Attainable regions of reactive distillation—Part III. Complex reaction scheme: Van de Vusse reaction

In this manuscript, a two-input two-output (TITO) control strategy for an exothermic continuous chemical reactor is presented. The control tasks of the continuous chemical reactor are related to temperature regulation by a standard proportional-integral (PI) controller. The selected set point increases reactor productivity due to the temperature effect and prevents potential thermal runaway, and the temperature increases until it reaches isothermal operating conditions. Then, an optimal controller is activated to increase the mass reactor productivity. The optimal control strategy is based on a Euler-Lagrange framework, in which the corresponding Lagrangian is based on the model equations of the reactor, and the optimal controller is coupled with an uncertainty estimator to infer the unknown terms required by the proposed controller. As a benchmark, a continuous stirred tank reactor (CSTR) with a Van de Vusse chemical reaction is considered as an application case study. Notably, the proposed methodology is generally applicable to any continuous stirred tank reactor. The results of numerical experiments verify the satisfactory performance of the proposed control strategy.

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“…As an application case study, let us consider the following chemical pathway from the Van de Vusse reaction [42]:…”

Section: Mathematical Model Of a Continuous Stirred Tank Reactor(cstr)mentioning

confidence: 99%

“…By substituting (42) into Equation (41) and considering the above assumption of y = x, the following is obtained:˙f…”

Section: Uncertainty Estimator Designmentioning

confidence: 99%

A TITO Control Strategy to Increase Productivity in Uncertain Exothermic Continuous Chemical Reactors

2021

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“…The selection of type of reactive distillation column for selectivity engineering (i.e. simple or complex RD column, hybrid or fully reactive column) strongly depends on the volatility of reactants and on the number of products that undergo further side reactions in a given complex reaction scheme, which is evident from our previous work [1][2][3][4][5][6][7][8][9]. It is for this reason that a unified generalized theoretical that will encompass any given scheme, though useful, may be difficult to develop at this stage.…”

Section: Introductionmentioning

confidence: 97%

“…This is illustrated with the help of a commercially important process of transesterification of dimethyl carbonate with ethanol. We would like to note here that in our previous [1][2][3][4][5][6][7][8][9] work we introduced different RD models in order to obtain higher or desired selectivity in case of different types of complex reaction schemes. The overall objective is to develop a complete algorithm that is applicable for a wider range of reaction networks and suggest general norms that can serve as a ready reference for process designers.…”

Section: Introductionmentioning

confidence: 99%

“…The development of a systematic design procedure for reactive distillation columns to obtain higher or desired selectivity in case of simple and complex reaction schemes has been the theme of our work published in the past [2][3][4][5][6][7][8][9]. If the reactant is unstable or stable node in the corresponding residue curve map then the simple configurations such as reactive rectification or reactive stripping can be used.…”

Section: Introductionmentioning

confidence: 99%

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