Chemical Engineering: Recent submissions
Now showing items 1141-1160 of 1172
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Representation of Adsorption Data for the Isopropanol-Water System using Neural Network Techniques
( WILEY-VCH Verlag , 2005 , Article)Molecular sieves and palm stone, a newly developed bio-based adsorbent, were used to break an azeotropic isopropanol-water system via an adsorptive distillation process. Equilibrium data at different inlet water contents ... -
Visible light-driven metal-oxide photocatalytic CO2 conversion
( John Wiley & Sons, Ltd. , 2015 , Article)In this work, nine photocatalysts were prepared by a conventional solid-state reaction method. The samples were characterized by X-ray diffraction, UV–Vis diffuse reflectance spectroscopy, surface area measurements based ... -
Advances in Tailoring Resorcinol-Formaldehyde Organic and Carbon Gels
( WILEY-VCH Verlag , 2011 , Article)An overview on the preparation and properties of resorcinol-formaldehyde (RF) organic and carbon gels reveals the fascinating and remarkably flexible properties of RF carbon and organic gels and how these properties are ... -
Viscous-Gravity spreading of oil on water
( John Wiley & Sons, Inc. , 2001 , Article)Spreading of oil on calm water is analyzed for the second stage of spread, which is controlled by a balance between gravity and viscous forces. The analysis, using the integral boundary-layer method, agreed well with a ... -
Ultrasonic and thermal properties of γ-irradiated low-density polyethylene
( John Wiley & Sons, Inc. , 1993 , Article)The ultrasonic pulse-echo technique and differential thermal analysis were utilized to characterize and to monitor the effect of ?-irradiation on the sonic modulus and the heat effect of low-density polyethylene. The sonic ... -
Adhesion Improvement Between Polyethylene and Aluminum Using Eco-Friendly Plasma Treatment
( John Wiley & Sons, Inc. , 2015 , Book chapter) -
Ionic Liquids in Bulk and at an Interface
( John Wiley & Sons, Inc , 2015 , Book chapter)In the present chapter, we describe different types of investigation carried out by research groups based at CQE/IST/UTL and ITQB/UNL and their ramifications in terms of surface science. Most of the work is focused on the ... -
Accurate PpT Data for Methane from (300 to 450) K up to 180 MPa
( American Chemical Society , 2010 , Article)This paper reports PFT data measured with a high-pressure, single-sinker, magnetic-suspension densimeter (MSD) from (300 to 450) K up to 180 MPa. Our MSD technique yields accurate data, with less than 0.05 % relative u ... -
Force Transmission Error Analysis for a High-Pressure Single-Sinker Magnetic Suspension Densimeter
( Springer Science and Business Media , 2010 , Article)The magnetic suspension densimeter (MSD) is a sophisticated, stateof- the-art device that provides extremely accurate results for density measurements. The MSD uses a magnetic technique to couple a mass inside a measurement ... -
Markedly improved CO2 capture efficiency and stability of gallium substituted hydrotalcites at elevated temperatures
( American Chemical Society , 2009 , Article)Potassium carbonate promoted, Ga3+ substituted hydrotalcites reported here exhibit very high, selective and reversible CO2 capture from an exhaust gas mixture. The 10% Ga3+ substitution improved the CO2 capture from 0.3 ... -
A simplified method for calculating saturated liquid densities
( Elsevier B.V. , 2004 , Article)A simplification for the Nasrifar–Moshfeghian (NM) liquid density correlation has been developed. A replacement for the Mathias and Copeman temperature-dependent term with the original Soave–Redlich–Kwong equation of state ... -
Neural network model-based predictive control of liquid–liquid extraction contactors
( Elsevier Ltd , 2004 , Article)The inherent complex nonlinear dynamic characteristics and time varying transients of the liquid–liquid extraction process draw the attention to the application of nonlinear control techniques. In this work, neural ... -
Treatment of waters colored with methylene blue dye by vacuum membrane distillation
( Elsevier B.V. , 2004 , Article)Textile industries consume large amounts of water and generate highly dye-contaminated effluents. Textile wastewaters have to be treated in order to be recycled in the process or to meet legislative requirements before ... -
Integrating hybrid systems with existing thermal desalinationplants
( Elsevier B.V. , 2004 , Article)In Gulf countries, most power plants are co-generation power desalting plants (CPDP) that generate electric energy and also produce fresh water through the desalination of seawater. This paper provides detailed technical ... -
Aquifer storage and recovery (ASR): A strategic cost-effective facility to balance water production and demand for Sharjah
( Elsevier B.V. , 2004 , Article)Aquifer storage and recovery was evaluated as a strategic water storage facility and as a tool to reduce overallcost of water production. This work investigated the size, cost, and mode of operation required to run the ... -
Modeling, simulation and control of a scheibel liquid–liquid contactor: Part 1. Dynamic analysis and system identification
( Elsevier B.V. , 2004 , Article)The liquid–liquid extraction process is well-known for its complexity and often entails intensive modeling and computational efforts to simulate its dynamic behaviour. However, rigorous mathematical models are usually ... -
Modeling, simulation and control of a scheibel liquid–liquid contactor: Part 2. Model-based control synthesis and design
( Elsevier B.V. , 2004 , Article)This study describes an application of model-based control techniques to a liquid–liquid extraction process. The control design is based on a reduced order model of the process obtained by system identification. A multi-loop ... -
Stability of membrane fouling particles under perikinetic and orthokinetic flow conditions
( Elsevier B.V. , 2004 , Article)Stability of fouling particles against Brownian motion (perikinetic) and simple shear flow (orthokinetic) was investigated. The effect of the various parameters such as particle radius, Hamaker constant, salt (1-1 type) ... -
Desalination using ambient air: simulation and energy optimization
( Elsevier B.V. , 2004 , Article)This work applies to process design, simulation, analysis, and optimization to minimize the energy requirements for producing desalinated water using ambient air (humidification and dehumidification process). The only ... -
Photodegradation of methylene blue dye by the UV/H2O2 and UV/acetone oxidation processes
( Elsevier B.V. , 2005 , Article)The photodegradation of methylene blue (MB) dye in aqueous solutions was investigated using a laboratory-scale UV lamp in the presence of hydrogen peroxide (H2O2). Different initial concentrations of dyes (10, 20, 30, 40 ...