Stable and active monolithic palladium catalyst for catalytic oxidation of methane using nanozeolite silicalite-1 coating on cordierite

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• 作者：Chao Xiao ; ^{xiaochao@caep.cn} ; Yong Yang ; Dan Meng ; Lan Dong ; Lili Luo ; Zhaoyi Tan
• 关键词：Cordierite monolith ; Catalytic methane combustion/oxidation ; Steam-assisted crystallization ; Pd/silicalite-1
• 刊名：Applied Catalysis A: General
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：531
• 期：Complete
• 页码：197-202
• 全文大小：1397 K
• 卷排序：531

文摘

Sucrose-modified SAC produced mesoporous nanozeolite silicalite-1 coating on cordierite with high crystallinity and mechanical stability. Addition of 4 mol% of sucrose to the SAC system reduces the silicalite-1 crystal size from 2–8 μm to 200–250 nm. The Pd catalyst supported on the silicate-1 coated monolith exhibits CH4 conversion >99.4% after 72 h time-on-stream at 450 °C. The T50 and T90 were 286° C and 347 °C, respectively and complete conversion of CH4 was achieved at about 400 °C.