Thermodynamic Formation Conditions for Propane Hydrates in Equilibrium with Liquid Water

Accurate knowledge for hydrate formation conditions of pure propane in the presence of liquid water is important to avoid flow assurance issues in processing, storage and transportation of liquefied petroleum gas, as well as modeling hydrate based separation processes involving type II hydrates. Experimental dissociation conditions were measured using the phase boundary dissociation method, which has the advantages of reduced experimental time and generation of more equilibrium dissociation data when compared to other hydrate measurement techniques. In this study, phase equilibra measurements are reported for 99.5 mol % and 99.999 mol % propane at the phase boundary for the liquid water (Lw)-hydrate (H)-propane vapour (C3H8 (g)) and Lw -H-liquid propane (C3H8 (l)) loci. The results were modeled using van der Waal and Platteeuw model for the hydrate phase and reduced Helmholtz energy equation for the fluid phases. Results are compared with highly variant literature data, where large deviations observed for the Lw-H-C3H8 (l) phase boundary can be mainly attributed to purity and experimental techniques used in the literature.

Name thesis:degree_name

Master of Science (MSc)

Discipline thesis:degree_discipline

Chemistry

Grantor dc:publisher.institution

Graduate Studies

Year dc:date.issued

2016

Author dc:creator

• Adeniyi, Kayode Israel

Advisor dc:contributor.advisor

• Marriott, Robert

Committee members dc:contributor.committeemember

• Kusalik, Peter
• Birss, Viola

• Education--Sciences

Statement dc:rights

• University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.

Language dc:language.iso

eng

DOI

http://dx.doi.org/10.11575/PRISM/28310

OAI identifier oai:identifier

oai:ucalgary.scholaris.ca:11023/3244