Ayodele, O.B. and Farouk, H.U. and Mohammed, J. and Uemura, Y. and Daud, W.M.A.W. (2015) Effect of precursor acidity on zeolite supported Pd catalyst properties and hydrodeoxygenation activity for the production of biofuel. Journal of Molecular Catalysis a-Chemical, 400. pp. 179-186. ISSN 1381-1169, DOI https://doi.org/10.1016/j.molcata.2015.01.033.
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Abstract
In this study, two different zeolite (ZLT) supported palladium catalysts (Pd/Zs) of varying acidity were synthesized, characterized and tested for biofuel production. The first Pd/Z was synthesized via the incorporation of palladium oxalate complex (PdOxC) prepared from the functionalization of H2PdCl4 with oxalic acid at pH 5.3 into ZLT. The PdOxC was further modified with drops of HF until pH 3.7 and incorporated into ZLT to synthesize zeolite supported fluoride ion modified PdOxC catalyst (FPd/Z). Their characterization results showed that there is considerable crystallinity loss in Pd/Z, while FPd/Z showed drastic crystallinity loss according to the SEM and XRD results. In addition, the specific surface area and porosity of ZLT increased from 202 m(2)/g and 0.13 cm(3)/g to 371 m(2)/g and 0.23 cm(3)/g in Pd/Z, and 427 m(2)/g and 0.29 cm(3)/g in FPd/Z catalysts, respectively. Pd/Z catalyst produces 56 n-C18H38 and 11 iso-C18H38, while FPd/Z produces 58 n-C18H38 and 28 iso-C18H38 in the hydrodeoxygenation (HDO) and isomerization (ISO) steps, respectively. The enhancements in the catalysts properties are due to the acidic effect of OxA via the incorporation of PdOxC, while the additional enhancements in the properties and the ISO activity of FPd/Z was ascribed to the acidic effect of fluoride ion modification. It is obvious that OxA functionalization and subsequent fluoride ion modification are highly invaluable toward biofuel production. (C) 2015 Elsevier B.V. All rights reserved.
| Item Type: | Article |
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| Funders: | Higher Impact Research-Minisrty of Higher Education of the Faculty of Engineering, University of Malaya D000011-16001 |
| Additional Information: | ISI Document Delivery No.: CG4IE Times Cited: 0 Cited Reference Count: 38 Cited References: Ayodele OB, 2014, APPL CATAL A-GEN, V470, P285, DOI 10.1016/j.apcata.2013.11.013 Ayodele OB, 2012, APPL CATAL A-GEN, V413, P301, DOI 10.1016/j.apcata.2011.11.023 Ayodele OB, 2013, APPL CLAY SCI, V72, P74, DOI 10.1016/j.clay.2013.01.004 Ayodele O.B., 2015, ENERGY CONVERS MANAG Ayodele O.B., 2015, J TAIWAN I CHEM ENG Ayodele OB, 2013, APPL CLAY SCI, V83-84, P171, DOI 10.1016/j.clay.2013.08.019 Ayodele OB, 2013, J IND ENG CHEM, V19, P966, DOI 10.1016/j.jiec.2012.11.018 Danuthai T, 2011, APPL CATAL A-GEN, V409, P74, DOI 10.1016/j.apcata.2011.09.029 Duan AJ, 2011, CATAL TODAY, V175, P485, DOI 10.1016/j.cattod.2011.03.044 Gannouni A, 2012, J CATAL, V289, P227, DOI 10.1016/j.jcat.2012.02.014 Ghule AV, 