EVALUATION OF MASS TRANSFER EFFECTS ON CONSECUTIVE CATALYTIC REACTION USING AN INTERNAL-RECYCLE CATALYTIC REACTOR

Catalytic Kinetic Determination of Silver through its Catalytic Effect on Congo Red-Peroxodisulphate Reaction

A kinetic-spectrophotometric procedure is reported for determination of trace amounts of Ag(I). This method is based on catalytic effect of silver ion on the oxidation of congo red by potassium peroxodisulphate at pH=3.4 and 30 oC in the presence of 1,10-phenanthroline as an activator. The reaction was followed spectrophotometrically by measuring the rate of change in absorbance ...

Role of Mass Transfer in Phase Transfer Catalytic Heterogeneous Reaction Systems

Simulation Study of Radial Heat and Mass Transfer Inside a Fixed Bed Catalytic Reactor

A rigorous two-dimensional model is developed for simulating the operation of a less-investigated type steam reformer having a considerably lower operating Reynolds number, higher tube diameter, and non-availability of extra steam in the feed compared with conventional steam reformers. Simulation results show that reasonable predictions can only be achieved when certain correlations for wall to...

In-situ Drift Spectroscopy in a Continuous Recycle Reactor: a Versatile Tool for Catalytic Process Research

Transmission infrared spectroscopy is a vahxable technique in catalytic science for the insitu detection and characterization of intermediates sorbed on the surface of heterogeneous catalysts (in the form of pressed-discs) under realistic conditions, i.e. high temperatures and/or high pressures. However, the drawbacks of this method are well-documented(l,2). The recent advent of commercial FTIR...

Control Strategies Evaluation for a Three-Phase Hydrogenation Catalytic Reactor

Hydrogenation reactions are widely applied industrially, and reactors have been designed for this purpose. It is a highly non-linear process, multivariable, with exothermic reaction. The model formulation was made focusing on the hydrogenation reaction of o-cresol to obtain the 2-methil-cyclohexanol, in the presence of a Ni/SiO2 catalyst. A competitive advantage in such kind of system (a commod...