Metal organic framework-derived advanced porous material supported catalysts for green diesel production from palm fatty acid distillate via deoxygenation pathways
Document Type
Article
Publication Date
1-1-2025
Abstract
Green diesel production from renewable non-edible feedstock through deoxygenation (DO) is a viable step to reduce dependency on petroleum-based fuel in the transportation sector. As such, the catalytic conversion of undiluted palm fatty acid distillate (PFAD) into paraffinic hydrocarbons through DO was explored using Nidoped pyrolysed MIL-101 (MOF-Cr2O3). In this study, 4-25 wt% Ni/MOF-Cr2O3 catalysts were prepared through wet impregnation and calcined at 600 degrees C for 4 h under N2 flow, followed by reduction at 450 degrees C for 4 h under H2 flow. Catalytic DO was carried out within 280 degrees C-360 degrees C with a retention time of 1-5 h by using 1-7 wt.% of catalyst loading under continuous N2 flow. Results showed that 14Ni/MOF-Cr2O3 was the most effective catalyst for PFAD conversion into paraffinic hydrocarbons. About 93 % hydrocarbon yield with 91 % n- (C15+C17) selectivity was achieved using 3 wt% catalyst at 320 degrees C within 3 h. The exceptional catalytic activity was attributed to the synergistic correlation between catalyst properties, including finely dispersed Ni facilitated by a porous and high surface area support, and optimal presence of acid-base active sites on the catalyst. Preliminary studies showed that 14Ni/MOF-Cr2O3 displayed high stability in terms of catalytic activity and regeneration potential.
Keywords
Deoxygenation, Green diesel, Nickel, Palm fatty acid distillate, Porous materials
Divisions
nanotechnology
Publication Title
Renewable Energy
Volume
238
Publisher
Elsevier
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND