TY - JOUR
AU1 - Yang, Qing
AU2 - Lin, Y. S.
AU3 - Bülow, Martin
AB - A new high temperature sorption process for production of oxygen‐enriched carbon dioxide stream through air separation with carbon dioxide as the purge gas is reported. The process is based on a fixed‐bed packed with a perovskite‐type strontium‐iron doped lanthanum cobaltite, as the sorbent, operated in 500–900°C. Oxygen is adsorbed by the perovskite‐type sorbent with air being fed. An oxygen‐enriched carbon dioxide stream is obtained when the fixed‐bed is regenerated with carbon dioxide as the desorption gas. A specific carbonation‐reaction mechanism for the O2‐desorption process and a complete reverse reaction during the O2‐sorption process are identified with the evidences of XRD and TGA analysis. A study of the sorption process kinetics over a temperature range of 600–800°C was conducted by fixed‐bed sorption/desorption and TGA experiments. Both desorption and sorption processes exhibit a high reaction rate in an initial stage followed by a slower rate in a second stage. A remarkable separation efficiency was observed at 800°C. The new process offers potential for applications in a number of processes including in the efficient and environmentally benign oxyfuel coal combustion process for power generation. © 2005 American Institute of Chemical Engineers AIChE J, 2006
TI - High temperature sorption separation of air for producing oxygen‐enriched CO 2 stream
JF - Aiche Journal
DO - 10.1002/aic.10638
DA - 2006-02-01
UR - https://www.deepdyve.com/lp/wiley/high-temperature-sorption-separation-of-air-for-producing-oxygen-jQrUNimCK7
SP - 574
EP - 581
VL - 52
IS - 2
DP - DeepDyve
ER -