Development of catalytic combustion and CO2 capture and conversion technology
Zhibin Yang, Ze Lei, Ben Ge, Xingyu Xiong, Yiqian Jin, Kui Jiao, Fanglin Chen, Suping Peng
Abstract
Abstract Changes are needed to improve the efficiency and lower the CO 2 emissions of traditional coal-fired power generation, which is the main source of global CO 2 emissions. The integrated gasification fuel cell (IGFC) process, which combines coal gasification and high-temperature fuel cells, was proposed in 2017 to improve the efficiency of coal-based power generation and reduce CO 2 emissions. Supported by the National Key R&D Program of China, the IGFC for near-zero CO 2 emissions program was enacted with the goal of achieving near-zero CO 2 emissions based on (1) catalytic combustion of the flue gas from solid oxide fuel cell (SOFC) stacks and (2) CO 2 conversion using solid oxide electrolysis cells (SOECs). In this work, we investigated a kW-level catalytic combustion burner and SOEC stack, evaluated the electrochemical performance of the SOEC stack in H 2 O electrolysis and H 2 O/CO 2 co-electrolysis, and established a multi-scale and multi-physical coupling simulation model of SOFCs and SOECs. The process developed in this work paves the way for the demonstration and deployment of IGFC technology in the future.