Bioresource Technology 249 (2018) 334–341 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Continuous hydrogen and methane production from Agave tequilana bagasse hydrolysate by sequential process to maximize energy recovery eﬃciency Virginia Montiel Corona, Elías Razo-Flores Instituto Potosino de Investigación Cientíﬁca y Tecnológica A.C., División de Ciencias Ambientales, Camino a la Presa San José 2055, Lomas 4a Sección, C.P. 78216. San Luis Potosí, SLP, Mexico GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Continuous H and CH production in a two-stage process to increase energy recovery from agave bagasse 2 4 Bagasse enzymatic-hydrolysate was studied. In the ﬁrst stage, the eﬀect of organic loading rate (OLR) and stirring speed Hydrogen on volumetric hydrogen production rate (VHPR) was evaluated in a continuous stirred tank reactor (CSTR); by Homoacetogenesis controlling the homoacetogenesis with the agitation speed and maintaining an OLR of 44 g COD/L-d, it was Methane possible to reach a VHPR of 6 L H /L-d, equivalent to 1.34 kJ/g bagasse. In the second stage, the eﬄuent from Two-stage process CSTR was used as substrate to feed a UASB reactor for CH production. Volumetric methane production rate (VMPR) of 6.4 L CH /L-d was achieved with a
Bioresource Technology – Elsevier
Published: Feb 1, 2018
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