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Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications

Medina-González, Yaocihuatl and Camy, Séverine and Condoret, Jean-Stéphane Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications. (2012) International Journal of Sustainable Engineering, vol. 5 (n° 1). pp. 47-65. ISSN 1939-7038

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Official URL: http://dx.doi.org/10.1080/19397038.2011.613488

Abstract

In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future. The applications are wide from the extraction of hazardous wastes to the cleaning and reuse of paper or production of glucose. To put this topic in context, cellulose chemistry and its interactions with scCO2 are described. The aim of this study was to discuss the new emerging technologies and trends concerning cellulosic materials processed in scCO2 such as cellulose drying to obtain aerogels, foams and other microporous materials, impregnation of cellulose, extraction of highly valuable compounds from plants and metallic residues from treated wood. Especially, in the bio-fuel production field, we address the pre-treatment of cellulose in scCO2 to improve fermentation to ethanol by cellulase enzymes. Other reactions of cellulosic materials such as organic inorganic composites fabrication and de-polymerisation have been considered. Cellulose treatment by scCO2 has been discussed as well. Finally, other applications like deacidification of paper and cellulosic membranes fabrication in scCO2 have been reviewed. Examples of the discussed technologies are included as well.

Item Type:Article
Additional Information:Thanks to Taylor & Francis editor. The definitive version is available online at : http://www.tandfonline.com/10.1080/19397038.2011.613488
HAL Id:hal-00903823
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS (FRANCE)
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Deposited By: Vincent GERBAUD
Deposited On:13 Nov 2013 10:04

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