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Biodiesel production from waste cooking oil catalyzed by TiO2-MgO mixed oxides
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
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2010 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 101, no 24, 9570-9576 p.Article in journal (Refereed) Published
Abstract [en]

Mixed oxides of TiO2-MgO obtained by the sal-gel method were used to convert waste cooking oil into biodiesel. Titanium improved the stability of the catalyst because of the defects induced by the substitution of Ti ions for Mg ions in the magnesia lattice. The best catalyst was determined to be MT-1-923, which is comprised of an Mg/Ti molar ratio of 1 and calcined at 923 K, based on an assessment of the activity and stability of the catalyst. The main reaction parameters, including methanol/oil molar ratio, catalyst amount, and temperature, were investigated. The catalytic activity of MT-1-923 decreased slowly in the reuse process. After regeneration, the activity of MT-1-923 slightly increased compared with that of the fresh catalyst due to an increase in the specific surface area and average pore diameter. The mixed oxides catalyst. TiO2-MgO, showed good potential in large-scale biodiesel production from waste cooking oil.

Place, publisher, year, edition, pages
2010. Vol. 101, no 24, 9570-9576 p.
Keyword [en]
Biodiesel, Waste cooking oil, Solid catalyst, Stability, Heterogeneous
National Category
Chemical Engineering
URN: urn:nbn:se:kth:diva-26666DOI: 10.1016/j.biortech.2010.07.066ISI: 000282201200022ScopusID: 2-s2.0-77956181036OAI: diva2:373709
QC 20101201Available from: 2010-12-01 Created: 2010-11-26 Last updated: 2010-12-01Bibliographically approved

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