Solid oxide fuel cell (SOFC) is an advanced power generation equipment that directly converts chemical energy into electrical energy. It has high power generation efficiency (its own power generation efficiency is close to 60%, the combined efficiency of hot gas turbine can reach more than 80%), high cogeneration efficiency (waste heat temperature is 400 ℃-600 ℃, cogeneration efficiency is more than 90%), water resources saving (2% of the water consumption of traditional power generation), green environmental protection, easy modular assembly, wide range of fuel selection (natural gas, coal gas, biomass gas, methanol, etc. can be used), precious metal catalyst is not required, and adaptability is strong, it is a kind of fuel cell with high application prospect.