Chemical Engineering: Recent submissions
Now showing items 1121-1140 of 1198
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Inquiry guided learning in a chemical engineering core curriculum: General instructional approach and specific application to the fluid mechanics case
( Tempus Publications , 2014 , Article)This paper presents results from a preliminary study of the effectiveness of using inquiry-guided learning instructional strategies both in chemical engineering classrooms and laboratories. For readers unfamiliar with the ... -
Insights from quantum chemistry into piperazine-based ionic liquids and their behavior with regard to CO2
( Springer Verlag , 2014 , Article)The short-range properties of alkylpiperazine ionic liquids paired with propionate and lactate anions were analyzed and their affinity for CO 2 molecules studied using density functional theory. Anion-cation interactions ... -
Solar thermochemical conversion of CO2 into synthetic fuels via ferrite based redox reactions
( AIChE , 2014 , Conference)In this contribution, we report the synthesis NiFe2O4 and CoFe2O4 redox materials via sol-gel method. For the synthesis of these materials via sol-gel approach, the Ni, Co, and Fe precursors were first dissolved in ethanol ... -
A quantum chemistry study of natural gas hydrates
( Springer Verlag , 2014 , Article)The structure and properties of natural gas hydrates containing hydrocarbons, CO2, and N2 molecules were studied by using computational quantum chemistry methods via the density functional theory approach. All host cages ... -
Properties of electrodeposited Ni-B-Al2O3 composite coatings
( Elsevier Ltd , 2014 , Article)Ni-B coatings have gained a great deal of attraction due to their promising mechanical properties. Owing to tempting properties, Ni-B coatings have succeeded to find their applications in automotive, aerospace, petrochemical, ... -
Insights into alkyl lactate + water mixed fluids
( Elsevier B.V. , 2014 , Article)The properties and nanoscopic structure of alkyl lactate + water binary mixtures were studied at 298.15 K in the whole composition range. Thermophysical measurements and spectroscopic studies allowed analysing the ... -
Room-temperature development of thin film composite reverse osmosis membranes from cellulose acetate with antibacterial properties
( Elsevier B.V. , 2014 , Article)A cellulose acetate thin film composite (CA TFC) membrane was developed by direct casting of CA onto an ultrafiltration membrane support. The flux through the CA TFC membrane was, as expected, inversely proportional to the ... -
Effect of operational parameters on distillate flux in direct contact membrane distillation (DCMD): Comparison between experimental and model predicted performance
( Elsevier B.V. , 2014 , Article)Membrane distillation (MD) is a thermally driven process where hydrophobic membranes are used to separate saline hot feed solution and cold stream of water and allow water to evaporate due to temperature difference. This ... -
Online monitoring of the solvent and absorbed acid gas concentration in a CO2 capture process using monoethanolamine
( American Chemical Society , 2014 , Article)A method has been developed for online liquid analysis of the amine and absorbed CO2 concentrations in a postcombustion capture process using monoethanolamine (MEA) as a solvent. Online monitoring of the dynamic behavior ... -
Managing abnormal operation through process integration and cogeneration systems
( Springer Verlag , 2015 , Article)Flaring is a common industrial practice that leads to substantial greenhouse gas emissions, health problems, and economic losses. When the causes, magnitudes, and frequency of flaring are properly understood and incorporated ... -
A predictive model for the assessment of the temperature polarization effect in direct contact membrane distillation desalination of high salinity feed
( Elsevier B.V. , 2014 , Article)Temperature polarization is one of the major sources responsible for flux drop in membrane distillation systems due to the reduction in the driving force across the membrane. The present study offers a predictive model ... -
Removal of pharmaceutical and personal care products (PPCPs) pollutants from water by novel TiO2-Coconut Shell Powder (TCNSP) composite
( Korean Society of Industrial Engineering Chemistry , 2014 , Article)Photocatlytic removal of three pharmaceutical and personal care products pollutants using novel TiO2–Coconut Shell Powder (TCNSP) composite was investigated. The photocatalytic degradation rate of PPCPs generally increased ... -
Theoretical study on amino acid-based ionic pairs and their interaction with carbon nanostructures
( American Chemical Society , 2014 , Article)Quantum chemistry methods were used to analyze the properties of ionic pairs formed by combination of the 1-ethyl-3-methylimidazolium cation with anions derived from alanine, glycine, serine, and phenylalanine amino acids, ... -
Viscosity and density of ternary solution of calcium chloride + sodium chloride + water from T = (293.15 to 323.15) K
( American Chemical Society , 2014 , Article)Viscosities and densities of ternary systems of CaCl2–NaCl–water were measured in the range of T = (293.15 to 323.15) K at 5 K intervals and up to 4.5 mol·kg–1. Two equations based on the Exponential and Goldsack and ... -
Hierarchical porous carbon by ultrasonic spray pyrolysis yields stable cycling in lithium-sulfur battery
( American Chemical Society , 2014 , Article)Utilizing the unparalleled theoretical capacity of sulfur reaching 1675 mAh/g, lithium-sulfur (Li-S) batteries have been counted as promising enablers of future lithium ion battery (LIB) applications requiring high energy ... -
Photocatalytic reduction of CO2 and protons using water as an electron donor over potassium tantalate nanoflakes
( Royal Society of Chemistry , 2014 , Article)CO2 photoreduction over KTaO3 photocatalysts in water has been investigated. Both reduction (mainly carbon monoxide and hydrogen) and oxidation products (oxygen) were simultaneously detected in the absence of cocatalysts, ... -
Earth-abundant oxygen evolution catalysts coupled onto ZnO nanowire arrays for efficient photoelectrochemical water cleavage
( Wiley-VCH Verlag , 2014 , Article)ZnO has long been considered as a model UV-driven photoanode for photoelectrochemical water splitting, but its performance has been limited by fast charge-carrier recombination, extremely poor stability in aqueous solution, ... -
Characteristics of olive mill solid residue and its application in remediation of Pb2+, Cu2+ and Ni2+ from aqueous solution: Mechanistic study
( Elsevier , 2014 , Article)This study investigated the use of untreated olive mill solid residues (OMSR) as a solid extractant for Pb2+, Cu2+ and Ni2+ ions from aqueous solution. It was shown that the solution initial pH value affected the metal ... -
Viscous origin of ionic liquids at the molecular level: A quantum chemical insight
( Elsevier , 2014 , Article)The viscosity of selected families of ionic liquids has been assessed at the molecular level as a function of the intermolecular interactions using Density Functional Theory together with Atoms-in-a-Molecule and Natural ... -
Theoretical study on the solvation of C60 fullerene by ionic liquids
( American Chemical Society , 2014 , Article)The solvation of C60 fullerene by 24 different ionic liquids belonging to the imidazolium, piperazinium, and cholinium families was analyzed from a nanoscopic viewpoint using classic molecular dynamics simulations and ...
