Modeling of Membrane Reactors

Mangold, Michael; Schmidt, Jürgen; Tobiska, Lutz; Tsotsas, Evangelos

doi:10.1002/9783527629725.ch2

Cited by 3 publications

(5 citation statements)

References 55 publications

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“…In the literature, most of the modeling studies on the packed-bed MR assume that the gas and solid phases are one equivalent phase in the quasi-homogeneous modeling approach, which is then arranged with the porosity and effective transport coefficients to distinguish gas and solid phases. 79 Nevertheless, all the balance equations, which are mass, energy, momentum, and transport of species, must be considered for each phase separately. The heterogeneous model equations for the gas and solid phases are given in Table 6.…”

Section: Modeling Approaches Based On Different Continuum Modelsmentioning

confidence: 99%

“…T A B L E 6 Heterogeneous model equations involving both gas and solid phases (Adapted from Mangold et al 79 )…”

Section: Modeling Approaches Based On Different Continuum Modelsmentioning

confidence: 99%

“…More clearly, on the reaction side, the feed gas and the catalyst providing the reactions cause the formation of both gas and solid phases, and thus the solution of the problems involving these phases is more expensive and requires time. In the literature, most of the modeling studies on the packed‐bed MR assume that the gas and solid phases are one equivalent phase in the quasi‐homogeneous modeling approach, which is then arranged with the porosity and effective transport coefficients to distinguish gas and solid phases 79 . Nevertheless, all the balance equations, which are mass, energy, momentum, and transport of species, must be considered for each phase separately.…”

Section: Modeling Approaches For the Mrsmentioning

confidence: 99%

“…The superscripts and subscripts, Diff, f, g, i, s, and *, are defined as the molecular diffusion, fluid, gas, component index, solid, and partial, respectively. The detailed calculations of these terms can be found in the study of Mangold et al 79 Different continuum models for MRs in the literature are summarized according to their dimensions and balance equations in Table 7.…”

Section: Modeling Approaches For the Mrsmentioning

confidence: 99%

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A review on mathematical modeling of packed bed membrane reactors for hydrogen production from methane

Atak

Çolpan

Iulianelli

2021

Intl J of Energy Research

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The most widely used process for hydrogen production is steam methane reforming. It can be carried out using a membrane reactor in which simultaneous hydrogen production and purification occur. Mathematical modeling of these reactors plays a key role in the selection of the design and operating parameters that yield high performance for the reactor. This review study discusses, synthesizes, and compares different mathematical modeling studies on the packed bed membrane reactors for hydrogen production from methane found in the literature. Different approaches used in these modeling studies for the hydrogen permeation steps, reaction kinetic expressions, phases involved (pseudo-homogeneous and heterogeneous), and spatial dimensions (one, two, and three dimensional) are given.

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Section: Modeling Approaches Based On Different Continuum Modelsmentioning

confidence: 99%

“…T A B L E 6 Heterogeneous model equations involving both gas and solid phases (Adapted from Mangold et al 79 )…”

Section: Modeling Approaches Based On Different Continuum Modelsmentioning

confidence: 99%

Section: Modeling Approaches For the Mrsmentioning

confidence: 99%

Section: Modeling Approaches For the Mrsmentioning

confidence: 99%

See 2 more Smart Citations

A review on mathematical modeling of packed bed membrane reactors for hydrogen production from methane

Atak

Çolpan

Iulianelli

2021

Intl J of Energy Research

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“…To guarantee the independency of the results of the analysis, a mesh sensitivity test with dfferent mesh densities was carried out. An advanced GMRES with multi-level multi-discretization solver was used to minimize the numerical error that arises from the discretization of the Navier-Stokes equation, which was solved based on the following equation [32,33]:…”

Section: Finite Element Analysismentioning

confidence: 99%

Modeling and simulation of a wirelessly-powered thermopneumatic micropump for drug delivery applications

Nafea

Baliah

Ali

2019

IJEEI

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This paper presents modeling and finite element analysis of a thermopneumatic micropump with a novel design that does not affect the temperature of the working fluid. The micropump is operated by activating a passive wireless heater using wireless power transfer when the magnetic field is tuned to match the resonant frequency of the heater. The heater is responsible for heating an air-heating chamber that is connected to a loading reservoir through a microdiffuser element. The solution inside the reservoir is pumped through a microchannel that ends with an outlet hole. The thermal and pumping performances of the micropump are analyzed using finite element method over a low range of Reynold's number ⩽ 10 that is suitable for various biomedical applications. The results demonstrate promising performance with a maximum flow rate of ∼2.86 μL/min at a chamber temperature of 42.5 ºC, and a maximum pumping pressure of 406.5 Pa. The results show that the developed device can be potentially implemented in various biomedical areas, such as implantable drug delivery applications.

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