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International Journal of Chemical Engineering
Volume 2012 (2012), Article ID 215258, 9 pages
http://dx.doi.org/10.1155/2012/215258
Research Article

Catalytic Transformation of Tall Oil into Biocomponent of Diesel Fuel

1VÚRUP a.s., Vlčie hrdlo, 820 03 Bratislava, Slovakia
2Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia

Received 16 October 2011; Revised 17 December 2011; Accepted 31 December 2011

Academic Editor: David Kubička

Copyright © 2012 Jozef Mikulec et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

One of the conventional kraft pulp mills produce crude tall oil which is a mixture of free fatty acids, resin acids, sterols, terpenoid compounds, and many others. This study is devoted to the issue of direct transformation of crude tall oil in a mixture with straight-run atmospheric gas oil to liquid fuels using three different commercial hydrotreating catalysts. Diesel fuel production is an alternative to incineration of these materials. High catalytic activity was achieved for all tested catalysts in temperature range 360–380°C, under 5.5 MPa hydrogen pressure and ratio H2/feedstock 500–1000 l/l. Crude tall oil can be converted to diesel oil component via simultaneous refining with straight-run atmospheric gas oil on NiMo/Al2O3 and NiW/Al2O3-zeolite catalysts. All tested catalysts had very good hydrodenitrogenation activity and high liquid yield were at tested conditions.