Main content

Thermodynamic Properties and Speciation of Aqueous Methylpiperidines for Applications to Carbon Capture

Show full item record

Title: Thermodynamic Properties and Speciation of Aqueous Methylpiperidines for Applications to Carbon Capture
Author: McGregor, Christine
Department: Department of Chemistry
Program: Chemistry
Advisor: Tremaine, Peter R.
Abstract: Novel alternatives to current carbon capture and sequestration technologies are being developed based on the interesting ability of certain amines, such as methylpiperidines (MP), to undergo liquid-liquid phase separation. This thesis reports the thermodynamic properties of (methylpiperidine + H2O) and (methylpiperidine + H2O + CO2) solutions as model systems for phase separating amines. The standard partial molar volumes and heat capacities for aqueous solutions of N-MP, and N-MP hydrochloride salts were determined by densimetry and calorimetry. A semi-empirical model was fitted to these values which could be used to improve the extrapolation accuracy of the room temperature thermodynamic properties of the amines up to high temperatures. Quantitative 13C NMR was used to determine the speciation and formation constants of aqueous 2-methylpiperidine carbamate, a species not previously reported in literature. Furthermore, the conformation of the carbamate was determined by 2D NMR and supported by density functional theory calculations.
URI: http://hdl.handle.net/10214/10364
Date: 2017-05


Files in this item

Files Size Format View Description
McGregor_Christine_201705_MSc.pdf 2.566Mb PDF View/Open Thesis

This item appears in the following Collection(s)

Show full item record