Hydrodynamic Characteristics of an Internal Recycle Berty Catalytic Reactor in Batch/Continuous or Packed/Fluidized Bed Modes

Decomposition of hydrogen peroxide in a catalytic fluidized-bed reactor

The decomposition of H2O2 by a novel supported g-FeOOH catalyst was performed in a continuous fluidized-bed reactor. This catalyst has been successfully used in the treatment of organic contaminants with H2O2 in our previous work. In this study, we attempted to determine the effects of pH, H2O2 concentration, and catalyst concentration on the decomposition of H2O2. An approach, we regarded this...

Steady State Operability Characteristics of an Adiabatic Fixed-Bed Reactor for Methanol Dehydration

Operability analysis as one of the most important bridges between process design and process control helps the process designer to investigate the control issues quite early in the design stage. Recently, Vinson and Georgakis suggested a steady state geometrical operability index as a quantitative measure for assessment of process operability. In...

Catalytic Combustion of Biogas-Hydrogen Mixtures in a Packed Bed Reactor

Investigation of Surfactant Effect on the Operational Characteristics of a Packed Bed Internal Loop Airlift Reactor

Investigation of turbulency on the rate of induced liquid circulation, gas hold-up, mixing time and overall gas–liquid volumetric oxygen mass transfer coefficient. The various types of surfactants (containing Brij58, TritonX-405, Tween40, HCTBr) with various concentrations of 1-5 ppm were examined on the operational characteristics of the reactor. In surfactant solutions (in comparison with pur...

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...