Synthesis of Renewable Lubricant Alkanes from Biomass-Derived Platform Chemicals
Mengyuan Gu1, Qineng Xia1, Xiaohui Liu1
1Shanghai Key Laboratory of Functional Materials Chemistry and, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science of Technology, No. 130 Meilong Road, Shanghai, 200237, P.R. China.
Abstract:
The catalytic synthesis of liquid alkanes from renewable biomass has received tremendous attention in recent years. However, bio-based platform chemicals have not to date been exploited for the synthesis of highly branched lubricant alkanes, which are currently produced by hydrocracking and hydroisomerization of long-chain n-paraffins. A selective catalytic synthetic route has been developed for the production of highly branched C23 alkanes as lubricant base oil components from biomass-derived furfural and acetone through a sequential four-step process, including aldol condensation of furfural with acetone to produce a C13 double adduct, selective hydrogenation of the adduct to a C13 ketone, followed by a second condensation of the C13 ketone with furfural to generate a C23 aldol adduct, and finally hydrodeoxygenation to give highly branched C23 alkanes in 50.6 % overall yield from furfural. This work opens a general strategy for the synthesis of high-quality lubricant alkanes from renewable biomass.
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