scholarly journals Spectroscopy and Microreactor Technology for Single Catalyst Particle Diagnostics

10.33540/236 ◽  
2020 ◽  
Author(s):  
◽  
Anne-Eva Nieuwelink
Keyword(s):  
Catalyst Particle ◽  
Particle Diagnostics ◽  
Microreactor Technology

Microreactors for single catalyst particle diagnostics

2020 ◽  
Author(s):  
J. Vollenbroek
Keyword(s):  
Catalyst Particle ◽  
Particle Diagnostics

scholarly journals Single Catalyst Particle Diagnostics

2019 ◽  
Author(s):  
M. Solsona
Keyword(s):  
Catalyst Particle ◽  
Particle Diagnostics

scholarly journals Single Catalyst Particle Diagnostics in a Microreactor for Performing Multiphase Hydrogenation Reactions

2020 ◽  
Author(s):  
Anne-Eva Nieuwelink ◽  
Jeroen Vollenbroek ◽  
Andrea Ferreira de Abreu ◽  
Roald Tiggelaar ◽  
Albert van den Berg ◽  
...  
Keyword(s):  
High Throughput ◽  
High Throughput Screening ◽  
Catalyst Particle ◽  
Particle Diagnostics ◽  
Hydrogenation Reactions

Since inter- and intra-particle heterogeneities in catalyst particles are more the rule than exception, it is advantageous to perform high-throughput screening for the activity of single catalyst particles. A multiphase...

Pyrolytic carbon filaments and associated catalytic particles formed in steel tubes

1984 ◽  
Vol 42 ◽  
pp. 662-663
Author(s):  
Y. L. Chen ◽  
J. R. Bradley
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Catalyst Particle ◽  
Pyrolytic Carbon ◽  
Plain Carbon Steel ◽  
304 Stainless Steel ◽  
Hydrocarbon Gases ◽  
Steel Tubes ◽  
Filamentous Carbon ◽  
Carbon Filaments

Considerable effort has been directed toward an improved understanding of the production of the strong and stiff ∼ 1-20 μm diameter pyrolytic carbon fibers of the type reported by Koyama and, more recently, by Tibbetts. These macroscopic fibers are produced when pyrolytic carbon filaments (∼ 0.1 μm or less in diameter) are thickened by deposition of carbon during thermal decomposition of hydrocarbon gases. Each such precursor filament normally lengthens in association with an attached catalyst particle. The subject of filamentous carbon formation and much of the work on characterization of the catalyst particles have been reviewed thoroughly by Baker and Harris. However, identification of the catalyst particles remains a problem of continuing interest. The purpose of this work was to characterize the microstructure of the pyrolytic carbon filaments and the catalyst particles formed inside stainless steel and plain carbon steel tubes. For the present study, natural gas (∼; 97 % methane) was passed through type 304 stainless steel and SAE 1020 plain carbon steel tubes at 1240°K.

Revisiting Glycerol Esterification with Acetic Acid over Amberlyst-35 via Statistically Designed Experiments: Overcoming Transport Limitations

2019 ◽  
Author(s):  
Víctor Gabriel Baldovino Medrano ◽  
Karen V. Caballero ◽  
Hernando Guerrero-Amaya
Keyword(s):  
Acetic Acid ◽  
Active Sites ◽  
Batch Reactor ◽  
Catalyst Particle ◽  
Experimental Designs ◽  
Particle Sizes ◽  
Turnover Rates ◽  
Designed Experiments ◽  
Different Temperatures ◽  
Glycerol Esterification

Turnover rates for glycerol esterification with acetic acid over Amberlyst-35 were measured under different temperatures, reactants and active sites concentrations, and catalyst particle sizes. Data were collected in a batch reactor. Experiments were done following a sequence of factorial experimental designs.

Modelling of impregnation of γ-alumina with cobalt and molybdenum salts. CoCl2-(NH4)2MoO4-γ-Al2O3 (aluminate type) system

1987 ◽  
Vol 52 (3) ◽  
pp. 663-671 ◽  
Author(s):  
Jiří Hanika ◽  
Vladimír Janoušek ◽  
Karel Sporka
Keyword(s):  
Effective Diffusion ◽  
Type System ◽  
Catalyst Particle ◽  
Ammonium Molybdate ◽  
Active Components ◽  
Model Set ◽  
Cobalt Dichloride ◽  
Set Up ◽  
Electron Microanalysis ◽  
Kinetics Of

Adsorption data for the impregnation of alumina with an aqueous solution of cobalt dichloride and ammonium molybdate were treated in terms of the Langmuir adsorption isotherm and compared with a mathematical model set up to describe the kinetics of simultaneous impregnation of a support by two components. The effective diffusion coefficients of the two components at 25 °C in a cylindrical particle of alumina were obtained. The validity of the model used was verified qualitatively by comparing the numerical results with the experimental time dependent concentration profiles of the active components in a catalyst particle, measured by electron microanalysis technique.

scholarly journals Single catalyst particle growth modeling in thermocatalytic decomposition of methane

2021 ◽  
Vol 421 ◽  
pp. 129759
Author(s):  
M. Hadian ◽  
K.A. Buist ◽  
A.N.R. Bos ◽  
J.A.M. Kuipers
Keyword(s):  
Growth Modeling ◽  
Catalyst Particle ◽  
Particle Growth ◽  
Decomposition Of Methane ◽  
Thermocatalytic Decomposition
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