Optimal design of an autothermal membrane reactor coupling the dehydrogenation of ethylbenzene to styrene with the hydrogenation of nitrobenzene to aniline

Abo-Ghander, Nabeel S.; Logist, Filip; Grace, John R.; Impe, Jan Van; Elnashaie, S.S.E.H.; Lim, C. Jim

doi:10.1016/j.ces.2010.02.007

Cited by 35 publications

(9 citation statements)

References 31 publications

(36 reference statements)

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“…A typical single membrane-assisted configuration for hydrogen production consists of a concentric three tube reactor: in the inner tube the exothermic reaction occurs, the intermediate channel is employed for the endothermic reaction while the external channel is used for hydrogen recovery since the wall separating the intermediate and the external channel functions as an hydrogen selective membrane [18,[55][56][57][61][62][63][64][65][66][67]. An alternative to this kind of arrangement considers the exothermic and the endothermic reactions in external and intermediate chambers, respectively, and hydrogen recovery from the inner tube [58].…”

Section: Recuperative Coupling Reactors Designmentioning

confidence: 99%

Catalytic Combustion for Supplying Energy for Endothermic Reaction

Vaccaro¹,

Malangone²

2016

J Adv Chem Eng

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Section: Recuperative Coupling Reactors Designmentioning

confidence: 99%

Catalytic Combustion for Supplying Energy for Endothermic Reaction

Vaccaro¹,

Malangone²

2016

J Adv Chem Eng

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“…Bound on the steam-to-nitrobenzene molar ratio is [25]: Bound on the steam-to-nitrobenzene molar ratio is [25]:…”

Section: Objective Function and Constrainsmentioning

confidence: 99%

Differential evolution (DE) strategy for optimization of methane steam reforming and hydrogenation of nitrobenzene in a hydrogen perm-selective membrane thermally coupled reactor

Rahimpour

Aboosadi

Jahanmiri

2012

Int. J. Energy Res.

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SUMMARY In this work, a thermally coupled membrane reactor is proposed for methane steam reforming and hydrogenation of nitrobenzene. The steam reforming process is carried out in the assisted membrane surface of the endothermic side, while the hydrogenation reaction of nitrobenzene to aniline is carried out on the other membrane surface of the exothermic side. The differential evolution (DE) strategy is applied to optimize this reactor considering nitrobenzene and methane conversion as the main objectives. The co‐current mode is investigated in this study, and the achieved optimization results are compared with those of conventional steam reformer reactor operated under the same feed conditions. The optimum values of feed temperature of exothermic side, feed molar flow rate of nitrobenzene, the steam‐to‐nitrobenzene molar ratio and the hydrogen‐to‐nitrobenzene molar ratio are determined during the optimization process. The simulation results show that the methane conversion and consequently hydrogen recovery yield are increased by 39.3% and 1.57, respectively, which contribute to aniline production with 27.3% saving in hydrogen supply from external and a reduction in environmental problems due to 100% nitrobenzene conversion. The optimization results justify the feasibility of coupling these reactions. Experimental proof‐of‐concept is needed to establish the validity and safe operation of the novel reactor. Copyright © 2012 John Wiley & Sons, Ltd.

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“…It is, however, a major challenge at the conceptual design stage to decide when and how to utilize membranes effectively. This has led to significant efforts to computationally predict and improve the MR performance. − While several works exist on MR modeling and optimization, − few have addressed the optimal synthesis of MR configurations. Systematic design and incorporation of MR systems in chemical process flow sheets will increase the possibility of adopting these technologies and further guide experimental synthesis of new membrane materials and modules.…”

Section: Introductionmentioning

confidence: 99%

SPICE_MARS: A Process Synthesis Framework for Membrane-Assisted Reactive Separations

Monjur

Demirel

et al. 2021

Ind. Eng. Chem. Res.

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A membrane reactor (MR) combines reaction and separation phenomena in a single unit and offers an energy-efficient, cost-effective, compact, modular, and sustainable design compared to conventional designs. A systematic design framework can yield such benefits of MRs and increase their adoption in the chemical process industry. To this end, we present SPICE_MARS (synthesis and process intensification of chemical enterprises involving membrane-assisted reactive separations), a software prototype for conceptual design, simulation, synthesis, and optimization of MRs for different process applications. At the conceptual level, we can determine whether MR is desired or not and select which species to convert/separate. At the equipment level, we obtain optimal MR configurations considering different flow arrangements, intensification strategies, membrane types, sweep gases, reactor lengths, membrane areas, and catalyst amounts. Additionally, we can generate rank-ordered lists of optimal reactor configurations for different design objectives. These enabling capabilities are demonstrated using two case studies involving methanol synthesis and methane partial oxidation. In both cases, novel MR designsachieving drastic improvement compared to current industrial practiceare found.

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Optimal design of an autothermal membrane reactor coupling the dehydrogenation of ethylbenzene to styrene with the hydrogenation of nitrobenzene to aniline

Cited by 35 publications

References 31 publications

Catalytic Combustion for Supplying Energy for Endothermic Reaction

Catalytic Combustion for Supplying Energy for Endothermic Reaction

Differential evolution (DE) strategy for optimization of methane steam reforming and hydrogenation of nitrobenzene in a hydrogen perm-selective membrane thermally coupled reactor

SPICE_MARS: A Process Synthesis Framework for Membrane-Assisted Reactive Separations

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