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Methanol Synthesis by CO 2 Hydrogenation over Cu/ZnO/Al 2 O 3 Catalysts under Fluctuating Conditions
Author(s) -
Zurbel Alexander,
Kraft Michael,
KavurucuSchubert Sena,
Bertau Martin
Publication year - 2018
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201700141
Subject(s) - catalysis , methanol , electrolysis , chemical engineering , syngas , selectivity , bar (unit) , materials science , chemistry , inorganic chemistry , organic chemistry , electrode , physics , meteorology , engineering , electrolyte
Methanol synthesis through CO 2 hydrogenation under fluctuating conditions was investigated over a CuO/ZnO/Al 2 O 3 catalyst in an integral reactor. The performance of the catalyst was examined under stable conditions at 563 K and 80 bar. For dynamic experiments, the H 2 /CO 2 ratio of the feed gas was changed sequentially. Although the activity and selectivity towards methanol of the catalyst was affected more under dynamic conditions, long‐term stability of the synthesis process was not influenced. The results show that it is possible to operate methanol synthesis with a fluctuating feed gas composition, as it is the case when CO 2 is captured from a power plant and H 2 from an electrolysis unit driven by a regenerative energy source, such as solar or wind power.