Rigorous design of multiphase reactors: Identification of optimal conditions for mass transfer limited reactions

Xie, Mingquan; Freund, Hannsjörg

doi:10.1016/j.cep.2017.11.012

Cited by 7 publications

(1 citation statement)

References 48 publications

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“…The majority of the work in the literature, however, addresses only the problem of continuous-flow reactor networks. After selecting the continuous-flow operating mode, the attainable region method, − superstructure optimization, − stochastic optimization, , and dynamic optimization − have been used to arrive at the optimal reactor network and/or the optimal process. Note that some of the referenced literature merges several of the aforementioned categories and may focus only on the reactor or on the full process synthesis problem.…”

Section: Introductionmentioning

confidence: 99%

A Unified Reactor Network Synthesis Framework for Simultaneous Consideration of Batch and Continuous-Flow Reactor Alternatives

Costandy

Edgar

Bâldea

2021

Ind. Eng. Chem. Res.

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Determining the optimal operating mode (batch or continuous-flow) for chemical manufacturing remains a pressing open problem. Focusing on reactors, an accurate determination must account for fundamental differences between operating modes, the size and cost of the respective reactor units, and the potential of utilizing reactor networks to optimize performance. We present a reactor network synthesis framework that simultaneously considers batch and continuous-flow options while accounting for all the aforementioned factors. We introduce a non-dimensional model structure that encompasses all operating mode options, and its discretized representation, the orthogonal collocation on finite elements for reactors (OCFERE). This allows us to formulate a unified economic model and a framework for optimal reactor network synthesis. An illustrative case study is also provided.

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Section: Introductionmentioning

confidence: 99%

A Unified Reactor Network Synthesis Framework for Simultaneous Consideration of Batch and Continuous-Flow Reactor Alternatives

Costandy

Edgar

Bâldea

2021

Ind. Eng. Chem. Res.

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Systematic model‐based design of tolerant chemical reactors

Maußner

Dreiser

Wachsen

et al. 2019

J Adv Manuf & Process

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With the raw material and energy transition to biomass‐based feedstocks and renewable energy sources, flexible chemical reactor designs which are capable of converting more than one feedstock will become increasingly important in the chemical industry. In the present work, we refer to chemical reactors which can convert multiple different feedstocks to a desired product with a high and consistent quality as tolerant chemical reactors and propose a systematic model‐based design strategy. The proposed design approach is based on the concept of elementary process functions and the so‐called multilevel reactor design (MLRD) methodology. We use a multiscenario formulation to consider different possible feedstock scenarios and formulate a general multi‐objective dynamic optimization problem that is solved using the direct transcription approach in combination with a scalarization method such as, for example, the normal boundary intersection method or the normalized normal constraint method. The proposed approach is illustrated on the synthesis of maleic anhydride from different n‐butenes and n‐butane feedstocks. The resulting segmented fixed‐bed reactor concept is capable of converting the different feedstocks to maleic anhydride while satisfying additional performance and safety constraints. The results highlight the potential of the proposed design approach.

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A multimodular pseudoheterogeneous model framework for optimal design of catalytic reactors exemplified by methanol synthesis

Kaiser

Freund

2019

Chemical Engineering Science

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Rigorous design of multiphase reactors: Identification of optimal conditions for mass transfer limited reactions

Cited by 7 publications

References 48 publications

A Unified Reactor Network Synthesis Framework for Simultaneous Consideration of Batch and Continuous-Flow Reactor Alternatives

A Unified Reactor Network Synthesis Framework for Simultaneous Consideration of Batch and Continuous-Flow Reactor Alternatives

Systematic model‐based design of tolerant chemical reactors

A multimodular pseudoheterogeneous model framework for optimal design of catalytic reactors exemplified by methanol synthesis

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