Abstract
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.
| Original language | English |
|---|---|
| Article number | 117205 |
| Journal | Applied Catalysis A: General |
| Volume | 589 |
| DOIs | |
| Publication status | Published - 2020 Jan 5 |
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Keywords
- Copper chloride
- Deactivation factor
- Oxychlorination
- Vinyl chloride monomer
ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology
Cite this
Deactivation factor of CuCl2-KCl/Al2O3 catalyst for ethylene oxychlorination in a commercial-scale plant. / Ohashi, Tomokazu; Someya, Sae; Mori, Yoshihiko; Asakawa, Tetsuo; Hanaya, Makoto; Oguri, Motohiro; Watanabe, Ryo; Fukuhara, Choji.
In: Applied Catalysis A: General, Vol. 589, 117205, 05.01.2020.Research output: Contribution to journal › Article
}
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
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
UR - http://www.scopus.com/inward/record.url?scp=85074154877&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85074154877&partnerID=8YFLogxK
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 -