Browsing Department of Chemical Engineering Graduate Theses by Title
Now showing items 261-280 of 284
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A Study of Polymer-Small Molecule Interactions for Solid-Liquid Two Phase Partitioning Bioreactors With Emphasis on the Bioproduction of 2-Phenylethanol
(2009-07-02)Biphasic systems have been studied for in situ product removal (ISPR), and have shown improvements in bioreactor performance. With immiscible solvents, concerns associated with solvent biocompatibility, bioavailability and ... -
Study of Sorption, Heat and Mass Transfer During Condensed Mode Operation of Gas Phase Ethylene Polymerization on Supported Catalyst
(2014-07-15)In the current thesis study it is intended to investigate the potential effect of the inert condensing agent (ICA) of n-hexane used in condensed mode operation on the solubility of ethylene in produced polyethylene (PE) ... -
Study of the Electrochemical, Physical and Morphological Characteristics of Anode Catalysts for Perfluorosulfonic Acid (PFSA) Membrane Water Electrolysers
A number of supported and un-supported Oxygen Evolution Reaction (OER) iridium based electrocatalysts for Polymer Electrolyte Membrane Water Electrolysis (PEMWE) were synthesized using a polyol method. The electrocatalysts ... -
Study on Energy Recovery and Anhydrite Production from Elemental Sulfur
(2015-08-20)An industrial-scale model was developed for production of anhydrite (CaSO4) via oxidation of elemental sulfur (S) with calcite (CaCO3), and potential electrical generation. In the proposed system, sulfur is first oxidized ... -
Surface Modification of Cellulose Nanocrystals with CO2-Responsive Polymers via Reversible Deactivation Radical Polymerization
Cellulose is the most abundant natural polymer on Earth. From cellulose, cellulose nanocrystals (CNC) can be obtained through various hydrolysis processes. There is interest in grafting different types of polymers onto CNC ... -
Synthesis and Reinforcement of Peroxide-Cured Butyl Rubber Thermosets
(2014-11-26)Isobutylene-rich elastomers provide the oxidative stability and impermeability required by many industrial applications. Halogenated derivatives support a wide range of chemical modification processes that can overcome ... -
The Synthesis of Cellulose Graft Copolymers Using Cu(0)-Mediated Polymerization
(2013-05-29)Cellulose is the most abundant renewable polymer on the planet and there is great interest in expanding its use beyond its traditional applications. However, its hydrophilicity and insolubility in most common solvent ... -
The Synthesis of Succinic Acid and its Extraction From Fermentation Broth Using a Two-Phase Partitioning Bioreactor
(2011-04-18)Succinic Acid (SA) is an intermediate in the production of fine and commodity chemicals. No commercial SA bioproduction process exists due to process limitations including end product inhibition and high product separation ... -
Synthesis, Polymerization Kinetics, and Applications of Novel Macromonomer-Based Degradable Materials
The ability to design materials with controlled degradation rates has stimulated the development of polyesters for a range of applications, from biomedical to environmental. Although attractive because they become increasingly ... -
System and Component Analysis of a 1kW Diesel fuelled SOFC system
(2013-10-30)The first part of this thesis intends to create a fuel processor model capable of generating 1kW power as output through the use of a solid oxide fuel cell system. The fuel processor system consists of a reformer, heat ... -
System Study and CO2 Emissions Analysis of a Waste Energy Recovery System for Natural Gas Letdown Station Application
(2010-08-31)A CO2 emission analysis and system investigation of a direct fuel cell waste energy recovery and power generation system (DFC-ERG) for pressure letdown stations was undertaken. The hybrid system developed by FuelCell Energy ... -
Thermal Degradation of PC and PA6 During Laser Transmission Welding (LTW)
(2013-09-28)In laser transmission welding (LTW), a laser beam passes through the laser-transparent part and is absorbed by carbon black (CB) in the laser-absorbent part. This causes a temperature rise at the interface between the parts ... -
Thermoplastic-based conductive composites containing multi-wall carbon nanotubes aligned under the application of external electric fields
(2014-11-05)The objective of this thesis is to prepare thermoplastic/multi-wall carbon nanotubes (MWCNTs) and to apply external alternating current (AC) electric fields to achieve enhanced conductivity and dielectric properties. The ... -
Tissue-specific bioscaffolds for adipose-derived stem/stromal cell expansion and delivery
(2016-07-29)Decellularized adipose tissue (DAT) is a promising biomaterial for soft tissue regeneration, and it provides a highly conducive microenvironment for human adipose-derived stem/stromal cell (ASC) attachment, proliferation, ... -
Toll-like receptor mediated responses to adsorbed damage-associated molecular patterns on biomaterial surfaces
The foreign body reaction is a chronic inflammatory response to an implanted biomaterial that ultimately leads to fibrous encapsulation of the implant. It is widely accepted that the host response to implanted biomaterials ... -
Towards Improved Process Development for Biolubricant Production from Vegetable Oils
Biolubricants are lubricants with a base oil produced from biological feedstock. Ester-based biolubricants enjoy the most widespread commercial use, even though complex chemical modifications are required to improve their ... -
The Treatment of Benzene, Toluene, Ethylbenzene and o-Xylene Using Two-Phase Partitioning Bioscrubbers
(2009-08-20)This thesis examined the biological treatment of gas streams containing benzene, toluene, ethylbenzene and o-xylene (BTEX) using solid-liquid two-phase partitioning bioscrubbers (SL-TPPBs). SL-TPPBs consist of a cell ... -
Ultrasonically Enhanced Mass Transport and Degradation of Polycyclic Aromatic Hydrocarbons in Solid-Liquid Two Phase Partitioning Systems
(2009-09-04)The remediation of soil contaminated with polycyclic aromatic hydrocarbons (PAHs) is endorsed by environmental protection agencies worldwide. Recent studies demonstrated the removal of these contaminants from soil utilizing ... -
The use of high pressure carbon dioxide for in situ product recovery of butyric acid in a two phase partitioning bioreactor
(2014-08-21)The production of organic acids in solid-liquid two-phase partitioning bioreactors (TPPBs) is challenging, as acids absorb into amorphous polymers only in their undissociated form. Thus, at near-neutral fermentation pH ... -
Use of Spatially Non-Uniform Electric Fields for Contact-Free Assembly of Three-Dimensional Structures from Colloidal Particles
(2012-01-31)In this thesis, three specific research contributions to the use of non-uniform electric field driven colloidal assembly are described. The first relates to experimental work using dielectrophoretic and electrohydrodynamic ...