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OPTIMAL DISTRIBUTION OF MULTIFUNCTIONAL CATALYSTS IN A PACKED BED REACTOR

 

作者: J.SCOTT BUCHANAN,   SANKARAN SUNDARESAN,  

 

期刊: Chemical Engineering Communications  (Taylor Available online 1986)
卷期: Volume 40, issue 1-6  

页码: 25-39

 

ISSN:0098-6445

 

年代: 1986

 

DOI:10.1080/00986448608911688

 

出版商: Taylor & Francis Group

 

关键词: Catalyst distribution;Reactor loading;Multifunctional catalysts;Optimization

 

数据来源: Taylor

 

摘要:

The problem of the optimal distribution of two multifunctional catalysts is analyzed. Two methods for obtaining optimal catalyst profiles, an analytic-numeric method and the method of steepest ascent, are compared. Though the analytic-numeric method yields a more accurate solution, the method of steepest ascent is usually easier to apply. Optimal catalyst loading profiles are determined for two cases of commercial interest: selective oxidation of butene and naphtha reforming with bimetallic catalysts- A sequential loading of the bismuth molybdate and the vanadium phosphate catalysis is recommended for low butene concentration levels, while at higher butene levels a mixed loading of the two catalysts may be desirable. For commonly encountered naphtha feedstocks a sequential loading of the Pt-Re and the Pt-Ir catalysts tends to be optimal. These compare well with experimental evidence in the literature.

 

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