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Yang CY, Chien YS, Chou JH, Li HY, Hsieh CW. Application of Cholette’s model in non-ideal mixing CSTR: a simulation study on dynamic behavior. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2021. [DOI: 10.1515/ijcre-2020-0197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Non-ideal mixing phenomena are widely found in industrial chemical reactors. In this work we derived the bifurcation formulas for a non-adiabatic CSTR with an irreversible exothermic first order reaction with the non-ideal mixing effect. This is investigated via dynamic behavior simulations based on Chollete’s model. The results show that the non-ideal mixing parameter n (the fraction of the feed entering the perfect mixing zone) determines the variation between six classified regions and dominates the dynamic behavior patterns in the steady-state response diagram. On the other hand, the phase portraits of examples verify the formulas derived in this work. We note that the non-ideal mixing effect has significant importance in CSTR design and control steps. For example, in the safe operating region for an ideal mixing CSTR, non-linear dynamics are obtained by the system under non-ideal mixing conditions (n ≠ 1). The present study has significance and help for chemical reactor design and CSTR control.
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Affiliation(s)
- Chane-Yuan Yang
- Department of Chemical and Material Engineering , National Chin-Yi University of Technology , Taichung , 411 , Taiwan, R.O.C
| | - Yu-Shu Chien
- Department of Chemical and Material Engineering , National Chin-Yi University of Technology , Taichung , 411 , Taiwan, R.O.C
| | - Jun-Hong Chou
- Department of Chemical and Material Engineering , National Chin-Yi University of Technology , Taichung , 411 , Taiwan, R.O.C
| | - Hsing-Ya Li
- Department of Chemical Engineering , National United University , Miaoli , 360 , Taiwan, R.O.C
| | - Chau Wei Hsieh
- Department of Chemical Engineering , National Chung Hsing University , Taichung , 402 , Taiwan, R.O.C
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