Screening of active solid catalysts for esterification of tall oil fatty acids with methanol. (1st July 2017)

• Record Type: Journal Article
• Authors: Kocík, Jaroslav; Samikannu, Ajaikumar; Bourajoini, Hasna; Pham, Tung Ngoc; Mikkola, Jyri-Pekka; Hájek, Martin; Čapek, Libor
• Is Part Of: Journal of cleaner production. Volume 155:Part 1(2017)
• Page Start: 34
• Page End: 38
• Publication Date: 2017-07-01
• Subjects: Esterification -- Biodiesel -- TOFA -- Mixed oxides -- SBA-15 -- Al-SBA-15; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2016.09.174
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: The paper is focused on the description of the activity/selectivity of mesoporous silica based materials loaded with various types of active species in the esterification of tall oil free fatty acids. The metals such as aluminium, molybdenum, gallium and zinc, including their combinations were impregnated on the mesoporous silica, which was tested in esterification reaction. All these catalysts preserved its tall oil free fatty conversion in the first and the second catalytic cycles. However, while only insignificant amount of gallium or molybdenum was lost from the solid catalyst into the liquid phases, zinc leached from every studied solid catalyst. In contrast to impregnated gallium on mesoporous silica, which exhibited higher acidity and higher tall oil free fatty acids conversion in the first catalytic cycle, but its value was not preserved in the second catalytic test.