Analysis and Optimization of a CSTR by Direct Entropy Minimization

• Manzi Joao

  Department of Chemistry, Catholic University of Pernambuco

• Carrazzoni Ed

  Department of Chemistry, Catholic University of Pernambuco

抄録

Determination of optimal operating conditions of chemical processes is difficult. Minimization of entropy generation is a simpler option for standard, either numerical or analytical, optimization techniques. This paper illustrates how entropy generation minimization can simplify the analysis and optimization of the operation of a CSTR. A typical irreversible, exothermic, first order chemical reaction taken from the literature has been considered. For this system, the entropy generation rate has been derived based on mass, energy and entropy balances. Using analytical derivatives it was found that entropy generation can be minimized if the inlet stream temperature is the same as the operating temperature of the reactor. Additionally, it was easy to draw from the analysis the operating temperature that achieved maximum conversion. Finally, the procedure proposed was compared with an indirect entropy minimization method, and shown to be simpler and clearer.

収録刊行物

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 41 (3), 194-199, 2008

  公益社団法人 化学工学会

キーワード

• Reactor Analysis
• Modeling
• Operating Conditions
• Entropy

詳細情報

• CRID: 1390282679546309632
• NII論文ID: 10021109872
• NII書誌ID: AA00709658
• DOI: 10.1252/jcej.07we187
• ISSN: 18811299
• ISSN: 00219592
• NDL書誌ID: 9425285
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9425285
• Web Site: http://www.jstage.jst.go.jp/article/jcej/41/3/41_07WE187/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可