TY - JOUR
T1 - Converting glycerol into hydrogen, ethanol, and diols with a Klebsiella sp. HE1 strain via anaerobic fermentation
AU - Wu, Ken Jer
AU - Lin, Yeuh Hui
AU - Lo, Yung Chung
AU - Chen, Chun Yen
AU - Chen, Wen Ming
AU - Chang, Jo Shu
N1 - Funding Information:
The authors gratefully acknowledge the financial support of Taiwan's National Science Council (Grant No. NSC 95-2221-E-006-164-MY3 ) and Taiwan's Bureau of Energy (Grant Nos. NSC 95-ET-7-006-004-ET and NSC 96-ET-7-006-004-ET ).
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/1
Y1 - 2011/1
N2 - An isolated Klebsiella sp. HE1 strain was used to produce H2 and other energy-rich soluble metabolites from glycerol at different pH values, temperatures, and glycerol concentrations. The highest cumulative hydrogen production (6.89l), H2 production rate (11.76mmol/h/l), and hydrogen yield (0.345molH2/mol glycerol) were obtained at 35°C, pH 6.0, and an initial glycerol concentration (Cgly) of 50g/l. These conditions are also preferable for producing ethanol, 1,3-propanediol, and 2,3-butanediol with the highest production rate of 6.80 (Cgly=50g/l)mmol/h/l, 6.95 (Cgly=70g/l)mmol/h/l and 1.17 (Cgly=50g/l)mmol/h/l, respectively, and the highest yields of 0.8 (Cgly=10g/l), 0.37 (Cgly=70g/l), and 0.08 (Cgly=70g/l) mol/mol glycerol, respectively. Combining the gaseous (H2) and liquid fuels (alcohols), the highest total energy generation rate was 26.7kJ/h/l obtained at Cgly=70g/l, while the best total energy yield was 0.90kJ/kJ at Cgly=50g/l.
AB - An isolated Klebsiella sp. HE1 strain was used to produce H2 and other energy-rich soluble metabolites from glycerol at different pH values, temperatures, and glycerol concentrations. The highest cumulative hydrogen production (6.89l), H2 production rate (11.76mmol/h/l), and hydrogen yield (0.345molH2/mol glycerol) were obtained at 35°C, pH 6.0, and an initial glycerol concentration (Cgly) of 50g/l. These conditions are also preferable for producing ethanol, 1,3-propanediol, and 2,3-butanediol with the highest production rate of 6.80 (Cgly=50g/l)mmol/h/l, 6.95 (Cgly=70g/l)mmol/h/l and 1.17 (Cgly=50g/l)mmol/h/l, respectively, and the highest yields of 0.8 (Cgly=10g/l), 0.37 (Cgly=70g/l), and 0.08 (Cgly=70g/l) mol/mol glycerol, respectively. Combining the gaseous (H2) and liquid fuels (alcohols), the highest total energy generation rate was 26.7kJ/h/l obtained at Cgly=70g/l, while the best total energy yield was 0.90kJ/kJ at Cgly=50g/l.
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U2 - 10.1016/j.jtice.2010.04.005
DO - 10.1016/j.jtice.2010.04.005
M3 - Article
AN - SCOPUS:78650239403
SN - 1876-1070
VL - 42
SP - 20
EP - 25
JO - Journal of the Taiwan Institute of Chemical Engineers
JF - Journal of the Taiwan Institute of Chemical Engineers
IS - 1
ER -
