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Recent Advances of Oxygen Carriers for Chemical Looping Reforming of Methane
Author(s) -
Tian Ming,
Wang Chaojie,
Han Yujia,
Wang Xiaodong
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202001481
Subject(s) - chemical looping combustion , syngas , methane , catalysis , oxygen , chemistry , carbon dioxide reforming , nanotechnology , materials science , organic chemistry
This review discussed recent advances of oxygen carriers (OCs) for chemical looping reforming (CLR) of CH 4 which aims to generate high‐quality syngas, an important chemical intermediate for the synthesis of chemicals and fuels. We firstly introduced CLR and that combined with CO 2 and H 2 O splitting as well as clarified their advantages over conventional reforming processes. Then we reviewed the latest advances of metal‐based OCs, composite OCs including perovskites and hexaaluminates, and catalytic OCs, namely oxygen‐containing materials with catalytically metal sites, during the past five years. Specific discussion focused on the influence of composition, surface, and bulk structure of these OCs on conversion, selectivity, and lattice oxygen reactivity to summarize design and optimization strategies of the tailored OCs. Finally, a brief summary and an outlook on some of the scientific challenges and suggestions for future investigations on the development of outstanding OCs for CLR of CH 4 are given.