Browsing Chemical Engineering by Title
Now showing items 799-818 of 990
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Reduced Order Modeling and Scale-up of an Entrained Flow Gasifier
(University of Waterloo, 2017-01-16)Climate change has increased attention towards reduction of carbon dioxide (CO2) emissions and other heat-trapping gases to the atmosphere. This has affected the operation of process industries, particularly solid fuel ... -
Reducing Environmental Impacts of The Petroleum Refining Operations: Studies Related to Water Treatment and Carbon Dioxide Emissions Management
(University of Waterloo, 2018-12-21)Petroleum refining is one of the most important chemical processing industries, converting crude oil into many usable and useful products, but it can cause adverse environmental impacts. Two environmental issues were ... -
Reduction of CO2 Emissions from Cement Plants
(University of Waterloo, 2007-05-14)Reduction of CO2 Emissions from Cement Plants Governments around the world have been pressured by society to discuss environmental issues, and global warming is one of the most controversial debates. The Kyoto Protocol ... -
Reduction of Hospital Environmental Contamination Using Automatic UV Room Disinfection
(Global Biorisk Advisory Council, 2021-08-21)The use of mobile ultraviolet (UV) germicidal irradiation has been documented to reduce contamination levels and HAIs in hospitals. However, there is a general lack of information on the efficacy of wall-mounted, automated ... -
Remediation of Cellulose Acetate Gas Separation Membranes Contaminated by Heavy Hydrocarbons
(University of Waterloo, 2012-04-04)Polymeric membranes have been essential to increasing the efficiency of membrane separation processes. The viability of membrane systems for industrial gas applications lies in the tolerance of such membranes to contamination. ... -
Removal of Bromophenols from Wastewater by Sorption
(University of Waterloo, 2018-09-20)Poly(ether-block-amide) copolymer (PEBA) was used as an adsorbent for sorptive removal of bromophenols, particularly 4-bromophenol (BP), 2,6-dibromophenol (DBP), and 2,4,6-tribromophenol (TBP) from wastewater. Batch sorption ... -
Removal of DDT from Soil using Combinations of Surfactants
(University of Waterloo, 2010-05-19)Organochlorine pesticides (OCPs) were used in agriculture throughout the world for a long time because they are very effective for pest control, but OCPs such as DDT and its metabolites can threaten human health and ... -
Removal of N,N-dimethylacetamide from water by adsorption
(University of Waterloo, 2017-05-24)Discharge of untreated industrial effluents containing N,N-dimethylacetamide (DMAc) is hazardous to the environment. This study explores the separation of DMAc from wastewater using adsorption on activated carbons. In ... -
Renewable Syngas Generation and Biogas/Landfill Gas Upgrade via Thermocatalytic Conversion of Carbon Dioxide
(University of Waterloo, 2017-12-18)The reverse water gas shift (RWGS) and thermocatalytic Sabatier reaction can be potentially used to convert captured CO2 or biogas/landfill gas into renewable synthetic fuels via syngas generation or production of renewable ... -
Renewable Thermoplastic Composites for Environmentally Friendly and Sustainable Applications
(University of Waterloo, 2013-01-24)Thermoplastic composites using natural fibres are studied intensively and widely used in applications including automotive, packaging, consumer goods and construction. Good balance of mechanical properties, processability ... -
Revealing the Mechanical Properties of Metal Pillars Using Experimental Methods and Molecular Dynamic Simulations
(University of Waterloo, 2015-07-28)The mechanical properties of nano-crystalline copper pillars were investigated by both experimental methods and Molecular Dynamic Simulations in this study. Electron beam lithography and electroplating were used to fabricate ... -
Reverse Osmosis Desalination and Hybrid Membrane Processes for Brine Treatment
(University of Waterloo, 2019-12-11)Waste from seawater reverse osmosis desalination processes is commonly referred to as brine which is one of the obstacles creating environmental and economic inefficiencies. The objective of this work is to simulate the ... -
Reverse Osmosis Membranes for Desalination of Brackish Water
(University of Waterloo, 2020-12-22)Reverse osmosis (RO), which is commonly used for different water purification and desalination applications, is a remarkable process to separate dissolved inorganic and organic compounds from water. Over traditional methods ... -
Reverse Water Gas Shift Reaction over High Surface Area γ-Al2O3 Supported Mo2C Nanoparticles Synthesized by Reverse Microemulsion Method
(University of Waterloo, 2019-08-23)Increasing concentrations of greenhouse gases (GHG), especially carbon dioxide (CO2), in the atmosphere are forecasted to result in adverse environmental impacts. One attractive approach for mitigation of CO2 emissions is ... -
Rheological Modification of Polypropylene by Incorporation of Long Chain Branches Using UV Radiation
(University of Waterloo, 2014-11-21)Modification of polypropylene (PP) is important as it aims at changing the molecular structure of PP and synthesizing different grades of PP for different processing applications. These changes include narrowing of the ... -
Rheological Properties of Tailor-Made Metallocene and Ziegler-Natta Based Controlled Rheology Polypropylenes
(University of Waterloo, 2015-09-24)Controlled rheology polypropylenes (CRPP) have been produced industrially by peroxide induced degradation in post-polymerization reactive extrusion (REX) operations. This has been well developed for commodity Ziegler-Natta ... -
Rheology and Flow Behavior of Starch Nanoparticle Dispersion
(University of Waterloo, 2017-07-10)With the extensive awareness of environment friendly around the world, more and more researchers are currently developing and modifying bio-based materials that have various potential applications in different fields, such ... -
Rheology and Pipeline Flow Behavior of Fumed Silica Nanoparticle Suspensions
(University of Waterloo, 2018-05-08)Suspensions are used in a wide variety of industrial and household applications; some examples being paints, ink, wastewater streams, cough syrups, and sauces. Rheology of suspensions depends on various factors such as the ... -
Rheology of Cellulose Nanocrystal Dispersions and Pickering Emulsions Stabilized by Cellulose Nanocrystals
(University of Waterloo, 2023-08-17)Dispersions and Emulsions are prevalent in our society and can be seen in various applications and industries. These include: (a) the food industry, for various products such as mayonnaise, salad dressings, sauces, and ice ... -
Rheology of Suspensions of Solid Particles in Liquids Thickened by Starch Nanoparticles
(University of Waterloo, 2024-05-24)This study explores the rheological characteristics of suspensions containing solid particles dispersed in aqueous matrix phase thickened with starch nanoparticles (SNP). The SNP concentration ranged from 5 to 35 wt% ...