Now showing items 1-10 of 28
Thrombomodulin/heparin functionalized membrane-mimetic assemblies: strategies for generating an actively anti-thrombogenic surface
(Georgia Institute of Technology, 2005-07-20)
It has been postulated that the control of thrombus formation on molecularly engineered surfaces is an important step in developing clinically durable small-diameter vascular prostheses. This has led to designing a ...
Novel Pervaporation for Separating Acetic Acid and Water Mixtures Using Hollow Fiber Membranes
(Georgia Institute of Technology, 2005-06-27)
Commercial pure terephthalic acid (PTA) manufacturing generates process streams mainly containing acetic acid (HAc) and water. A large financial incentive exists to replace the costly and energy intensive distillation ...
Membrane degradation studies in PEMFCs
(Georgia Institute of Technology, 2009-07-09)
An important challenge for PEMFC is stability and durability of the membrane separator. In this dissertation, we applied both experimental and modeling methods to investigate the chemical durability of PFSA membranes for ...
Chiral separation using hybrid of preferential crystallization moderated by a membrane barrier
(Georgia Institute of Technology, 2010-03-08)
The major innovation of this work is an establishment of a novel chiral separation process using preferential crystallization coupled with a membrane barrier. This hybrid process was proved to be promising from a significant ...
The effect of pore dimension of zeolites on the separation of gas mixtures
(Georgia Institute of Technology, 2010-04-06)
We examined the effect of the pore dimension of zeolites on the separation of gas mixtures using atomistic simulation methods. We studied two categories of the zeolites with small pores: pore modified silicalite for ...
Cross-linkable polyimide blends for stable membranes
(Georgia Institute of Technology, 1996-12)
Investigation of Dithiolenes for Propylene/Propane Membrane Separations
(Georgia Institute of Technology, 2007-08-24)
Polyimide membranes containing nickel dithiolenes were investigated for the separation of propylene and propane. Permeation and sorption experiments were conducted as well thermal property analyses. Results indicate that ...
First-principles study of palladium-based metal alloys as hydrogen purification membranes
(Georgia Institute of Technology, 2009-11-10)
Hydrogen is a good candidate as a future energy source. Current technologies generate hydrogen from hydrocarbons as mixtures with other species like CO and CO₂. High flux and resistance to contaminants are required for ...
Polymeric membranes for super critical carbon dioxide (scCO2) separations
(Georgia Institute of Technology, 2009-03-23)
Providing an energy efficient recycle for the Teflon® synthesis process is of great interest due to environmental and economic reasons. This recycle step involves separating CO2 from a stream containing scCO2 and valuable ...
Engineering nanoporous materials for application in gas separation membranes
(Georgia Institute of Technology, 2010-08-11)
The main theme of this dissertation is to engineer nanoporous materials and nanostructured surfaces for applications in gas separation membranes. Tunable methods have been developed to create inorganic hydroxide nanostructures ...