The first coal-based solid oxide fuel power battery demonstration project was put into operation

On August 2, the Coal Chemical Research Institute of Jinmei Group announced to the public that their first 15kW solid oxide fuel power cell (SOFC) project with coal as raw material was built in the fuel power cell of Jinmei Group Tianxi Coal-to-Liquid Branch Company. The laboratory opened up the whole process, and realized the engineering demonstration of coal gasification and power generation through solid oxide fuel power cell. The project is a key scientific and technological project in Shanxi Province-a demonstration project for the development of key technologies and equipment for carbon fuel power batteries. The project technology is jointly organized by the Coal Chemical Research Institute of Jinmei Group, Tsinghua University, my country University of Mining and Technology (Beijing), and Suzhou Huaqing. Development. The project leader and deputy chief engineer of Jinmei Group Fu Junqing analyzed that this 15kW solid oxide fuel power cell device is the first domestic system to achieve industrial operation. Its successful operation marks my country’s 10kW level of power generation in the field of carbon fuel power cell technology. A big step has been taken in the development of the system, laying the foundation for the large-scale use of megawatts. Fuel power battery is the core of the 'hydrogen economy'. Fuel power battery power generation technology has the characteristics of high efficiency and cleanliness. It can not only provide technical reserves for hydrogen energy development, but also avoid new ways for the efficient use of low-grade coalbed methane. 'The project has realized the integration of the power generation system from powder material-single cell-stack-power generation system. It has successively built kW-level power generation system, 5kW system performance detection equipment, 5kW power generation system and 15kW power generation system, and finally used Tianxi Company's synthesis Su Chunsheng, a member of the project team and the director engineer of the Coal Chemical Research Institute of Jinmei Group, said that the project team has mastered the low-cost, high-performance solid oxide fuel power cell single cell preparation technology, carbon-based fuel Power generation module integration and stable operation technology; studied the high-temperature reaction process between high-temperature CO2 and solid carbon, mastered the continuous fuel delivery and heat balance management technology; built the exhaust gas solution burner, mastered the exhaust gas combustion technology; mastered the various units Matching connection between the two and the connected operation technology of the overall system. The theoretical calculation result states that the overall power generation efficiency, carbon conversion rate and CO2 capture rate of the system can meet the design requirements. Solid oxide fuel power cells have high current density and power density, carry out chemical reactions at high temperatures, and have internal reforming capabilities, which can significantly extend their service life. The battery materials are all made of domestic materials. Among them, the electrode materials use my country's abundant rare earth materials, which are relatively low in cost; the electrolyte is solid, which prevents the evaporation and leakage of the electrolyte; the sealing material uses the glass ceramic material independently developed by Jinmei Group. In the next step, the project team will further optimize the related components and structure of the stack, reduce the attenuation rate and increase the number of cycles of the stack, in order to achieve a longer period of operation. Linked fuel power cell is a power generation device that directly converts chemical energy stored in fuel and oxidant into electrical energy. Compared with the conversion of traditional power generation from chemical energy-internal energy-mechanical energy-electrical energy, the device can achieve one step from chemical energy to electrical energy. The energy conversion efficiency can reach 60% to 80%, and the actual use efficiency is 2 to 3 times that of a general internal combustion engine. . Fuel power batteries can make up for the shortcomings of wind power, photovoltaic power generation, and hydropower. my country also attaches great importance to the development of fuel power batteries and has issued a series of subsidy policies for fuel power batteries. At present, significant progress has been made in the research and development of fuel power cell technology, and the technology has gradually matured. As a major coal province in the country, Shanxi Province has formed a high energy consumption, heavily polluted energy structure and extensive processing and management methods over the years, which have caused serious ecological damage and environmental pollution. Therefore, promoting the upgrading of energy structure and accelerating the development of green industries are the inevitable choices of Shanxi Province, and the development of fuel power cell technology will be one of the most effective ways.