In situ13C DEPT-MRI as a tool to spatially resolve chemical conversion and selectivity of a heterogeneous catalytic reaction occurring in a fixed-bed reactor

2005 ◽  
pp. 2741 ◽  
Author(s):  
Belinda S. Akpa ◽  
Michael D. Mantle ◽  
Andrew J. Sederman ◽  
Lynn F. Gladden
Keyword(s):  
Catalytic Reaction ◽  
Fixed Bed ◽  
Chemical Conversion ◽  
Fixed Bed Reactor ◽  
Heterogeneous Catalytic Reaction ◽  
Heterogeneous Catalytic

Three consecutive steps over the chirally modified Pt surface: asymmetric catalytic cascade reaction of 2-nitrophenylpyruvates

2015 ◽  
Vol 5 (2) ◽  
pp. 697-704 ◽  
Author(s):  
György Szőllősi ◽  
Lenke Kovács ◽  
Zsolt Makra
Keyword(s):  
Metal Surface ◽  
Catalytic Reaction ◽  
Cascade Reaction ◽  
Heterogeneous Catalytic Reaction ◽  
Reaction Conditions ◽  
Asymmetric Catalytic ◽  
Heterogeneous Catalytic

The influence of the reaction conditions on the asymmetric heterogeneous catalytic reaction of 2-nitrophenylpyruvates over Pt modified with cinchonidine showed that all three steps of the cascade occur on the metal surface.

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

2019 ◽  
Vol 35 (2) ◽  
pp. 139-190 ◽  
Author(s):  
Nico Jurtz ◽  
Matthias Kraume ◽  
Gregor D. Wehinger
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Fixed Bed ◽  
Review Article ◽  
Catalyst Design ◽  
Fixed Bed Reactor ◽  
Reactor Modeling ◽  
Catalytic Systems ◽  
Heterogeneous Catalytic ◽  
Computational Fluid Dynamics Cfd

Abstract 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 decade later, many researchers have contributed to novel insights, as well as a deeper understanding of the topic. Likewise, complexity has grown and new issues have arisen, for example, by coupling microkinetics with computational fluid dynamics (CFD). In this review article, the latest advances are summarized in the field of modeling fixed-bed reactors with particle-resolved CFD, i.e. a geometric resolution of every pellet in the bed. The current challenges of the detailed modeling are described, i.e. packing generation, meshing, and solving with an emphasis on coupling microkinetics with CFD. Applications of this detailed approach are discussed, i.e. fluid dynamics and pressure drop, dispersion, heat and mass transfer, as well as heterogeneous catalytic systems. Finally, conclusions and future prospects are presented.

Heterogeneous catalytic reaction on a 2×2 lattice

1998 ◽  
Vol 400 (1-3) ◽  
pp. 197-202 ◽  
Author(s):  
J.L Vicente ◽  
A Maltz ◽  
E.E Mola
Keyword(s):  
Catalytic Reaction ◽  
Heterogeneous Catalytic Reaction ◽  
Heterogeneous Catalytic
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