TY - JOUR
T1 - Enhanced bioenergy recovery from rapeseed plant in a biorefinery concept
AU - Luo, Gang
AU - Talebnia, Farid
AU - Karakashev, Dimitar Borisov
AU - Xie, L.
AU - Zhou, Q
AU - Angelidaki, Irini
PY - 2011
Y1 - 2011
N2 - The present study investigated the utilization of the whole rapeseed plant (seed and straw) for multi-biofuels
production in a biorefinery concept. Results showed that bioethanol production from straw was
technically feasible with ethanol yield of 0.15 g ethanol/g dry straw after combined alkaline peroxide
and stream pretreatment. The byproducts (rapeseed cake, glycerol, hydrolysate and stillage) were evaluated
for hydrogen and methane production. In batch experiments, the energy yields from each feedstock
for, either methane production alone or for both hydrogen and methane, were similar. However, results
from continuous experiments demonstrated that the two-stage hydrogen and methane fermentation
process could work stably at organic loading rate up to 4.5 gVS/(L d), while the single-stage methane production
process failed. The energy recovery efficiency from rapeseed plant increased from 20% in the conventional
biodiesel process to 60% in the biorefinery concept, by utilization of the whole rapeseed plant
for biodiesel, bioethanol, biohydrogen and methane production.
AB - The present study investigated the utilization of the whole rapeseed plant (seed and straw) for multi-biofuels
production in a biorefinery concept. Results showed that bioethanol production from straw was
technically feasible with ethanol yield of 0.15 g ethanol/g dry straw after combined alkaline peroxide
and stream pretreatment. The byproducts (rapeseed cake, glycerol, hydrolysate and stillage) were evaluated
for hydrogen and methane production. In batch experiments, the energy yields from each feedstock
for, either methane production alone or for both hydrogen and methane, were similar. However, results
from continuous experiments demonstrated that the two-stage hydrogen and methane fermentation
process could work stably at organic loading rate up to 4.5 gVS/(L d), while the single-stage methane production
process failed. The energy recovery efficiency from rapeseed plant increased from 20% in the conventional
biodiesel process to 60% in the biorefinery concept, by utilization of the whole rapeseed plant
for biodiesel, bioethanol, biohydrogen and methane production.
U2 - 10.1016/j.biortech.2010.09.071
DO - 10.1016/j.biortech.2010.09.071
M3 - Journal article
SN - 0960-8524
VL - 102
SP - 1433
EP - 1439
JO - Bioresource Technology
JF - Bioresource Technology
IS - 2
ER -