Gas Processing Center: Recent submissions
Now showing items 361-380 of 490
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Evaluation of the current state and perspective of wastewater treatment and reuse in Qatar
( Desalination Publications , 2017 , Article)In Qatar, many freshwater resources have already been depleted due to the overconsumption as a result of the population and economic growth. Moreover, due to the lack of sufficient sewage treatment infrastructure, Qatar ... -
Effects of sodium carbonate addition, heat and agitation on swelling and rheological behavior of Ca-bentonite colloidal dispersions
( Elsevier Ltd , 2017 , Article)The effects of the addition of sodium carbonate (Na2CO3) and the subsequent simultaneous heating and stirring on the rheological behavior of Ca-bentonite colloidal dispersions have been investigated in this study. Ca-bentonite ... -
Corrosion behavior of API X100 steel material in a hydrogen sulfide environment
( MDPI AG , 2017 , Article)Recently, the API X100 steel has emerged as an important pipeline material for transportation of crude oil and natural gas. At the same time, the presence of significant amounts of hydrogen sulfide (H2S) in natural gas and ... -
Fabrication of polysulfone nanocomposite membranes with silver-doped carbon nanotubes and their antifouling performance
( John Wiley and Sons Inc. , 2017 , Article)In this study, polysulfone (PSf)/silver-doped carbon nanotube (Ag-CNT) nanocomposite membranes were prepared by a phase-inversion technique; they were characterized and evaluated for fouling-resistant applications with ... -
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 ... -
Insights into charge carrier dynamics in organo-metal halide perovskites: From neat films to solar cells
( Royal Society of Chemistry , 2017 , Article Review)Organo-metal halide perovskites have recently obtained world-wide attention as promising solar cell materials. They have broad and strong light absorption along with excellent carrier transport properties which partially ... -
Heat duty, heat of absorption, sensible heat and heat of vaporization of 2–Amino–2–Methyl–1–Propanol (AMP), Piperazine (PZ) and Monoethanolamine (MEA) tri–solvent blend for carbon dioxide (CO2) capture
( Elsevier Ltd , 2017 , Article)Chemical absorption using reactive amines for carbon dioxide (CO2) capture is characterized by absorption heat, heat of desorption and heat duty for regeneration (Qreg, kJ/mol CO2). This study experimentally investigated ... -
Enhanced Size Selection in Two-Photon Excitation for CsPbBr3 Perovskite Nanocrystals
( American Chemical Society , 2017 , Article)Cesium lead bromide (CsPbBr3) perovskite nanocrystals (NCs), with large two-photon absorption (TPA) cross-section and bright photoluminescence (PL), have been demonstrated as stable two-photon-pumped lasing medium. With ... -
Optimization of cultivation conditions for combined nutrient removal and CO2 fixation in a batch photobioreactor
( John Wiley and Sons Ltd , 2017 , Article)BACKGROUND The application of Chlorella vulgaris for simultaneous CO2 biofixation and nutrient removal has been optimised using response surface methodology (RSM) based on Box Behnken design (BBD). Experimental conditions ... -
Size-And Wavelength-Dependent Two-Photon Absorption Cross-Section of CsPbBr3 Perovskite Quantum Dots
( American Chemical Society , 2017 , Article)All-inorganic colloidal perovskite quantum dots (QDs) based on cesium, lead, and halide have recently emerged as promising light emitting materials. CsPbBr3 QDs have also been demonstrated as stable two-photon-pumped lasing ... -
Photostability of the Oleic Acid-Encapsulated Water-Soluble CdxSeyZn1-xS1-y Gradient Core-Shell Quantum Dots
( American Chemical Society , 2017 , Article)Composite systems where quantum dots (QDs) are combined with other nanomaterials (e.g., gold nanorods) in aqueous solutions have attracted broad attention - both for their potential in applications and for studies of ... -
Controlled growth of Cu2O thin films by electrodeposition approach
( Elsevier Ltd , 2017 , Article)Thin films of Cu2O comprised of wavelike surface characteristic of compact nanoparticles were synthesized using a facile and cost-effective electrodeposition approach. The distinct surface morphologies with well-aligned ... -
The effect of site-specific spectral densities on the high-dimensional exciton-vibrational dynamics in the FMO complex
( Elsevier B.V. , 2017 , Article)The coupled exciton-vibrational dynamics of a three-site model of the FMO complex is investigated using the Multi-layer Multi-configuration Time-dependent Hartree (ML-MCTDH) approach. Emphasis is put on the effect of the ... -
Catalytic evaluation of Ni-based nano-catalysts in dry reformation of methane
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)Development of a highly efficient, nickel-based nano-catalyst in the carbon dioxide reformation of methane is reported. The alumina supported Ni-based catalyst with a metal loading of 5wt% was prepared via solution combustion ... -
Corrosion inhibition of API X120 steel in a highly aggressive medium using stearamidopropyl dimethylamine
( Elsevier B.V. , 2017 , Article)The inhibition efficiency of the stearamidopropyl dimethylamine (SAPDA) surfactant for the corrosion of API X120 steel in a 0.5 M HCl solution at different temperatures was investigated using different electrochemical and ... -
Phyllosilicate nanoclay-based aqueous nanoparticle sorbent for CO2 capture at ambient conditions
( Elsevier Ltd , 2017 , Article)We report a new and effective aqueous sorbent for CO2 capture at ambient conditions based on aminopropyl magnesium phyllosilicate nanoparticles (aminoclay). Combining the advantages of both liquid and solid amine sorbents, ... -
Influence of Surfactant Structure on the Stability of Water-in-Oil Emulsions under High-Temperature High-Salinity Conditions
( Hindawi Limited , 2017 , Article)Emulsified water-in-oil (W/O) systems are extensively used in the oil industry for water control and acid stimulation. Emulsifiers are commonly utilized to emulsify a water-soluble material to form W/O emulsion. The selection ... -
Instability in CH3NH3PbI3 perovskite solar cells due to elemental migration and chemical composition changes
( Nature Publishing Group , 2017 , Article)Organic-inorganic halide perovskites have rapidly grown as favorable materials for photovoltaic applications, but accomplishing long-term stability is still a major research problem. This work demonstrates a new insight ... -
Advanced wastewater treatment using microalgae: Effect of temperature on removal of nutrients and organic carbon
( Institute of Physics Publishing , 2017 , Conference Paper)This study evaluated the use of mixed indigenous microalgae (MIMA) as a treatment process for wastewaters and CO2 capturing technology at different temperatures. The study follows the growth rate of MIMA, CO2 Capturing ... -
High-efficiency c-Si based interdigitated point contact back heterojunction solar cells
( Springer New York LLC , 2017 , Article)We report on the modeling and performance optimization studies of point contact back heterojunction (BHJ) solar cells. BHJ solar cell technology is a combination of front heterojunction (a-Si:H/c-Si) solar cell technology ...