Evaluation of Transportation Fuel from Bioethanol

TSUTSUMI Yuya, KONO Watari, SATOKAWA Shigeo, KOJIMA Toshinori
2009 Journal of Ecotechnology Research  
For this study, we established and evaluated two usage scenarios of ethanol (EtOH) from biomass for transportation: direct use of ethanol and use of hydrogen produced from EtOH. As a result, we examined the effectiveness of fuel cell vehicles of the latter case. In the EtOH direct-use scenario, the EtOH-to-Tank efficiency was 63.6-81.0% (energy loss: 706-289 kJ/mol) with 30% Tank-to-Wheel efficiency of EtOH hybrid cars. In other words, in the scenario of fuel cell vehicles with 60%
more » ... efficiency, the efficiency of EtOH-to-Tank should be more than 31.8-40.5%. From the results of the present study, it can be concluded that the two evaluated scenarios have comparative efficiencies, considering the currently published EtOH-to-Tank efficiency using steam reforming of 34.0-43.0%. For the realization of bioEtOH-oriented fuel cell vehicles, the development of higher hydrogen production efficiency is required.
doi:10.11190/jer.15.9 fatcat:dgotzfhfhvgk7m2yovkiyk5vji