Premium
CO 2 Reduction to Methanol in the Liquid Phase: A Review
Author(s) -
Xie Shaoqu,
Zhang Wanli,
Lan Xingying,
Lin Hongfei
Publication year - 2020
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.202002087
Subject(s) - methanol , carbon dioxide , renewable energy , carbon fibers , catalysis , greenhouse gas , exothermic reaction , chemistry , hydrogen , chemical engineering , materials science , organic chemistry , ecology , composite number , electrical engineering , composite material , biology , engineering
Excessive carbon dioxide (CO 2 ) emissions have been subject to extensive attention globally, since an enhanced greenhouse effect (global warming) owing to a high CO 2 concentration in the atmosphere could lead to severe climate change. The use of solar energy and other renewable energy to produce low‐cost hydrogen, which is used to reduce CO 2 to produce bulk chemicals such as methanol, is a sustainable strategy for reducing carbon dioxide emissions and carbon resources. CO 2 conversion into methanol is exothermic, so that low temperature and high pressure are favorable for methanol formation. CO 2 is usually captured and recovered in the liquid phase. Herein, the emerging technologies for the hydrogenation of CO 2 to methanol in the condensed phase are reviewed. The development of homogeneous and heterogeneous catalysts for this important hydrogenation reaction is summarized. Finally, mechanistic insight on CO 2 ’s conversion into methanol over different catalysts is discussed by taking the available reaction pathways into account.