Title:
Effect of Pore Size of Pd/MCM-41 on Catalytic Activity for Partial Hydrogenation of Canola Biodiesel
Author(s):
Hongmanorom, P., Luengnaruemitchai, A.
Document(s):
Paper
Poster
Abstract:
Partial hydrogenation with novel Pd supported on ordered mesoporous silica MCM-41 was employed to enhance the resistance to oxidative degradation as well as provide acceptable low temperature flow properties of canola-derived biodiesel. The effects of MCM-41 pore diameter and surface structure on catalytic activity and cis-trans selectivity were mainly investigated. The catalysts with different pore sizes were obtained by adding auxiliary organic, mesitylene, during the synthesis: Pd/MCM-41-r0, Pd/MCM-41-r2.5, and Pd/MCM-41-r3.5 with average pore diameters of 2.61, 3.26, and 3.30 nm, respectively. They were characterized by X-ray diffractometer, surface area analyzer, and transmission electron microscope. After partial hydrogenation, biodiesel was analyzed by Gas Chromatograph and it properties, namely oxidative stability and cloud point, were also evaluated. It was found that Pd/MCM-41-r2.5 and Pd/MCM-41-r3.5 were more active than Pd/MCM-41-r0 in term of triunsaturated and diunsaturated conversion; whereas selectivity toward cis-monounsaturated FAME was highest for Pd/MCM-41-r0. Pd/MCM-41-r3.5 was the best catalyst since it greatly improved oxidative stability to 112.68 h and also still provided acceptable cloud point, 9.2 °C.
Keywords:
biodiesel, Pd/MCM-41, Cis-trans selectivity, pore size, partial hydrogenation
Topic:
Biomass Conversion Technologies for Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Oil-based biofuels
Event:
24th European Biomass Conference and Exhibition
Session:
3DV.3.73
Pages:
1324 - 1328
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-3DV.3.73
Price:
FREE
