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Instability of CSTR due to Chemical Chaos.

Research Project

Project/Area Number 02805119
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 化学工学
Research InstitutionKobe University

Principal Investigator

KATAOKA Kunio  Kobe Univ., Dept. of Chem. Eng., Professor, 工学部, 教授 (20031081)

Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1991: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1990: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsChemical Chaos / CSTR / Belousov-Zhabotinskii reaction / Instability / 反応器不安定性
Research Abstract

The objective of this project is to elucidate the mechanism for the bifurcation of chemical oscillations of B-Z reaction in relation with the instability of CSTR operation. Fe^<2+>-Fe^<3+> system as well as Ce^<3+>-Ce ^<4+> system are used as the metal catalyst. The residence time T was varied mainly as the bifurcation parameter. The volumetric capacity of the CSTR used is 30 ml. When T is sufficiently large, there do not appear any chemical oscillations owing to chemical equilibrium. On the other hand, there do not occur any oscillations owing to dynamical equilibrium of CSTR. At T = 21.7 min, there appear mixed oscillations with two different amplitudes. At T = 21.4 min, there does appear chemical chaos. At T = 16.0 min, however, there appear single-peak periodic oscillations again, which have a limit cycle trajectrory in phase space. At T 7.75 min, there appear regular oscillations, which have 8-shaped attractor in phase space. The time period of the oscillations tends to be lengthened with decreasing the residence time. The time period and amplitude tend to increase with increasing the feed concentration of bromide ion and with decreasing the feed concentration of malonic acid.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (7 results)

All Other

All Publications (7 results)

  • [Publications] K.Kataoka,N.Ohmura,Y.Miyakawa,S.Watanabe,K.Sumida and S.Deki: "Chemical oscillations in CSTR of Belousov-Zhabotinskii reaction with ferroin-ferriin catalytic system." J.of Chemical Engineering of Japan. 1. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K.Kataoka,Y.Miyakawa,S.Watanabe,N.Ohmura,T.Yoshimura & S.Deki: "Experimental study on instability of Belousov-Zhabotinskii reaction in CSTR." Proc.of China-Japan Chemical Engineering Coference (CJCHhEC'91),Oct.24-26,Tianjin/China. 1. 378-384 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Kataoka, N. Ohmura, Y. Miyakawa, S. Watanabe, K. Sumida and S. Deki: "Chemical Oscillations in CSTR of Belousov-Zhabotinskii Reaction with Ferroin-Ferriin Catalytic System." J. Chem. Eng. Japan. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Kataoka, Y. Miyakawa, S. Watanabe, N. Ohmura, T. Yoshimura and S. Deki: "Experimental Study on Instability of Belousov-Zhabotinskii Reaction in CSTR." Proc. of China Japan Chemical Engineering Conference (CJChEC'91). 1. 378-384 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K.Kataoka,N.Ohmura,Y.Miyakawa,S.Watanabe,K.Sumida and S.Deki: "Chemical oscillations in CSTR of BelousovーZhabotinskii reaction with ferroinーferriin catalytic system." J.of Chemical Engineering of Japan. 1. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Kataoka,Y.Miyakawa,S.Watanabe,N.Ohmura,T.Yoshimura ε S.Deki: "Experimental Study on instability of BelousovーZhabotinskii reaction in CSTR." Proc.of ChinaーJapan Chemical Engineering Conference(CJChEc'91),Oct.24ー26,Tianjin/China. 1. 378-384 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Kataoka,Y.Miyakawa,S.Watanabe,N,Ohmura,T.Yoshimura & S.Deki: "Experimental study on instability of BelouzovーZhabotinskii reaction in CSTR." Proc.of ChinaーJapan Chemical Engineering Conference (CJChEC'91). (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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