Three-dimensional, mesoporous titanosilicates as catalysts for producing biodiesel and biolubricants
Title | Three-dimensional, mesoporous titanosilicates as catalysts for producing biodiesel and biolubricants |
Publication Type | Journal Article |
Year of Publication | 2013 |
Authors | Kotwal, M, Kumar, A, Darbha, S |
Journal | Journal of Molecular Catalysis A-Chemical |
Volume | 377 |
Pagination | 65-73 |
Date Published | OCT |
ISSN | 1381-1169 |
Keywords | Biodiesel, Esterification of fatty acid, Lubricant basestocks, mesoporous materials, Ti-SBA-12, Ti-SBA-16, Titanosilicates |
Abstract | The application of three-dimensional, mesoporous titanosilicates, Ti-SBA-12 and Ti-SBA-16, as reusable solid acid catalysts for producing biodiesel and biolubricants is reported for the first time. Biodiesel was prepared by esterification of oleic acid with monohydric methanol and biolubricants by esterification with polyhydric alcohols (glycerol, trimethylolpropane, neopentyl glycol and pentaerythritol). High catalytic activity of these catalysts is attributed to the presence of dispersed Lewis acidic Ti sites and mesoporosity in the structure. Biodiesel yields as high as 90 mol% were obtained at 443 K. Surface hydrophobicity of the catalyst has also a predominant role, especially, in reactions involving polyhydric alcohols. In those reactions, Ti-SBA-16 showed higher catalytic activity than Ti-SBA-12. (c) 2013 Elsevier B.V. All rights reserved. |
DOI | 10.1016/j.molcata.2013.04.029 |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 3.679 |