Chemical Engineering: Recent submissions
Now showing items 761-780 of 1174
-
Bio-Inspired Fabrication of Ultrafiltration Membranes incorporating Polydopamine Functionalized Graphene Oxide Nanoparticles
( Qatar University Press , 2021 , Poster)Novel PSF composite UF membranes incorporating low loadings of polydopamine-functionalized graphene oxide particles (rGO-PDA) were fabricated and investigated. The functionalization was confirmed using FTIR-UATR, Raman ... -
Understanding the electrochemical performance of LiNi0. 5Mn1.5O4 coated with Yttria and distributed over graphene nanosheets as cathode in li-ion batteries
( Qatar University Press , 2021 , Poster)LiNi0.5Mn1.5O4 is a promising cathode material for lithium-ion batteries with a high-voltage spinel structure. A microwave-assisted chemical co-precipitation method was used to synthesize Y2O3 coated quasi-spheres of ... -
Membrane Distillation Crystallization Hybrid Process for Zero Liquid Discharge in QAFCO Plant
( Qatar University Press , 2021 , Poster)Qatar fertilizer company (QAFCO) is one of the world’s largest single site producer of ammonia and urea with production capacity of 12,900 metric tons per day. Currently, QAFCO faces major challenges in terms of water ... -
Double layered polymeric coatings for corrosion protection of steel
( Qatar University Press , 2021 , Poster)Corrosion is one of the challenging issues faced by many industries, causing substantial economic losses every year due to the degradation of metallic parts, raising many safety concerns. Therefore, it is of utmost relevance ... -
Coagulant recovery and reuse for drinking water treatment
( Elsevier Ltd , 2016 , Article)Coagulant recovery and reuse from waterworks sludge has the potential to significantly reduce waste disposal and chemicals usage for water treatment. Drinking water regulations demand purification of recovered coagulant ... -
Solar hydrogen production via a samarium oxide-based thermochemical water splitting cycle
( MDPI AG , 2016 , Article)The computational thermodynamic analysis of a samarium oxide-based two-step solar thermochemical water splitting cycle is reported. The analysis is performed using HSC chemistry software and databases. The first (solar-based) ... -
Surface characterization of mild steel exposed to atmosphere after being treated by sodium benzoate and dicyclohexylamine nitrite
( Emerald Group Publishing Ltd. , 2016 , Article)Purpose: The purpose of this study was to investigate the performances of two inhibitors in controlling corrosion of steel products in industrial and marine atmosphere. Design/methodology/approach: Corrosion rates were ... -
Comparative study on low and high pressure CO2 adsorption capacity of organic materials
( AIChE , 2016 , Conference Paper)Application of solid sorbents for CO2 capture and separation has been under consideration since last decades owing to the promising feature of repeatable use, low cost of regeneration and thermo physical stability. However, ... -
High performance CO2 filtration and sequestration by using bromomethyl benzene linked microporous networks
( Royal Society of Chemistry , 2016 , Article)Porous solid sorbents have been investigated for the last few decades to replace the costly amine solution and explore the most efficient and economical material for CO2 capture and storage. Covalent organic polymers (COPs) ... -
Sustained solar fuel production in multiple thermochemical cycles using sol-gel derived ferrite nanopowders
( TechConnect , 2016 , Conference Paper)In this paper, the sol-gel synthesis of Mg-doped Niferrite i.e. Ni-Mg-ferrite was attempted by using propylene oxide (PO) as a proton scvanger. Effects of two important synthesis paramaters such as amount of PO added during ... -
Challenges in the design and operation of an efficient photobioreactor for microalgae cultivation and hydrogen production
( Springer India , 2016 , Book chapter)The major challenge in the production of biofuels from microalgae is the need to generate sufficient quantities of microalgal biomass and an environmentally friendly and cost-effective method for extraction of oil from the ... -
Safety and techno-economic analysis of ethylene technologies
( Elsevier Ltd , 2016 , Article)Recent growth in shale gas production has contributed to the interest in establishing numerous petrochemical plants for shale-gas monetization. The ethylene industry is one of the main beneficiaries of such growth because ... -
A molecular dynamics study on aminoacid-based ionic liquids
( Elsevier , 2016 , Article)The properties of aminoacid based ionic liquids are studied using classic molecular dynamic simulations. Ionic liquids comprising glycine, serine, alanine and phenyl alanine anions combined with 1-ethyl-3-methylimidazolium, ... -
A mixed iron–manganese based pyrophosphate cathode, Na2Fe0.5Mn0.5P2O7, for rechargeable sodium ion batteries
( Royal Society of Chemistry , 2016 , Article)The development of secondary batteries based on abundant and cheap elements is vital. Among various alternatives to conventional lithium-ion batteries, sodium-ion batteries (SIBs) are promising due to the abundant resources ... -
Flavonol-carbon nanostructure hybrid systems: A DFT study on the interaction mechanism and UV/Vis features
( Royal Society of Chemistry , 2016 , Article)Flavonols are a class of natural compounds with potential biological and pharmacological applications. They are also natural pigments responsible for the diversity of colors in plants. Flavonols offer the possibility of ... -
An Experimental and Kinetic Study of the Sorption of Carbon Dioxide onto Amine-Treated Oil Fly Ash
( Hindawi Publishing Corporation , 2016 , Article)A new CO2 adsorbent is produced from waste oil fly ash (OFA). Ammonium hydroxide solution is used to convert OFA to activated carbon. Then, the product is used for the adsorption of CO2 from a nitrogen/carbon dioxide ... -
Doubly dual nature of ammonium-based ionic liquids for methane hydrates probed by rocking-rig assembly
( Royal Society of Chemistry , 2016 , Article)This work presents a systematic study of methane hydrate inhibition in the presence of five structurally variable ionic liquids (ILs) belonging to the ammonium family—viz., tetra-alkylammonium acetate (TMAA), choline ... -
Synthesis, characterization and applications of electroless Ni-B coatings-A review
( Electrochemical Science Group , 2016 , Article Review)Electroless nickel coating process has experienced remarkable modifications since its invention by Branner and Riddell in 1946. This process has proven to be very useful for applying uniform, hard, wear resistant coatings ... -
Observation of the wrapping mechanism in amine carbon dioxide molecular interactions on heterogeneous sorbents
( Royal Society of Chemistry , 2016 , Article)Liquid, solvated amine based carbon capture is the core of all commercial or planned CO2 capture operations. Despite the intense research, few have looked systematically into the nature of amine molecules and their CO2 ... -
Heat powered water pump for reverse osmosis desalination
( TechConnect , 2016 , Conference Paper)Current desalination techniques are typically very energy intensive: energy consumption can account for up to 70% of the desalination costs. To improve economics of water desalination plants innovative energy efficient, ...
