引用本文:
宋焕玲, 陈革新, 刘俊声, 李梅, 罗淑文, 李贵毓. 水蒸汽对Mn-Na2WO4/SiO2催化剂上乙烷氧化脱氢的影响[J]. 应用化学,
2000, 17(3): 284-287.
Citation: SONG Huan-Ling, CHEN Ge-Xin, LIU Jun-Sheng, LI Mei, LUO Shu-Wen, LI Gui-Yu. Influence of Vapor on Ethane Oxidative Dehydrogenation over Mn-Na2WO4/SiO2 Catalyst[J]. Chinese Journal of Applied Chemistry, 2000, 17(3): 284-287.
Citation: SONG Huan-Ling, CHEN Ge-Xin, LIU Jun-Sheng, LI Mei, LUO Shu-Wen, LI Gui-Yu. Influence of Vapor on Ethane Oxidative Dehydrogenation over Mn-Na2WO4/SiO2 Catalyst[J]. Chinese Journal of Applied Chemistry, 2000, 17(3): 284-287.
水蒸汽对Mn-Na2WO4/SiO2催化剂上乙烷氧化脱氢的影响
English
Influence of Vapor on Ethane Oxidative Dehydrogenation over Mn-Na2WO4/SiO2 Catalyst
Abstract:
The influences of vapor on the oxidative dehydrogenation of ethane(ODHE) to ethylene over promoted Mn-Na2WO4/SiO2 catalyst have been investigated. The results indi cate that the presence of vapor is favorable for catalyst to increase the ethylene selectivity. Ethylene in yield up to 52% is obtained under conditions of: V (C2H6): V (O2): V (H2O, g)= 1:0.65:3.8, GHSV=1600 h-1, 740℃ with 10 mL catalyst. Excess vapor caused the catalyst selectivity to be decreased. The results are discussed in terms of destruction of W-O-Si species and phase transformation based on the XRD and XPS measurements.
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Key words:
- Na2WO4
- / Mn2O3
- / ethane
- / oxidative dehydrogenation
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