Synergies of Mn oxidative ability and ZSM-5 acidity for 1, 2-dichloroethane catalytic elimination
Synergies of Mn oxidative ability and ZSM-5 acidity for 1, 2-dichloroethane catalytic elimination
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Mn氧化能力和ZSM-5酸性对1, 2-二氯乙烷催化消除的协同作用
DOI:
10.1016/j.apcatb.2020.118922
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发表时间:
2020-11
期刊:
影响因子:
--
通讯作者:
Ying Wei
中科院分区:
文献类型:
--
作者:
Hao Wang;Bo Peng;Runduo Zhang;Hongxia Chen;Ying Wei
Four kinds of ZSM-5, γ-Al2O3, and commercial SiO2loaded with 1 wt% Mn were prepared for selective catalytic oxidation of 1,2-dichloroethane. The 1 Mn/ZSM-5-27 (SiO2/Al2O3= 27) catalyst showed the lowest T90of 248 °C and the highest selectivities to HCl (67 %) and CO2(31 %). By varying the Mn loading, it was found that 10 Mn/ZSM-5-27 exhibits the best performance owing to its suitable redox property associated with its high acidity. The formation of carbonaceous species, organic chloride, and metallic chlorine oxide (MnOxCly) on the surface is responsible for deactivation. The mechanism of catalytic oxidation of 1,2-dichloroethane was studied by in situ DRIFTS and GC–MS. Chloroethanol and vinyl alcohol were found to be the vital intermediates. Additionally, vinyl chloride can easily be attacked by chlorine radical to produce several kinds of undesirable polychlorinated ethylenes (C2HxCl4-x).
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影响因子:
11.4
作者:
Pan, Hua;Jian, Yanfei;Liu, Hongxia
通讯作者:
Liu, Hongxia
DOI:
10.1016/j.apcatb.2018.07.061
发表时间:
2018-12
期刊:
Applied Catalysis B: Environmental
影响因子:
--
作者:
Peng Yang;Shaokang Fan;Zhenyang Chen;Guofang Bao;Shufeng Zuo;Chenze Qi
通讯作者:
Chenze Qi
影响因子:
8.8
作者:
T. Sakurai;R. Weber;S. Ueno;J. Nishino;Masaru Tanaka
通讯作者:
T. Sakurai;R. Weber;S. Ueno;J. Nishino;Masaru Tanaka
影响因子:
22.1
作者:
Zhang Chuanhui;Guo Yanglong;Giroir-Fendler Anne
通讯作者:
Giroir-Fendler Anne
影响因子:
3.8
作者:
Vennila, P.;Govindaraju, M.;Kamal, C.
通讯作者:
Kamal, C.