Abstract：
:The sustainability of a biofuel is severely affected by the technological route of its production. Chemical pretreatment can be considered the traditional method of decomposition of the lignocellulose into its mono and oligomeric units, which can be further bioconverted to ethanol. The evaluation of the recent advances in chemical pretreatments of sugarcane bagasse, especially diluted acids, alkaline, organosolv and ionic liquids, identified the critical points for sustainability. In this context, chemicals recovery and reutilization or their substitution by green solvents, heat and electricity generation through bioenergy, reutilization of water from evaporators, vinasse concentration and the upgrading of lignin were discussed as strategic routes for developing sustainable chemical-based lignocellulose pretreatment. The advances in the technologies that allow greater fractionation of lignocellulosic biomass should be focused on the minimization of the use of natural resources, effluent generation and energy expenditure.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Vieira S,Barros MV,Sydney ACN,Piekarski CM,de Francisco AC,Vandenberghe LPS,Sydney EBdoi
10.1016/j.biortech.2019.122635subject
Has Abstractpub_date
2020-03-01 00:00:00pages
122635eissn
0960-8524issn
1873-2976pii
S0960-8524(19)31865-6journal_volume
299pub_type
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