BioChem - DOS

Laboratory and pilot scale pretreatment of sugarcane bagasse by acidified aqueous glycerol solutions

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

Zhang, Z.; Wong, H.H.; Albertson, P.L.; Doherty, W.O.S.; O'Hara, I.M.

Pretreatment of sugarcane bagasse with acidified aqueous glycerol solution was evaluated at both laboratory and pilot scales. Laboratory scale pretreatment (4.00g dry mass in 40.00g liquid) with glycerol solutions containing &le;20wt.% water and 1.2wt.% HCl at 130<SUP>o</SUP>C for 60min resulted in biomass having glucan digestibilities of &ge;88%. Comparable glucan enzymatic digestibility of 90% was achieved with bagasse pretreated at pilot scale (10kg dry mass in 60kg liquid) using a glycerol solution containing 0.4wt.% HCl and 17wt.% water at 130<SUP>o</SUP>C for 15min. We attribute more efficient pretreatment at pilot scale (despite shorter reaction time and reduced acid content) to improved mixing and heat transfer in a horizontal reactor. Pretreatment of sugarcane bagasse with acid-catalysed glycerol solutions likely produces glycerol-glycosides, which together with hydrolysed lignin are potential substrates for the production of biopolymers.

2013

Elsevier Applied Science

0960-8524

138

pp.14-21

10.1016/j.biortech.2013.03.065

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART66028305

https://eprints.qut.edu.au/219146/1/Accepted.pdf

Sugarcane bagasse; Glycerol; Pretreatment; Pilot scale; Enzymatic hydrolysis