Catalytic deoxygenation of triglycerides to hydrocarbons over supported nickel catalysts

Development of nickel based catalysts for the transformation of natural triglycerides and related compounds into green diesel: a critical review

“…Taking into account the superior activity of the Ni catalyst with respect to Pd and Pt catalysts both for triglycerides conversion and cracking of the fatty acid chains to light hydrocarbons Morgan et al [228] extended their investigation on the deoxygenation of triolein and soybean oil under nitrogen atmosphere using a nickel catalyst supported on γ-alumina (Ni/Al 2 O 3 ), as well as Ni-Al, Ni-Mg-Al and Mg-Al layered double hydroxides (LDH). Obviously, catalysts of this type are more easily regenerated via burn-off of the coke than the nickel catalyst supported on carbon.…”

“…The cracking/hydrocracking ( Fig. 2) performed over acidic catalysts results to the so-called organic liquid product, namely a mixture of hydrocarbons (in the gasoline, kerosene and diesel range) with traces of shorter chain oxygenates as well as hydrocarbon gases (C 3 -C 5 ) and coke [74 and references there in, [84][85][86][87][88][89][90][91]. The hydrocarbons obtained by cracking of triglycerides consist, besides paraffins, of naphthenes and aromatics obtained by secondary reactions.…”

“…The production of the organic liquid product can be obtained also by hydrocracking. The presence of hydrogen somewhat protects the active phase of the catalysts used (supported metal or sulfide) [74 and references there in, 90,91].…”

Activated Carbon, Carbon Nanofiber and Carbon Nanotube Supported Molybdenum Carbide Catalysts for the Hydrodeoxygenation of Guaiacol

“…An Agilent 3000 Micro-GC with a configuration previously reported [33] was calibrated for possible gaseous products, including straight chain C1-C6 alkanes and alkenes. The analysis of gaseous products formed during representative guaiacol experiments proved unremarkable, no products being detected.…”

Study on palm oil hydrogenation for clean fuel over Ni–Mo–W/γ-Al 2 O 3 –ZSM-5 catalyst

“…The most widely investigated methods are transesterification [7][8][9][10], catalytic cracking [11][12][13], and hydrodeoxygenation [14][15][16][17]. Transesterification of vegetable oil with lower alcohols, which yield fatty acid methyl esters (FAMEs), is performed under mild conditions and can be considered as a mature technology.…”