BioChem - DOS

Effect of severity on dilute acid pretreatment of lignocellulosic biomass and the following hydrogen fermentation

International journal of hydrogen energy

Gonzales, R.R.; Sivagurunathan, P.; Kim, S.H.

<P>This study aimed to investigate the relationship of the severity of dilute acid pretreatment and the following dark hydrogen fermentation performance. Empty palm fruit bunch, rice husk, and pine tree wood were hydrolyzed in 5% (v/v) H2SO4 at 10% (w/v) solid/liquid ratio and 121 degrees C for 30, 60, and 90 min, and then used as the substrate of batch hydrogen fermentation. The maximum sugar yield was achieved at pretreatment with 60 min reaction time; however, it did not guarantee the maximum H-2 production. Hydrolyzate obtained from pretreatment where the combined severity factor was at or over 2.01 showed severe 5-hydroxymethylfurfural production and consequent decrease of H-2 production rate. Peak H-2 production rates of 2640, 3340, and 2565 mL H-2 L-1 day(-1) were achieved at the following severity factors: 1.95, 1.86, and 1.83, for empty palm fruit bunch, rice husk, and pine tree wood, respectively. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.</P>

2016

Pergamon Press ; Elsevier Science Ltd

0360-3199

1879-3487

41

46

pp.21678-21684

10.1016/j.ijhydene.2016.06.198

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART76823034

Biohydrogen; Dilute acid pretreatment; Lignocellulosic biomass; Dark fermentation; Combined severity factor