TY - JOUR
T1 - Nanoparticles of Pd supported on bacterial biomass for hydroprocessing crude bio-oil
AU - Kunwar, Bidhya
AU - Deilami, Sam Derakhshan
AU - Macaskie, Lynne E.
AU - Wood, Joseph
AU - Biller, Patrick
AU - Sharma, Brajendra K.
N1 - Funding Information:
J. Wood and B.K. Sharma are grateful to the Birmingham-Illinois Partnership Discovery, Engagement and Education (BRIDGE) program for funding. This work was supported by NERC (Grant No NE/L014076/1) and by a studentship (School of Chemical Engineering) to S.D. The help of Dr I. Mikheenko is acknowledged, with thanks.
Publisher Copyright:
© 2017 The Authors
PY - 2017
Y1 - 2017
N2 - A process of much future-potential for upgrading of biofuels derived from hydrothermal liquefaction (HTL) is catalytic hydrotreatment. HTL bio-oil, manufactured from Chlorella microalgae in a reactor operating in continuous flow mode was processed via hydrotreatment using a bio-Pd/C catalyst. This catalyst comprises a bacterial biomass support decorated with Pd(0) nanoparticles. The hydrotreatment performance of commercial Pd/C catalyst and bio-Pd/C was compared in order to benchmark the latter catalyst preparation. Oil:catalyst ratio, time and temperature were investigated as three variables for optimization. Similar conversion was observed for both Pd/C (76% liquid yield, 4.2% O) and bio-Pd/C (77% liquid yield, 3.9% O) catalysts under equivalent conditions (4 h reaction time, 5 wt% Pd loading, 325 °C). The oxygen content was reduced by 65%, whilst the nitrogen content decreased by 35%, with a bio-oil:catalyst ratio of 20, at a temperature of 325 °C and reaction time of 4 h. The upgraded oil was further studied by elemental analysis, Simulated Distillation and GC–MS, in order to quantify the improvement in fuel properties. The fresh and spent catalysts were analyzed using elemental analysis, TGA and ICP-MS, showing that the bio-oil yield was augmented by conversion of the biomass component from bio-Pd/C.
AB - A process of much future-potential for upgrading of biofuels derived from hydrothermal liquefaction (HTL) is catalytic hydrotreatment. HTL bio-oil, manufactured from Chlorella microalgae in a reactor operating in continuous flow mode was processed via hydrotreatment using a bio-Pd/C catalyst. This catalyst comprises a bacterial biomass support decorated with Pd(0) nanoparticles. The hydrotreatment performance of commercial Pd/C catalyst and bio-Pd/C was compared in order to benchmark the latter catalyst preparation. Oil:catalyst ratio, time and temperature were investigated as three variables for optimization. Similar conversion was observed for both Pd/C (76% liquid yield, 4.2% O) and bio-Pd/C (77% liquid yield, 3.9% O) catalysts under equivalent conditions (4 h reaction time, 5 wt% Pd loading, 325 °C). The oxygen content was reduced by 65%, whilst the nitrogen content decreased by 35%, with a bio-oil:catalyst ratio of 20, at a temperature of 325 °C and reaction time of 4 h. The upgraded oil was further studied by elemental analysis, Simulated Distillation and GC–MS, in order to quantify the improvement in fuel properties. The fresh and spent catalysts were analyzed using elemental analysis, TGA and ICP-MS, showing that the bio-oil yield was augmented by conversion of the biomass component from bio-Pd/C.
KW - Bio-Pd/C
KW - Bio-oil
KW - Hydrothermal liquefaction
KW - Nanoparticles
KW - Upgrading
UR - http://www.scopus.com/inward/record.url?scp=85026859775&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85026859775&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2017.08.007
DO - 10.1016/j.fuel.2017.08.007
M3 - Article
AN - SCOPUS:85026859775
SN - 0016-2361
VL - 209
SP - 449
EP - 456
JO - Fuel
JF - Fuel
ER -