Advances in fixed-bed reactor modeling using particle-resolved computational fluid dynamics (CFD)

N Jurtz, M Kraume, GD Wehinger - Reviews in Chemical Engineering, 2019 - degruyter.com
In 2006, Dixon et al. published the comprehensive review article entitled “Packed tubular
reactor modeling and catalyst design using computational fluid dynamics.” More than one …

Intensification of heat transfer in catalytic reactors by additively manufactured periodic open cellular structures (POCS)

C Busse, H Freund, W Schwieger - Chemical Engineering and Processing …, 2018 - Elsevier
Cellular structures are considered as alternative catalyst carrier with high potential for
process intensification of catalytic reactors due to their remarkable combination of beneficial …

[HTML][HTML] Optimal catalyst particle design for flexible fixed-bed CO2 methanation reactors

RT Zimmermann, J Bremer, K Sundmacher - Chemical Engineering …, 2020 - Elsevier
Power-to-Methane is a concept for energy storage harvested from renewable sources, for
instance solar and wind power. A flexible operation of catalytic fixed-bed methanation …

A simple and coherent set of coefficients for modelling of heat and mass transport with and without chemical reaction in tubes filled with spheres

M Winterberg, E Tsotsas, A Krischke… - Chemical Engineering …, 2000 - Elsevier
Temperature and concentration profiles are commonly modelled in wall-cooled or-heated
packed beds by quasi-homogeneous models. The model coefficients depend on the kind of …

On the optimal design of load flexible fixed bed reactors: Integration of dynamics into the design problem

KL Fischer, H Freund - Chemical Engineering Journal, 2020 - Elsevier
The design of dynamically operated fixed bed reactors is a challenging task, especially for
highly exothermic reactions. Fluctuations of process conditions such as inlet flow rate and …

[HTML][HTML] Load-flexible fixed-bed reactors by multi-period design optimization

RT Zimmermann, J Bremer, K Sundmacher - Chemical Engineering …, 2022 - Elsevier
Many research activities focus on load-flexible fixed-bed reactors in the context of Power-to-
X concepts. One of the main issues is the occurrence of hazardous temperature excursions …

Fixed bed catalytic reactor modelling—the radial heat transfer problem

AG Dixon - The Canadian Journal of Chemical Engineering, 2012 - Wiley Online Library
An interpretation of the state‐of‐the‐art in modelling radial heat transfer in fixed bed catalytic
reactors is presented. The persistence of the classical kr–hw model is discussed, problems …

Thermodynamic and economic analysis of a directly solar-driven power-to-methane system by detailed distributed parameter method

L Zhong, E Yao, H Zou, G ** - Applied Energy, 2022 - Elsevier
The transformation of solar energy into easily transportable and storable fuel brings a
prospective solution to the issue caused by its intermittency and non-dispatching. Relying on …

[HTML][HTML] Heat transfer to a catalytic multiphase dehydrogenation reactor

M Willer, P Preuster, P Malgaretti, J Harting… - International Journal of …, 2024 - Elsevier
The release of hydrogen from liquid organic hydrogen carriers (LOHC) takes place in an
endothermal dehydrogenation reaction that is accompanied by a strong volume expansion …

Contact modifications for CFD simulations of fixed-bed reactors: cylindrical particles

GD Wehinger, C Fütterer… - Industrial & Engineering …, 2017 - ACS Publications
One of the major issues for particle-resolved CFD simulations of fixed beds are particle–
particle and particle–wall contacts. A fixed bed of cylinders is studied with different local …