Chemical Engineering: Recent submissions
Now showing items 1141-1160 of 1174
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Analysis of the thermal expansion behavior of oriented polyoxymethylene sheets
( Wiley Subscription Services, Inc., A Wiley Company , 1996 , Article)The applicability of the molecular composite model is extended to include the analysis of the thermal expansion behavior of oriented (anisotropic) polyoxymethylene. The model accounts for changes in the morphological and ... -
Dynamic behavior of mixer-settlers
( Wiley Subscription Services, Inc., A Wiley Company , 1990 , Article)A mathematical model has been developed to simulate and predict the dynamic behavior of liquid extraction counter current operations in mixer-settler units. Murphree efficiency has been included in the model. The behavior ... -
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 ... -
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 ... -
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 ... -
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) ...
