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Modeling and control of continuous tumble mixing of granular materials
(2005-06)
An approach to automatic control of a continuous tumble mixer of powders is presented. The control system is based on an ideal model that describes the mixer dynamics where the controlled variables are the outlet flow from ...
Improved binary and ternary nanostructured photocatalysts for gas phase detoxification of toluene
(2005)
Photocatalysis using nanocrystalline materials with enhanced catalytic properties under ultraviolet (UV) or visible light has the potential for becoming one of the leading processes for the abatement of environmental ...
In situ diffraction studies of Ni nanostructure growth using microporous materials as supports
(2009)
Our objective is to study the growth mechanism of Ni nanostructures supported in microporous materials using X-ray diffraction. Since only the surface atoms of a catalyst are active, our aim is to find the optimum synthesis ...
Reverse micelles in supercritical carbon dioxide for pharmacological applications: a spectroscopic characterization
(2004)
The aim of this research is to characterize microemulsions in supercritical (sc) CO2 using two spectroscopic techniques (UV-Vis and FT-IR) and apply the microemulsion approach to extract impurities from a pharmacological ...
Surface modification of nanoporous films using organosilanes dissolved in supercritical carbon dioxide
(2008)
It is well known in the microprocessor industry that as the number of transistors increases, the capacity of chips to manage information also increases. To continue with the increment in the number of transistors per ...
Measurement and correlation of axial dispersion coefficient in a bubble column with a non-Newtonian liquid phase
(2006)
Hydrodynamic characteristics (gas holdup, friction factor, and mixing in the liquid
phase) in a bubble column with a non-Newtonian liquid phase (aqueous solutions of
carboxymethylcellulose, or CMC, at different concentrations) ...
Perfluorinated and sulfonated proton exchange membranes: Effect of supercritical fluid processing on ion exchange capacity and proton conductivity
(2007)
The present work has processed Nafion® and sulfonated polystyrene-isobutylenestyrene
(SIBS) with supercritical fluid (SCF) carbon dioxide at a 40°C and 200 bar with
the aid of ten co-solvents of different size and polarity. ...
Operational parameters optimization of cross-flow ceramic membrane ultrafiltration for water depyrogenation
(2004)
Water ultrafiltration has been suggested as an alternative for the removal of
lypopolysaccharides in the production of Water for Injection and, Pyrogen Reduced
Water. Ultrafiltration of water using an annular ceramic ...
Autothermal reforming (ATR) for fuel cells in automotive applications
(2004)
Autothermal reforming of liquid fuels had been demonstrated to be feasible for use in fuel cell vehicles. One of the main problems with reforming systems is that the concentration product of carbon monoxide has to be less ...
Supercritical fluid processing of perfluorinated and sulfonated membranes
(2004)
Over the past years, one of the most important challenges facing industry
has been the search for environmentally benign and cost effective alternatives to
traditional power sources. Many industries invest considerable ...