International

Anderson, Earl V.

doi:10.1021/cen-v053n034.p018

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…">negligible radial temperature gradient in the catalyst bed from experiments (Δ T < 3 °C), no heat and mass transport limitation around particles via Anderson criterion 15 and Mears criterion 16, no intraparticle temperature gradients via Anderson criterion 15, and …”

Section: Simulation Model For the Tubular Reactormentioning

confidence: 99%

See 1 more Smart Citation

Simulation of One‐Stage Dimethyl Ether Synthesis over a Core‐Shell Catalyst

Ding

Klumpp

Lee

et al. 2015

Chemie Ingenieur Technik

View full text Add to dashboard Cite

A spherical microsized core‐shell catalyst (CuO/ZnO/Al2O3@H‐ZSM‐5) was synthesized for direct dimethyl ether synthesis from syngas in a micro packed bed reactor. To assist in the preparation and optimization of the core‐shell catalyst, a 1D heterogeneous model was developed to simulate diffusion and reactions within the catalyst particles. Using the data obtained from the tubular reactor, kinetic parameters for the catalyst were determined first. Furthermore, simulation showed that thickness and activity of shell have significant effect on the catalytic performance of the core‐shell catalyst.

show abstract

Section: Simulation Model For the Tubular Reactormentioning

confidence: 99%

“…no heat and mass transport limitation around particles via Anderson criterion 15 and Mears criterion 16,…”

Section: Simulation Model For the Tubular Reactormentioning

confidence: 99%

Simulation of One‐Stage Dimethyl Ether Synthesis over a Core‐Shell Catalyst

Ding

Klumpp

Lee

et al. 2015

Chemie Ingenieur Technik

View full text Add to dashboard Cite

show abstract

“…The influence of transport limitations can be estimated via dimensionless quantities such as the two Mears criteria for external heat and mass transfer , the Weisz‐Prater criterion for intraparticle mass transport , and the Anderson criterion for internal heat transport . In general, the influence of internal mass transport and external heat transport must be considered when modeling methanation reactors with large catalyst pellets, small pore radii, and small Reynolds numbers .…”

Section: Kinetic Models and Methodsmentioning

confidence: 99%

Applying Reaction Kinetics to Pseudohomogeneous Methanation Modeling in Fixed‐Bed Reactors

et al. 2020

View full text Add to dashboard Cite

Reactor simulations can reduce the effort when designing fixed-bed reactors for methanation processes. Several microkinetic models were developed under a variety of operating conditions. However, most production-scale fixed-bed methanation processes exceed the temperature range in which these kinetic models were obtained. In addition, heat and mass transport limitations strongly influence the reaction kinetics. In this work, microkinetic rate equations for CO and CO 2 methanation were analyzed with respect to their suitability for high-temperature, pseudohomogeneous reactor modeling. The best-suited kinetic model was fitted to the operating conditions and validated by means of CFD simulations. It is shown that the simulations match the experimental data for various operating conditions.

show abstract

International

Cited by 2 publications

References 0 publications

Simulation of One‐Stage Dimethyl Ether Synthesis over a Core‐Shell Catalyst

Simulation of One‐Stage Dimethyl Ether Synthesis over a Core‐Shell Catalyst

Applying Reaction Kinetics to Pseudohomogeneous Methanation Modeling in Fixed‐Bed Reactors

Contact Info

Product

Resources

About