Supercritical extraction of waxes and lipids from biomass: A valuable first step towards an integrated biorefinery

JOURNAL OF CLEANER PRODUCTION

卷:177

Article

Attard, Thomas M.¹  Bukhanko, Natalia²  Eriksson, Daniel¹  Arshadi, Mehrdad²  Geladi, Paul²  Bergsten, Urban²  Budarin, Vitaliy L.¹  Clark, James H.¹  Hunt, Andrew J.^1,3 

[1] Univ York, Green Chem Ctr Excellence, Dept Chem, York YO10 5DD, N Yorkshire, England

[2] Swedish Univ Agr Sci, Dept Forest Biomat & Technol, Umea, Sweden

[3] Khon Kaen Univ, Fac Sci, Mat Chem Res Ctr, Dept Chem, Khon Kaen 40002, Thailand

关键词: Waxes;    Lipids;    Supercritical extraction;    Valorisation;    Biorefinery;    Separation;   

DOI  :  10.1016/j.jclepro.2017.12.155

来源: Elsevier

【 摘 要 】

The decline in petrochemical wax supply coupled with the ever-growing demand for bio-products means that the development of a sustainable process to renewably sourced waxes is paramount. This review focuses on recent advances in supercritical extraction as a clean efficient process for extracting waxes from waste biomass as a part of a holistic biorefinery. The use of supercritical carbon dioxide leads to reductions in solvent waste and leaves no solvent residues meaning that the biomass can further processed without the need for energy-intensive solvent removal steps. This technology crucially improves the downstream conversion of residual cellulosic biomass for the sustainable production of sugars, consumer products and biofuels (up to a 40% increase in ethanol production) leading to higher energy efficiencies and higher economic returns. Supercritical carbon dioxide extraction is not only an important technology for the cleaner production of waxes, it is a sustainable pre-treatment of biomass as part of an integrated holistic biorefinery and significantly, it can improve the safety of products, e.g. less off gassing of wood pellets. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

Free