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Hydration of α‐Pinene over SO 4 2− /Zr‐MCM‐41 in Supercritical Carbon Dioxide
Author(s) -
Zhang Huimin,
Yu Shitao
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201900071
Subject(s) - calcination , supercritical fluid , mcm 41 , molecular sieve , catalysis , mesoporous material , carbon dioxide , supercritical carbon dioxide , chemical engineering , materials science , selectivity , chemistry , inorganic chemistry , organic chemistry , engineering
The hydration of α‐Pinene to α‐Terpineol was studied using SO 4 2− /Zr‐MCM‐41 mesoporous molecular sieves as catalysts in supercritical carbon dioxide (scCO 2 ). The reaction results showed SO 4 2− /Zr‐MCM‐41 was of better selectivity to the α‐Terpineol in scCO 2 than in conventional conditions, and was of the same catalytic activities in scCO 2 and in conventional conditions. The effect of some factors on the catalytic activities and the regenerable performance of SO 4 2− /Zr‐MCM‐41, such as different Zr source, the method of introducing SO 4 2− , the concentration of SO 4 2− , calcination temperature and calcination time, were studied. These results showed the cooperation of Zr and SO 4 2− was the main reason that SO 4 2− /Zr‐MCM‐41 was of excellent catalytic activity, and Zr(SO 4 ) 2 , as the Zr source, was active for the regenerable performance of SO 4 2− /Zr‐MCM‐41.