TY - JOUR
T1 - Integration of fermentative hydrogen process and fuel cell for on-line electricity generation
AU - Lin, Chi Neng
AU - Wu, Shu Yii
AU - Lee, Kuo Shing
AU - Lin, Ping Jei
AU - Lin, Chiu Yue
AU - Chang, Jo Shu
N1 - Funding Information:
The authors gratefully acknowledge the financial support by Taiwan's Bureau of Energy (Grant no. 94-D0137-2 & 95-D0137-2), The Taiwan National Science Council (NSC92-2214-E-035-002, NSC93-ET-7-006-001-ET, and NSC94-ET-7-006-004-ET), and Feng Chia University (Grant no. FCU-89-J040, FCU-92-N009 and FCU-94-GB66). The authors also gratefully thank Dr. Alex C. Chang, Department of Chemical Engineering, Feng Chia University, for the fuel-cell assembly and primary testing.
PY - 2007/5
Y1 - 2007/5
N2 - In this work, a dark H2 fermentation process was integrated with a proton-exchange-membrane fuel-cell (PEMFC) system for on-line electricity generation. The H2 producing system was a continuously stirred anaerobic bioreactor (CSABR) seeded with silicone-immobilized sludge. The CSABR system, using sucrose as the sole carbon substrate, was able to continuously and stably produce H2 for over 300 days at a hydraulic retention time (HRT) of 6 h and an influent sucrose concentration of 30 g COD/l. The maximum H2 production rate and the optimal H2 yield were 1.15 ± 0.08 l / h / l and 3.71 ± 0.18 mol H2 / mol sucrose, respectively. The H2 produced from the CSABR system was purified via a CO2 absorber and a silica-gel desiccator, and then the > 99 % pure H2 was fed into a PEMFC system at a rate of 1.72 l/h, generating electricity with a stable electromotive force of 3.30 ± 0.04 V. The output power was ca. 0.87 W (at 25 {ring operator} C), and the output voltage and current were stably maintained at 2.28 V and 0.38 A, respectively, when connected to a small light emission diode (LED) panel.
AB - In this work, a dark H2 fermentation process was integrated with a proton-exchange-membrane fuel-cell (PEMFC) system for on-line electricity generation. The H2 producing system was a continuously stirred anaerobic bioreactor (CSABR) seeded with silicone-immobilized sludge. The CSABR system, using sucrose as the sole carbon substrate, was able to continuously and stably produce H2 for over 300 days at a hydraulic retention time (HRT) of 6 h and an influent sucrose concentration of 30 g COD/l. The maximum H2 production rate and the optimal H2 yield were 1.15 ± 0.08 l / h / l and 3.71 ± 0.18 mol H2 / mol sucrose, respectively. The H2 produced from the CSABR system was purified via a CO2 absorber and a silica-gel desiccator, and then the > 99 % pure H2 was fed into a PEMFC system at a rate of 1.72 l/h, generating electricity with a stable electromotive force of 3.30 ± 0.04 V. The output power was ca. 0.87 W (at 25 {ring operator} C), and the output voltage and current were stably maintained at 2.28 V and 0.38 A, respectively, when connected to a small light emission diode (LED) panel.
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U2 - 10.1016/j.ijhydene.2006.09.047
DO - 10.1016/j.ijhydene.2006.09.047
M3 - Article
AN - SCOPUS:34247568806
SN - 0360-3199
VL - 32
SP - 802
EP - 808
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 7
ER -