Journal ArticleDOI
Raney-nickel catalyzed hydrogenations: Gas-liquid mass transfer in gas-induced stirred slurry reactors
TLDR
In this article, the authors investigated gas liquid mass transfer in gas induced stirred reactors by the method of physical absorption, based on pressure variation, using two different gas-inducers, liquid composition temperature and height in the reactor, gas pressure and type, solid catalyst type and concentration have been varied in a lab reactor.About:
This article is published in Chemical Engineering Science.The article was published on 1992-09-01. It has received 85 citations till now. The article focuses on the topics: Raney nickel & Absorption (chemistry).read more
Citations
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Journal ArticleDOI
Carbon Materials as Catalyst Supports and Catalysts in the Transformation of Biomass to Fuels and Chemicals
Edmond Lam,John H. T. Luong +1 more
TL;DR: Carbon plays a dual role as a catalyst or a catalyst support for chemical and enzymatic biomass transformation reactions due to its large specific surface area, high porosity, excellent electron conductivity, and relative chemical inertness as mentioned in this paper.
Journal ArticleDOI
Mass transfer in gas-liquid slurry reactors
TL;DR: A critical review on the mass transfer characteristics of gas?liquid slurry reactors is presented in this article, where the authors discuss the influence of the presence of solid particles on the following mass transfer parameters: volumetric gas? liquid mass transfer coefficients (kLa, kGa), liquid-side mass transfer coefficient (kL and kS), and specific gas?slurry contact area (a).
Journal ArticleDOI
Hydrodeoxygenation of 4-Methylphenol over Unsupported MoP, MoS2, and MoOx Catalysts†
TL;DR: In this article, a study of the hydrodeoxygenation (HDO) of 4-methylphenol over unsupported, low-surface-area MoS2, MoO2, MoO3, and MoP catalysts is reported.
Journal ArticleDOI
Three-phase hydrogenation of d-glucose over a carbon supported ruthenium catalyst—mass transfer and kinetics
TL;DR: In this article, the authors studied the catalytic hydrogenation of d-glucose to d-sorbitol over a 5% Ru/C catalyst in a semi-batch slurry autoclave operating at 373-403 K and 4.0-7.5 MPa hydrogen pressure.
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A review of experimental procedures for heavy oil hydrocracking with dispersed catalyst
TL;DR: In this article, the technical knowledge necessary to study the hydrocracking of heavy oil with dispersed catalysts is summarized and a discussion also includes a description of the experimental setups, operation modes and suitable reactors for conducting heavy oil hydro-cracking experiments.
References
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Journal ArticleDOI
Mechanically agitated gas-liquid reactors
TL;DR: In this paper, the hydrodynamic, heat and mass transfer characteristics of mechanically agitated contactors have been critically reviewed and the mixing time (θmix) can be correlated well by a model based on circulation path and average circulation velocity.
Journal ArticleDOI
Gas Absorption by Newtonian and Non-Newtonian Fluids in Sparged Agitated Vessels
Hideharu Yagi,Fumitake Yoshida +1 more
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Mass transfer in mechanically agitated gas—liquid contactors
V.D. Mehta,Man Mohan Sharma +1 more
TL;DR: In this article, the theory of absorption with slow chemical reaction was used to obtain effective interfacial area, a, in mechanically agitated vessels, and the liquid-side mass transfer coefficient, kLa, was found by using the theory.
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Mass transfer in multiphase agitated contactors
TL;DR: In this article, the batch gas absorption technique was used to measure gas volumetric mass transfer coefficients kLa for some gas-liquid and gas-water mixture, including liquid and gas.
Journal Article
Particle-gas-liquid mixing in stirred vessels. I: Particle-liquid mixing
TL;DR: In this article, le equipement utilise for cette etude is described and the correlations predisant la vitesse de l'agitateur pour laquelle les particules sont juste en suspension dans un liquide non aere.