Affiliation:
1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, 510640 Guangzhou, China
Abstract
Biomass energy has attracted much attention because of its clean and renewable
characteristics. At present, C2–C3 polyols such as glycerol, 1,2-propanediol, and ethylene
glycol, widely used as platforms for downstream chemicals or directly used as chemicals
in diversified industries, mainly depend on the petrochemical industry. In terms of the
feedstock for C2–C3 polyol production, the C3-derived glycerol is a side product during
biodiesel synthesis, whereas the C5-derived xylitol and C6-derived sorbitol can be mainly
obtained by hydrolysis–hydrogenation of hemicellulose and cellulose from lignocellulosic
biomass, respectively. In this review, we summarize the catalysts and catalysis for selective
hydrogenolysis of these polyhydric compounds to C2–C3 polyols and introduce the
reaction pathways for the target polyol formation based on the C3, C5, and C6 polyhydric
alcohol hydrogenolysis. Finally, state-of-the-art technologies are described and the remaining challenges and
further prospects are presented in view of the technical aspects.
Funder
National Key Research and Development Project
National Natural Science Foundation of China
Natural Science Foundation of Guangdong Province
Publisher
Bentham Science Publishers Ltd.
Cited by
5 articles.
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