1、AEC/PEMEC电解水制氢现状与挑战The Current Picture and Challenges of AEC/PEMEC Hydrogen Production by Water Electrolysis杨福源Yang Fuyuan清华大学（车辆与运载学院）School of Vehicle and Mobility,Tsinghua University2022.3.18内容Content1.碳中和目标下的氢能角色与挑战Hydrogens Role and Challenges in Achieving Carbon Neutrality2.碱液/PEM制氢的关键技术及现状Key

2、 Technologies and Current Situation of Hydrogen Production by Alkaline Water Electrolysis/PEM Electrolysis 3.我们的工作Work at Our School2碳中和目标下的氢能角色与挑战Hydrogens Role and Challenges in Achieving Carbon Neutrality13我国温室气体排放现状 Chinas GHG Emission CO2CO2GHG emission(100mtCO2-eq)ConstructionTransportationInd

3、ustrial process Industry Carbon sinkNon-CO2greenhouse gas Non-CO2 greenhouse gasEnergy activitiesNon-electric energy activitiesSteelCementChemical industryNon-ferrous metalsOthersNet emissionGross emissionElectricity可再生能源物质循环Material cycle 热机循环Engine cycle零碳能源体系主要特征：两个支柱、两个循环、一个转换Zero-carbon Energy

4、System:2 Pillars,2 Cycles and 1 Conversion 5电Electricity氢Hydrogen氮循环NH3碳循环CH3OH氢电互转ConversionRenewable energyCarbon cycleNitrogen cycle两个支柱 2 Pillars储电和储氢Electricity storage&Hydrogen storage两个循环 2 Cycles氮循环：氨载体，热机循环Nitrogen cycle:ammonia carrier,engine cycle碳循环：甲醇/芳烃载体，物质循环Carbon cycle:methanol/arom

5、atic hydrocarbon carrier,material cycle一个转换 1 conversion氢电互转Hydrogen-electricity conversion氢-电关系Hydrogen-electricity relationship6电氢HydrogenNitrogen cycle氮循环NH3Carbon cycle碳循环CH3OH氢电互转可再生能源1.绿氢依附于绿电Green hydrogen relies on green electricity2.绿电越多，并不意味着绿氢会越多，取决于：More green electricity doesnt mean mor

6、e green hydrogen.It depends on whether:绿氢能否解决绿电存储问题Green hydrogen fixes the problems in green electricity storage 灰氢是否需要替代Gray hydrogen needs replacement生物质Biomass未来只有突破了大规模高效生物质制氢和光解水直接制氢，绿氢才可能独立于绿电Only when large-scale hydrogen productions from biomass and by photocatalytic water splitting become