naa a22 4500 510819893 CHVBK 20180411083526.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11814-013-0177-6 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0177-6 Catalytic synthesis of biodiesel from pongamia glabra over zirconia and its modified forms [Elektronische Daten] [Manjunatha Shyamsundar, Sathgatta Shamshuddin, Jaya Sahu] Zirconia & its modified forms such as Mo(VI)/ZrO2, Pt-SO 4 2− /ZrO2, MgO & MgO-ZrO2 mixed oxide were prepared by impregnation method. These catalysts were analyzed for surface acidity, surface basicity and crystallinity by using techniques such as TPD & powder X-ray diffraction. Mo(VI)/ZrO2, Pt-SO4 2−/ZrO2 were used as solid acid catalysts for esterification of pongamia glabra (karanja) oil to reduce the concentration of free fatty acid and MgO and MgO-ZrO2 mixed oxide were used as solid base catalysts for transesterification of karanja oil to produce biodiesel. These zirconia catalysts were found to be highly efficient for the synthesis of biodiesel with more than 90% yield of biodiesel. These solid catalysts can be effectively reactivated and reused. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Mo(VI)/ZrO2 nationallicence Pt-SO 4 2− /ZrO2 nationallicence MgO nationallicence MgO-ZrO2 nationallicence Transesterification nationallicence Biodiesel nationallicence Karanja Oil nationallicence Pongamia Glabra nationallicence Shyamsundar Manjunatha Chemistry Research Laboratory, HMS Institute of Technology, NH-4, Kyathsandra, 572 104, Tumkur, Karnataka, India aut Shamshuddin Sathgatta Chemistry Research Laboratory, HMS Institute of Technology, NH-4, Kyathsandra, 572 104, Tumkur, Karnataka, India aut Sahu Jaya Department of Chemical Engineering, University of Malaya, Kualalampur, Malaysia aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/12(2013-12-01), 2186-2190 0256-1115 30:12<2186 2013 30 11814 https://doi.org/10.1007/s11814-013-0177-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0177-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shyamsundar Manjunatha Chemistry Research Laboratory, HMS Institute of Technology, NH-4, Kyathsandra, 572 104, Tumkur, Karnataka, India aut NATIONALLICENCE 700 1- Shamshuddin Sathgatta Chemistry Research Laboratory, HMS Institute of Technology, NH-4, Kyathsandra, 572 104, Tumkur, Karnataka, India aut NATIONALLICENCE 700 1- Sahu Jaya Department of Chemical Engineering, University of Malaya, Kualalampur, Malaysia aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/12(2013-12-01), 2186-2190 0256-1115 30:12<2186 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer