Fixed-bed reactor modeling for methanol to dimethyl ether (DME) reaction over γ-Alumina using a new practical reaction rate model

Ghavipour, Mohammad; Behbahani, Reza Mosayebi

doi:10.1016/j.jiec.2013.09.015

Cited by 30 publications

(10 citation statements)

References 29 publications

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“…For fixed-bed modelling, continuum model, i.e., treating fluid and solid phases as pseudo-continuum has been the most applied approach [78]. Both 1D plug flow and 2D continuum models have been used [4,37,[79][80][81][82][83]. If computational power permits, a 3D discrete particle model can be applied [84][85][86][87].…”

Section: Continuum and Discrete Fixed-bed Modelmentioning

confidence: 99%

“…Fixed-bed modelling has been carried out by several investigators on DME producing process using methanol dehydration. Ghavipour and Behbahani [81] investigated the methanol dehydration process in fixed bed with a 1D heterogeneous plug flow model. Unsteady-state simulation is performed to model the reactor start-up process.…”

Section: Continuum and Discrete Fixed-bed Modelmentioning

confidence: 99%

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Development of Solid–Fluid Reaction Models—A Literature Review

2021

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A comprehensive review is carried out on the models and correlations for solid/fluid reactions that result from a complex multi-scale physicochemical process. A simulation of this process with CFD requires various complicated submodels and significant computational time, which often makes it undesirable and impractical in many industrial activities requiring a quick solution within a limited time frame, such as new product/process design, feasibility studies, and the evaluation or optimization of the existing processes, etc. In these circumstances, the existing models and correlations developed in the last few decades are of significant relevance and become a useful simulation tool. However, despite the increasing research interests in this area in the last thirty years, there is no comprehensive review available. This paper is thus motivated to review the models developed so far, as well as provide the selection guidance for model and correlations for the specific application to help engineers and researchers choose the most appropriate model for feasible solutions. Therefore, this review is also of practical relevance to professionals who need to perform engineering design or simulation work. The areas needing further development in solid–fluid reaction modelling are also identified and discussed.

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Section: Continuum and Discrete Fixed-bed Modelmentioning

confidence: 99%

Section: Continuum and Discrete Fixed-bed Modelmentioning

confidence: 99%

Development of Solid–Fluid Reaction Models—A Literature Review

2021

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“…19 Traditionally, DME can be produced through two methods. One 20 is methanol dehydration on a single solid acid catalyst such as g- 21 alumina or HZSM-5 zeolite [4][5][6], where the methanol is separately 22 made from syngas, and another is a couple of consecutive reactions 23 for DME direct synthesis from syngas on a hybrid catalyst, where 24 the hybrid catalyst is a simple mixture of methanol synthesis 25 catalyst and methanol dehydration catalyst. Direct synthesis of 26 DME from syngas (STD process) is a promising process because of 27 its significant economic value and theoretical importance.…”

Section: Q2mentioning

confidence: 99%

“…CH 3 OCH 3 þ CO 2 (4) 37 38 39 Since methanol formed by reaction (1) is consumed for the 40 formation of DME and water in reaction (2). The water generated in 41 reaction (2) is shifted by the WGS reaction (3), forming carbon 42 dioxide and hydrogen; the latter is a reactant for the methanol 43 synthesis in reaction (1).…”

Section: Q2mentioning

confidence: 99%

The facile preparation of Cu–Zn–Al oxide composite catalysts with high stability and performance for the production of dimethyl ether using modified aluminum alkoxide

Wang

Huang

Zhang

et al. 2015

Journal of Industrial and Engineering Chemistry

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“…Several studies through modelling and simulation have been carried out for fixed bed reactors. Ghavipour and Behbahani [13] developed a 1D unsteady state heterogeneous model to simulate adiabatic and non-adiabatic fixed-bed reactors for methanol to dimethyl ether reaction. Tinaut et al [4] presented a 1D steady state model of biomass gasification in a fixed bed downdraft gasifier.…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental study, dynamic modelling, validation and analysis of hydrogen production from biomass pyrolysis/gasification of biomass in a two-stage fixed bed reaction system

Olaleye

Adedayo

et al. 2014

Fuel

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There is great interest in producing hydrogen from renewable sources such as biomass rather than from fossil fuels. This paper presents new experimental results at different pyrolysis temperature and development of a dynamic model for a biomass pyrolysis/steam reforming process in a two stage fixed bed reactor. The model considers the hydrodynamics of the fixed bed reactor, the interfacial mass and energy transfer between the fluid-solid systems and the porous catalyst, and the energy transfer on a kinetic model. The 2D dynamic model resulted in a system of partial differential equations which was solved numerically in gPROMS ® . The model was validated with the experimental results. The model predictions show good agreement with the experimental results. The model can be used as a useful tool for design, operation, optimization and control of the biomass steam gasification process.

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Fixed-bed reactor modeling for methanol to dimethyl ether (DME) reaction over γ-Alumina using a new practical reaction rate model

Cited by 30 publications

References 29 publications

Development of Solid–Fluid Reaction Models—A Literature Review

Development of Solid–Fluid Reaction Models—A Literature Review

The facile preparation of Cu–Zn–Al oxide composite catalysts with high stability and performance for the production of dimethyl ether using modified aluminum alkoxide

Experimental study, dynamic modelling, validation and analysis of hydrogen production from biomass pyrolysis/gasification of biomass in a two-stage fixed bed reaction system

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