Effect of a large temperature difference and pyrolysis on the heat transfer between a cylinder and transverse gas flows of nitrogen and propane

Mizushina, Tokurō; Ogino, Fumimaru; Matsumoto, Tsunekazu; Ueda, Hiroshi; Kazuyoshi, Baba

doi:10.1016/0017-9310(84)90003-6

Cited by 2 publications

(1 citation statement)

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“…A further increase in temperature from 600 to 750°C caused a decrease in the selectivity. It is well known from unsupported MoVTeNb-based catalysts that particular calcination temperatures have a crucial influence on phase composition and reduction degree of metal ions, which are related to the catalytic performance [19][20][21][22][23][24][25]. Among the mixed MoVTeNbO system catalysts prepared under different calcination temperatures, it shows the highest propane conversion and acrylic acid selectivity at 600°C.…”

Section: 1the Influence Of the Calcination Temperature On Catalytimentioning

confidence: 99%

Effect of Preparation Condition on the Performance of MoVTeNbO Catalyst Materials for Selective Oxidation of Propane into Acrylic Acid

Zheng¹,

Yu²,

Zhang³

et al. 2008

TOMSJ

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Abstract:The effects of chemical composition and preparation conditions, especially calcination atmosphere, water content and oxygen content on the catalytic performances of MoVTeNbO mixed oxide catalyst system for the selective oxidation of propane to acrylic acid have been investigated and discussed. Among the catalysts studied, the Mo 1.0 V 0.3 Te 0.23 Nb 0.12 O catalyst calcined in inert atmosphere under a temperature of 600°C showed the best performance in terms of propane conversion and selectivity to acrylic acid. The results revealed that proper chemical composition, calcination atmosphere, water content and oxygen content affected greatly the catalysts in many ways including structure, chemical composition, which are related to their catalytic performances, the 78% propane conversion and 61% one-pass yield to acrylic acid can be achieved at the same time.

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