Hemicellulose hydrolysis catalysed by solid acids†
نویسندگان
چکیده
The University Repository is a digital collection of the research output of the University, available on Open Access. Copyright and Moral Rights for the items on this site are retained by the individual author and/or other copyright owners. Users may access full items free of charge; copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational or notforprofit purposes without prior permission or charge, provided:
منابع مشابه
Acid Hydrolysis of Pretreated Palm Oil Lignocellulosic Wastes
Palm oil solid wastes consist of cellulose, hemicellulose and lignin. In this study, a single stage of acid hydrolysis process of palm oil empty fruit bunch (EFB) for production of fermentable sugar was carried out under moderate temperature (45°C) and ambient pressure. The effect of four different process variables such as solid size, HCl concentration, solid percentage and temperature were in...
متن کاملExtraction of Hemicellulose and Lignin from Sugarcane Bagasse for Biopolymer Films: Green Process
A hemicellulose is any of several heteropolymers , such as arabinoxylans, present along with cellulose in almost all plant cell walls. Hemicellulose has a random, amorphous structure with little strength. It is easily hydrolyzed by dilute acid or base as well as myriad hemicellulase enzymes. In this study, lignin and hemicellulose was extracted from sugarcane bagasse using the ammonium hydrolys...
متن کاملPlug Flow Reactor Model to Analyse Operating Conditions on the Dilute H2SO4-acid Hydrolysis of Sugarcane Bagasse at High-Solids Loading
Previous kinetic modelling for dilute H2SO4-acid hydrolysis of sugarcane bagasse operated using batch reactor led to conclude that hemicellulose conversion, about 75 % of theoretical, was possible to be reached using 1.0 % w v H2SO4 solution, solid load equal to 20 % and 80 min of operation. The present study aims to expand the fundamental understanding of the kinetic involved in this process. ...
متن کاملLignocellulose as raw material in fermentation processes
Lignocellulose in the form of forestry, agricultural, and agro-industrial wastes is accumulated in large quantities every year. These materials are mainly composed of three groups of polymers, namely cellulose, hemicellulose, and lignin. Cellulose and hemicellulose are sugar rich fractions of interest for use in fermentation processes, since microorganisms may use the sugars for growth and prod...
متن کاملHydrolysis of oligosaccharides over solid acid catalysts: a review.
Mild fractionation/pretreatment processes are becoming the most preferred choices for biomass processing within the biorefinery framework. To further explore their advantages, new developments are needed, especially to increase the extent of the hydrolysis of poly- and oligosaccharides. A possible way forward is the use of solid acid catalysts that may overcome many current drawbacks of other c...
متن کامل