Screening of active solid catalysts for esterification of tall oil fatty acids with methanol

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Jaroslav Kocík, Ajaikumar Samikannu, Hasna Bourajoini, Tung Ngoc Pham, Jyri-Pekka Mikkola, Martin Hájek, Libor Čapek
Publiceringsår: 2017
Tidskrift: Journal of Cleaner Production
Tidskriftsakronym: J. Cleaner Prod.
Volym: 155
Artikelns första sida, sidnummer: 34
Artikelns sista sida, sidnummer: 38
eISSN: 1879-1786


Abstrakt

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.


Nyckelord

Chemical Engineering

Senast uppdaterad 2020-20-01 vid 03:11