2010, MATER CHEM PHYS, V119, P86, DOI 10.1016/j.matchemphys.2009.07.050 Guzman A, 2010, CATAL TODAY, V156, P38, DOI 10.1016/j.cattod.2009.11.015 Hui K. S., 2009, INT J CHEM BIOL ENG, V2, P165 Ibrahim HS, 2010, J HAZARD MATER, V182, P842, DOI 10.1016/j.jhazmat.2010.06.118 Immer JG, 2010, APPL CATAL A-GEN, V375, P134, DOI 10.1016/j.apcata.2009.12.028 Jamil TS, 2011, SOLID STATE SCI, V13, P198, DOI 10.1016/j.solidstatesciences.2010.11.014 Jia HF, 2012, RSC ADV, V2, P10874, DOI 10.1039/c2ra21993j Kazemimoghadam M, 2011, DESALINATION, V278, P438, DOI 10.1016/j.desal.2011.05.042 Kovacs S, 2011, CHEM ENG J, V176, P237, DOI 10.1016/j.cej.2011.05.110 Li JJ, 2012, FUEL, V97, P504, DOI 10.1016/j.fuel.2012.02.049 Ma YN, 2014, ADV POWDER TECHNOL, V25, P495, DOI 10.1016/j.apt.2013.08.002 Mekkawi D.M. EL-, 2014, J ENV CHEM ENG, V2, P723 Milina M., 2015, NAT COMMUN Ohtsuka H, 1999, APPL CATAL B-ENVIRON, V21, P133, DOI 10.1016/S0926-3373(99)00014-4 Park JI, 2011, FUEL, V90, P182, DOI 10.1016/j.fuel.2010.09.002 Pommier B, 1999, PHYS CHEM CHEM PHYS, V1, P1665, DOI 10.1039/a808792j Ray F, 2006, NEUES JB MINERALOGIE, V183, P107 Rida K, 2013, APPL CLAY SCI, V83-84, P99, DOI 10.1016/j.clay.2013.08.015 Shams K, 2007, MICROPOR MESOPOR MAT, V106, P268, DOI 10.1016/j.micromeso.2007.03.007 Simacek P, 2009, FUEL, V88, P456, DOI 10.1016/j.fuel.2008.10.022 Sotelo-Boyas R, 2011, IND ENG CHEM RES, V50, P2791, DOI 10.1021/ie100824d Sousa LA, 2012, APPL CATAL A-GEN, V449, P105, DOI 10.1016/j.apcata.2012.09.030 Wang JQ, 2014, MICROPOR MESOPOR MAT, V199, P50, DOI 10.1016/j.micromeso.2014.08.002 Xiaoling L., 2012, CHINESE J CATAL, V33, P1889 Xue T, 2012, MICROPOR MESOPOR MAT, V156, P29, DOI 10.1016/j.micromeso.2012.02.014 Yu Y, 2001, MICROPOR MESOPOR MAT, V46, P23, DOI 10.1016/S1387-1811(01)00271-2 Zhang H., 2015, APPL CATAL B Zhou ZH, 2014, APPL CLAY SCI, V97-98, P110, DOI 10.1016/j.clay.2014.05.015 Ayodele, O. B. Farouk, Hamisu U. Mohammed, Jibril Uemura, Yoshimitsu Daud, W. M. A. W. Engineering, Faculty /I-7935-2015 Engineering, Faculty /0000-0002-4848-7052 Higher Impact Research-Minisrty of Higher Education of the Faculty of Engineering, University of Malaya D000011-16001 The authors sincerely acknowledge the financial support from Higher Impact Research-Minisrty of Higher Education project no D000011-16001 of the Faculty of Engineering, University of Malaya. 0 ELSEVIER SCIENCE BV AMSTERDAM J MOL CATAL A-CHEM |
| Uncontrolled Keywords: | Biofuel, palladium catalyst, hydrodeoxygenation, isomerization, oleic acid, photo-fenton process, ferrioxalate catalyst, ferric oxalate, natural kaolin, rapeseed oil, degradation, 4-nitrophenol, deoxygenation, calcination, amoxicillin, |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering |
| Depositing User: | Mr Jenal S |
| Date Deposited: | 17 Mar 2016 01:21 |
| Last Modified: | 08 Nov 2017 08:55 |
| URI: | http://eprints.um.edu.my/id/eprint/15711 |
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