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Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Frontiers of Chemical Science and Engineering 2022年第8期16卷 1198-1210页

作者： vinayak hegde Parimal Pandit Pranita Rananaware Varsha PBrahmkhatri Centre for Nano and Material Sciences Jain UniversityJain Global CampusBengaluru 562112India

Sulfonic acid functionalized mesoporous silica based solid acid catalysts with different morphology were designed and *** synthesized materials were characterized by various physicochemical and spectroscopic techniques like scanning electron microscopeenergy dispersive X-ray spectroscopy,Fourier transform infrared spectroscopy,Brunauer–Emmett–Teller surface area,thermogravimetric analysis and n-butylamine *** shape of catalysts particles plays an important role in its *** sulfonic acid functionalized mesoporous silica catalysts of spherical shape and the cube shape were assessed for catalytic activity in biodiesel *** catalytic biodiesel production reaction over the catalysts were studied by esterification of free fatty acid,oleic acid with *** effect of various reaction parameters such as catalyst concentration,acid/alcohol molar ratio,catalyst amount,reaction temperature and reaction time on catalytic activity were investigated to optimize the conditions for maximum *** was sulfonated cubic shape mesoporous silica which exhibited better activity as compared to the spherical shape silica ***,the catalyst was regenerated and reused up to three cycles without any significant loss in *** present catalysts exhibit superior performance in biodiesel production and it can be used for the several biodiesel feedstock’s that are rich in free fatty acids.

关键词： solid acid catalyst mesoporous silica sulfonic acid biodiesel esterification oleic acid

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