TY - JOUR
T1 - Deactivation factor of CuCl2-KCl/Al2O3 catalyst for ethylene oxychlorination in a commercial-scale plant
AU - Ohashi, Tomokazu
AU - Someya, Sae
AU - Mori, Yoshihiko
AU - Asakawa, Tetsuo
AU - Hanaya, Makoto
AU - Oguri, Motohiro
AU - Watanabe, Ryo
AU - Fukuhara, Choji
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/1/5
Y1 - 2020/1/5
N2 - Ethylene oxychlorination over a CuCl2-KCl/Al2O3 catalyst was examined for 2 consecutive years in a commercial-scale plant. The oxychlorination performance of the CuCl2-KCl/Al2O3 catalyst deteriorated gradually, which could seriously affect stable operation. To clarify such deactivation factors, the relationship between catalyst performance and physicochemical property change was investigated using X-ray fluorescence, electron probe microanalysis, and Brunauer–Emmett–Teller measurements. Sublimation of the CuCl component and subsequent increment of the ratio of K to Cu components were observed at the inlet of the catalyst bed, and were determined to be contributing factors in the deactivation of the CuCl2-KCl/Al2O3 catalyst.
AB - Ethylene oxychlorination over a CuCl2-KCl/Al2O3 catalyst was examined for 2 consecutive years in a commercial-scale plant. The oxychlorination performance of the CuCl2-KCl/Al2O3 catalyst deteriorated gradually, which could seriously affect stable operation. To clarify such deactivation factors, the relationship between catalyst performance and physicochemical property change was investigated using X-ray fluorescence, electron probe microanalysis, and Brunauer–Emmett–Teller measurements. Sublimation of the CuCl component and subsequent increment of the ratio of K to Cu components were observed at the inlet of the catalyst bed, and were determined to be contributing factors in the deactivation of the CuCl2-KCl/Al2O3 catalyst.
KW - Copper chloride
KW - Deactivation factor
KW - Oxychlorination
KW - Vinyl chloride monomer
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U2 - 10.1016/j.apcata.2019.117205
DO - 10.1016/j.apcata.2019.117205
M3 - Article
AN - SCOPUS:85074154877
VL - 589
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
SN - 0926-860X
M1 - 117205
ER -