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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Absence of evidence is not evidence of absence: Multiple steady states in ammonia synthesis
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Absence of evidence is not evidence of absence: Multiple steady states in ammonia synthesis

机译：缺乏证据的证据并不是缺乏:在氨合成多个稳定状态

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摘要

Using a chemical reaction network (CRN) Theory approach, three well-accepted mechanisms of ammonia synthesis over iron catalyst taking place within an isothermal Continuous Flow Stirred Tank Reactor (CFSTR) are analyzed. Together with its deficiency analysis, the CRN Theory provides a suitable framework to assert whether a particular reaction network has the capacity to support multiple steady states using the reaction mechanism structure alone. Through deficiency analysis, we argued that the presence of two surface catalytic sites during absorption-desorption of nitrogen (microscale) is causative of bistability (macroscale) in two of the three ammonia synthesis mechanisms here considered. (C) 2016 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
机译：使用化学反应网络(CRN)理论方法,三个广为接受的机制氨合成铁催化剂在一个等温连续流搅拌釜反应堆(CFSTR)进行了分析。缺乏分析,CRN理论提供了一个合适的维护是否一个特定的框架反应网络有能力支持使用反应多个稳定状态机制结构。分析,我们认为存在两种表面催化网站在absorption-desorption氮(微尺度)使役动词的双稳态(大规模)中的两个三氨合成机制考虑。工程师。保留。

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