NDLI: Production of Fermentable Sugars and Hydrogen-Rich Gas from Agave tequilana Biomass

Content Provider	Springer Nature Link
Author	Farías Sánchez, Juan Carlos Velázquez Valadez, Ulises Vargas Santillán, Alfonso Pineda Pimentel, María Guadalupe Mendoza Chávez, Erick Alejandro Rutiaga Quiñones, José Guadalupe Saucedo Luna, Jaime Castro Montoya, Agustín Jaime
Copyright Year	2016
Abstract	The Mexican tequila industry annually processes approximately 1 × 10$^{6}$ Agave tequilana plants, generating approximately 1.78 × 10$^{8}$ kg of bagasse per year. This biomass is considered an attractive alternative to fossil fuels as an energy source and to produce biofuels and/or chemical products because it is produced and used without adversely affecting the environment. The first aim of the present work was to determine the effect of temperature, the concentration of H$_{2}$SO$_{4,}$ and reaction time on the hydrolysis of agave bagasse to maximize the fermentable sugars using a steam explosion. This step process generated 71.11 g/L of reducible sugars in the supernatant (59.29 % glucose, 29.05 % xylose, and 11.66 % fructose) and unconverted organic matter of enzymatic hydrolysis bagasse (35.4 % α-cellulose, 7.33 % hemicellulose, 49.91 % lignin, and 7.31 % ashes). A mathematical surface response analysis of the hydrolysis was used for process optimization. The second aim involves the study of the thermodynamics of the reforming of unconverted organic matter from enzymatic hydrolysis of Agave tequilana bagasse (ATB) evaluated by the Gibbs free energy minimization method for hydrogen production. The effect of the parameters on the system performance measures, such as reaction temperature (T), Water/Biomass ratio (WBR), and pressure (P), were also investigated. The maximum H$_{2}$ production obtained was 23.2 mol of H$_{2}$/271.5 g ATB with a WBR ≥ 11 and a temperature of 740 °C. These findings indicate that the temperature and WBR are essential factors in the production of H$_{2}$, which was reflected in the efficiency of the process.
Starting Page	1015
Ending Page	1022
Page Count	8
File Format	PDF
ISSN	19391234
Journal	BioEnergy Research
Volume Number	9
Issue Number	4
e-ISSN	19391242
Language	English
Publisher	Springer US
Publisher Date	2016-10-06
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lignocellulose residue Acid hydrolysis Agave tequilana Hydrogen Thermodynamic analysis Plant Sciences Plant Genetics & Genomics Plant Breeding/Biotechnology Plant Ecology Wood Science & Technology
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment Agronomy and Crop Science

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