyst , 2014 .

[3]  K. Muthukumar,et al.  Catalytic cracking of vegetable oil with metal oxides for biofuel production , 2014 .

[4]  Mohd Zobir Hussein,et al.  Transesterification of jatropha oil with methanol over Mg-Zn mixed metal oxide catalysts , 2013 .

[5]  E. Santillan‐Jimenez,et al.  Catalytic deoxygenation of triglycerides to hydrocarbons over supported nickel catalysts , 2012 .

[6]  D. Kubička,et al.  The role of alumina support in the deoxygenation of rapeseed oil over NiMo–alumina catalysts , 2011 .

[7]  Jeong-Geol Na,et al.  The effect of calcination temperature on the performance of Ni/MgO–Al2O3 catalysts for decarboxylation of oleic acid , 2011 .

[8]  Mingchuan Zhang,et al.  Deoxygenation of Bio-oil during Pyrolysis of Biomass in the Presence of CaO in a Fluidized-Bed Reactor , 2010 .

[9]  Yujun Wang,et al.  Transesterification of soybean oil to biodiesel using CaO as a solid base catalyst , 2008 .

[10]  J. M. Arandes,et al.  Enhancement of pyrolysis gasoline hydrogenation over Pd-promoted Ni/SiO2–Al2O3 catalysts , 2007 .

[11]  H. Yoshida,et al.  Active sites in sol–gel prepared silica-alumina for photoinduced non-oxidative methane coupling , 2002 .