Efficient-and-stable CH4 reforming with integrated CO2 capture and utilization using Li4SiO4 sorbent

CO2 capture and utilization has been considered as an up-and-coming short- to mid-term approach mitigate the excessive emission. Comparing conventional separate capture, transportation conversion arrangement, integrated (ICCU) could largely simplify complex process reduce energy consumption. However, poor stability of high-temperature sorption/desorption severely limit potential ICCU. Therefore, it is indispensable develop a new sorbent/catalyst system ensuring high-efficiency long-term operation In this paper, we propose demonstrate feasibility performance using K2CO3-doped Li4SiO4 efficient sorbent for ICCU operating at relatively low temperature by dry reforming methane. Results show that ratio H2/CO produced stabilized 1 ± 0.05 in pre-breakthrough stage, duration extends be 1.6 times original value cyclic operations, displaying excellent reaction matching stability.