Browsing Chemical Engineering by Title
Now showing items 500-519 of 943
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Key applications and potential limitations of ionic liquid membranes in the gas separation process of CO2, CH4, N2, H2 or mixtures of these gases from various gas streams
( MDPI AG , 2020 , Article Review)Heightened levels of carbon dioxide (CO2) and other greenhouse gases (GHGs) have prompted research into techniques for their capture and separation, including membrane separation, chemical looping, and cryogenic distillation. ... -
Kinetic and thermodynamic investigation of CO2 adsorption-desorption on polyethyleneimine - Mesoporous silica
( TechConnect , 2016 , Conference Paper)Two CO2 solid sorbents based on polyethyleneimine, PEI (432 and 10k) impregnated into mesoporous silica (MPS) foam were synthesized and tested for CO2 capture. At ambient pressure, the amount of CO2 captured by these solid ... -
Kinetic modeling of microalgae growth and CO2 bio-fixation using central composite design statistical approach
( Elsevier B.V. , 2020 , Article)The optimum growth (μ), CO2 bio-fixation (RCO2) rates and the energy ratio (ER) of microalgae Chlorella vulgaris (C.v) were identified using central composite design statistical approach (CCD-SA). μ and RCO2 parameters ... -
Kinetic, equilibrium and thermodynamic studies for adsorption of nickel ions onto husk of oryza sativa
( Desalination Publications , 2019 , Article)This research focus onto batch adsorption of nickel ions (Ni(II)) onto husk of Oryza sativa (HOS) from aqueous solution at room temperature. Several techniques such as Fourier transform infrared, scanning electron microscopy ... -
Kinetic, equilibrium, and thermodynamic studies for adsorptive removal of cobalt ions by rice husk from aqueous solution
( Desalination Publications , 2020 , Article)Herein, batch adsorptive removal of cobalt ions (Co(II)) from aqueous solution was studied at room temperature. Adsorption of cobalt ions onto rice husk (RH) was confirmed by utilizing Fourier transform infrared, scanning ... -
Kinetics of CO 2 reaction with N-methyldiethanolamine and aminobutanol using stopped flow technique
( Institute of Physics Publishing , 2018 , Conference Paper)Removal of carbon dioxide (CO 2 ) from natural gas streams is mandatory to avoid pipeline corrosion, increase the heating value of the gas and reduce the gas volume in case of liquefied natural gas (LNG). The use of ... -
Kinetics of CO2 Adsorption/Desorption of Polyethyleneimine-Mesoporous Silica
( Wiley-VCH Verlag , 2017 , Article)The kinetics of adsorption of CO2 on solid sorbents based on polyethyleneimine/mesoporous silica (PEI/MPS) was studied by following the mass gain during CO2 flow. Linear (PEI-423) and branched (PEI-10k) polymers were ... -
Kinetics of humics removal from water and wastewater using granular activated carbon, iron-coated activated alumina, and beta ferric oxihydroxide
(2010 , Article)Application of kinetic models to represent the removal of humic substances from water and wastewater was investigated. An adsorbate-adsorbent system was represented by humic substances and three adsorbents, namely granular ... -
Kinetics of reactive absorption of CO2 using aqueous blend of potassium carbonate, ethylaminoethanol, and N-methyl-2-Pyrollidone (APCEN solvent)
( Taiwan Institute of Chemical Engineers , 2018 , Article)Employing the fall in the CO2 pressure method, the kinetics of the reactive absorption of CO2 in the aqueous blend of potassium carbonate, ethylaminoethanol, and N-methyl-2-Pyrollidone (APCEN solvent) is inspected by ... -
La-Based Perovskites as Oxygen-Exchange Redox Materials for Solar Syngas Production
( Materials Research Society , 2017 , Conference Paper)This contribution reports the synthesis and characterization of La-based perovskites which can be used for the production of syngas via solar thermochemical splitting of H2O/CO2. The La-based perovskites were synthesized ... -
Large CO2 uptake on a monolayer of CaO
( Royal Society of Chemistry , 2017 , Article)Density functional theory calculations are used to study gas adsorption properties of a recently synthesized CaO monolayer, which is found to be thermodynamically stable in its buckled form. Due to its topology and strong ... -
Laundry wastewater treatment using ultrafiltration under different operating conditions
( American Institute of Physics Inc. , 2018 , Conference Paper)The laundry wastewater of one of the hospitals in Qatar was selected and studied. It was found that hospital laundry is releasing considerable amount of wastewater i.e. 1800 - 2500 liters/cycle while washing 40 - 50 kg of ... -
Life cycle assessment of a microbial desalination cell for sustainable wastewater treatment and saline water desalination
( Elsevier Ltd , 2018 , Article)Microbial desalination cells (MDCs), with bifunctional capacity to simultaneously treat wastewater and desalinate seawater at low energy consumption, have attracted great attention in recent years. However, the environmental ... -
Life cycle assessment of osmotic microbial fuel cells for simultaneous wastewater treatment and resource recovery
( Springer Verlag , 2019 , Article)Purpose An osmotic microbial fuel cell (OsMFC) is derived from the integration of a forward osmosis (FO) membrane into a conventional microbial fuel cell (MFC), with enhanced performance in bioelectricity generation from ... -
Life cycle assessment of particulate recycled low density polyethylene and recycled polypropylene reinforced with talc and fiberglass
( Trans Tech Publications Ltd , 2011 , Conference Paper)Although recycled polymers and reinforced polymer composites have been in use for many years there is little information available on their environmental impacts. The goal of the present study is to analyze the environmental ... -
Life cycle environmental impact comparison of bioelectrochemical systems for wastewater treatment
( Elsevier B.V. , 2019 , Conference Paper)Bioelectrochemical systems (BESs) are developed to transform the energy harvested from the biomass into electricity. Different types of BESs including microbial fuel cell (MFC), microbial electrolysis cell (MEC), and ... -
Limitations and high pressure behavior of MOF-5 for CO2 capture
( Royal Society of Chemistry , 2013 , Article)Porous network structures (e.g. metal–organic frameworks, MOFs) show considerable potential in dethroning monoethanol amine (MEA) from being the dominant scrubber for CO2 at the fossil-fuel-burning power generators. In ... -
Limits and possible solutions in quantum dot organic solar cells
( Elsevier Ltd , 2018 , Article Review)In this review article, we present recent advancements in the field of organic photovoltaics (OPV) that have been achieved through the applications of quantum dots (QDs). We describe the leading experimental accomplishments ... -
Lithium loaded coal fly ash as sustainable and effective catalyst for the synthesis of glycerol carbonate from glycerol
( Elsevier Ltd , 2021 , Article)Coal fly ash (CFA) has been employed as a catalytic support for lithium ions by impregnation. The basicity, basic strength, and stability of the resultant catalyst were further tuned by varying active species concentration ... -
Long-term residential exposure to PM2.5, PM10, black carbon, NO2, and ozone and mortality in a Danish cohort
( Elsevier Ltd , 2019 , Article)Air pollutants such as NO2 and PM2.5 have consistently been linked to mortality, but only few previous studies have addressed associations with long-term exposure to black carbon (BC) and ozone (O3). We investigated the ...
