Modeling of a novel membrane reactor to integrate dehydrogenation of ethylbenzene to styrene with hydrogenation of nitrobenzene to aniline

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

“…In these reactors, the reaction of interest is promoted by hydrogen-selective membrane walls which remove hydrogen from the reaction chamber to a separate compartment where hydrogen is either extracted by a sweep gas (Abdalla and Elnashaie, 1993, Abdalla and Elnashaie, 1994, Abdalla and Elnashaie, 1995, Hermann et al 1997 or reacted separately to generate another useful product , Abo-Ghander et al 2008. The enhancements in conversion of ethylbenzene and yield of styrene were predicted to be considerable.…”

“…The enhancements in conversion of ethylbenzene and yield of styrene were predicted to be considerable. Among these possible membrane reactors, the configuration proposed by Abo-Ghander et al (2008) is Postprint version of paper published in Chemical Engineering Science 2010, vol 65, pages 3113-3127. The content is identical to the published paper, but without the final typesetting by the publisher.…”

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Abstract:Coupling the dehydrogenation of ethylbenzene to styrene with the hydrogenation of nitrobenzene to aniline in a catalytic fixed bed membrane reactor has the potential for significantly improving both processes (Abo-Ghander et al 2008). In a continuing effort to realize this potential, an optimal design is sought for a co-current flow, catalytic membrane reactor configuration.

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Mathematical Modeling of an Integrated Membrane Reactor for Methane Steam Reforming

“…However, the existing models are one dimensional, so they are not capable to describe the heat and mass transfer processes inside the reactor [50,54,55,56,57,58,59]. In addition, this kind of model, are not able to study the influence of the structural and textural properties of membrane on the system [60]. Membrane reactors show radial concentration and temperature gradients, due to the mass and heat transfer through the membrane, so bi-dimensional models are more accurate [61,62,63,64,65].…”

Design and Control of Integrated Styrene-Aniline Production Plant

“…As a result, energy savings and reduced reactor size can be achieved. Some examples demonstrating the effectiveness of this idea are in situ hydrogen combustion in oxidative dehydrogenation (Grasselli et al, 1999); coupling propane combustion and endothermic thermal cracking of propane to ethylene and propylene (Chaudhary et al, 2000); coupling methane steam reforming with catalytic oxidation of methane in partial oxidation reactors (Hickman and Schmidt); coupling ethylbenzene dehydrogenation with water-gas shift, CO2 methanation and nitrobenzene hydrogenation (Qin et al, 2003, Abo-Ghander et al, 2008.…”