再生エネルギー研究センターパンフレット（英語）

6/20

5H2 energy carrierproduction ElectrolysisElectrolysisStorage / TransportHydrogen stationFCVSmart houseEV【CHP application】Smart cityElectricity, Heat3H2+C6H5CH3⇔C6H11CH3N2+3H2⇔2NH3CO2+H2⇔HCO2HHydrogen Energy Carrier Team－Production and Utilization Technology of Hydrogen Energy Carrier－Renewable energy such as sunlight and wind power is clean natual resource which is significantly valuable for Japan due to that most of energy resource consumed in Japan is imported from foreign countries. However, since renewable energy is unstable and/or quite dependent on weather and place, amount of electric power acquired with renewable energy is also unstable. Production technologies of hydrogen energy carrier are water electrolyzation technology to produce hydrogen with such unstable electric power, and chemical energy conversion technology of electrolyzed hydrogen with catalyst. These technologies are necessary to introduce a large amount of renewable energy.Research Target　The team has great challenges to solve energy issues by developing technologies of energy storage and utilization for a massive penetration of renewable energy in the future. 　We have been developing technologies on energy conversion of renewable electricity into hydrogen or hydrogen energy carrier which is utilized by generating electricity and heat or is utilized as a fuel for Research OutlineMain Research Facilities　The team has been developing a set of hydrogen technologies using electric power generated by fiuctuating renewable energy: hydrogen production of water electrolysis, chemical conversion into hydrogen energy carrier, and utilization of hydrogen. The basic technologies such as production of hydrogen energy carrier and catalysts for that, and hydrogen engines are applied to large scale demonstration equipment, and the knowledge gained through the experiments will achieve a technical breakthrough:●Technologies for high-efficient production of hydrogen energy carriers (e.g. organic chemical hydride, ammonia,formic acid). We are developing high-efficient technologies for the catalyst synthesis.※Methylcyclohexane（MCH）： Organic compound containing 6 wt% hydrogen, which is liquid at room temperature and atmospheric pressure. One L of MCH stores 500 L of hydrogen gas.※Formic Acid: Organic compound containing 4wt% hydrogen, which is liquid at room temperature and atomospheric pressure. Formic acid is produced by synthesising carbon dioxide and hydrogen. One L of formic acid stores 600 L of hydrogen gas.●Technologies on combustion use of hydrogen or hydrogen energy carriers for co-generation engines and gas turbines.vehicles. These technologies are quite useful to stabilize storage and to supply renewable electricity generated by using renewable energy which is susceptible to change of weather. It will be consequently achieved that much more renewable energy can be used efficiently regardless of locations and seasons, and can solve energy security issues in the future.●Demonstration of an integrated system of hydrogen production/utilization. A new system to optimize storage and utilization of electric power generated by renewable energy will be proposed through this experiments.Hydrogenation/Dehydrogenation Reaction ApparatusCatalytic hydrogenation and dehydrogenation reaction are analyzed by on-line gas chromatography. Fluctuating hydrogen simulating derived from renewable energy also can be supplied.Advanced Co-generation EngineExcessive operational experiment and multi-fuel engine combustion technology with hydrogen, diesel fuel, etc by use of 4 cylinder diesel engine（Displacement：5.2L）Hydrogen flow rate -10,000mL/min, Toluene and MCH flow rate-10g/minHigh temp.exhaust gasHydrogen injection unitHydrogen injection unitDehydrogenation reactorDehydrogenation reactorSupplied as fuelHydrogenMedium temp.exhaust gasToluene