Title:
Measurement of binary phase equilibria and ternary/quaternary gas antisolvent (GAS) system measurement and analysis

Simple item page
dc.contributor.advisor Eckert, Charles A.
dc.contributor.author Taylor, Donald Fulton en_US
dc.contributor.committeeMember Teja, Amyn S.
dc.contributor.committeeMember Ludovice, Peter J.
dc.contributor.department Chemical Engineering en_US
dc.date.accessioned 2005-03-02T22:36:37Z
dc.date.available 2005-03-02T22:36:37Z
dc.date.issued 2004-07-12 en_US
dc.description.abstract The work conducted in this thesis is two-fold. First, binary vapor liquid equilibria of several solvent/CO2 systems are measured at 40 ?? The systems analyzed are all gas-expanded liquids (GXLs) characterized with a Jerguson Cell apparatus. A Jerguson cell is a windowed pressure vessel that allows one to measure the height of the condensed liquid. Using this height and the known overall contents in the cell, one can calculate the liquid composition without using any external sampling. Secondly, this same setup is attached to a sampling system, and solid solubility (fractional crystallization) is measured for various GXL systems. The CO2 acts as an antisolvent in what is commonly known as a gaseous antisolvent (GAS) system. Essentially, this work shows that expansion of the tested solvents with CO2 will cause the precipitation of the solid solute. This work also analyzes the affect two solutes have on each other in a quaternary GAS system. Gas-expanded liquids combine desirable gaseous properties and liquid properties to yield a very useful solvent for many applications. An advantage of GXLs is that a relatively small change in pressure or temperature can greatly affect the solvation properties. The tunability of GXLs increases as the amount of the gas (usually CO2) increases in the liquid phase. With the benign chemical nature and environmental impact of CO2 processing, GXLs and supercritical fluids (SCFs) have garnered a lot of attention for industry and academia. Supercritical fluids in this work refer to pure CO2 above its critical temperature and pressure. en_US
dc.description.degree M.S. en_US
dc.format.extent 779341 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/5077
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Gaseous anitsolvent system en_US
dc.subject Gas-expanded liquids
dc.subject Phase equilibria
dc.subject.lcsh Solvents en_US
dc.subject.lcsh Vapor-liquid equilibrium en_US
dc.subject.lcsh Carbon dioxide en_US
dc.subject.lcsh Crystallization en_US
dc.title Measurement of binary phase equilibria and ternary/quaternary gas antisolvent (GAS) system measurement and analysis en_US
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.advisor Eckert, Charles A.
local.contributor.corporatename School of Chemical and Biomolecular Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication 4b9f2e38-c211-4513-bc14-84855881983c
relation.isOrgUnitOfPublication 6cfa2dc6-c5bf-4f6b-99a2-57105d8f7a6f
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
taylor_donald_f_200407_MS.pdf
Size:
761.08 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Theses and Dissertations