Premium
A review of the potential of pretreated solids to improve gas biofuels production in the context of an OFMSW biorefinery
Author(s) -
RomeroCedillo Leticia,
PoggiVaraldo Hector M,
PonceNoyola Teresa,
RíosLeal Elvira,
RamosValdivia Ana C,
CerdaGarcía Rojas Carlos M,
TapiaRamírez José
Publication year - 2017
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.5116
Subject(s) - biorefinery , biofuel , context (archaeology) , waste management , municipal solid waste , biomass (ecology) , biogas , pulp and paper industry , environmental science , biodegradable waste , anaerobic digestion , engineering , chemistry , organic chemistry , paleontology , biology , oceanography , methane , geology
The organic fraction of municipal solid waste ( OFMSW ), mainly composed of lignocellulosic polymers, is extremely complex. Therefore, it is necessary to apply pretreatments to remove the lignin content and decrease the cellulose crystallinity in order to use the OFMSW for gas biofuels production in the context of biorefineries from waste. This work focused on critically reviewing the conventional pretreatments applied to OFMSW , with the goal of improving the H 2 production, as well as other biofuels in modern biorefineries. There are a wide variety of pretreatments that have successfully been used, mainly alkaline, milling and dilute acid. In addition, some research has focused on the recovery and reutilization of the alkali, acid or solvents after the pretreatment, to be incorporated into new cycles of production, minimizing the environmental impacts. Moreover, it would be necessary to incorporate analytical tools, in order to determine the sustainability of the biorefinery project. It is concluded that waste pretreatments could significantly contribute to increased yields of biogas fuels in organic waste‐based biorefineries. Therefore, establishing preliminary stages for conditioning biomass or wastes is essential to improve the degradation of wastes and bio‐product generation. © 2016 Society of Chemical Industry