Hydrate dissociation condition measurement of CO2-rich mixed gas in the presence of methanol/ethylene glycol and mixed methanol/ethylene glycol + electrolyte aqueous solution

• Main Authors: Nasir, Q., Lau, K.K., Lal, B., Sabil, K.M.
• Format: Article
• Published: American Chemical Society 2014
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84920487936&doi=10.1021%2fje5008313&partnerID=40&md5=2c58e6bce84bd47a054c168d21d57c13; http://eprints.utp.edu.my/31091/
• Institution: Universiti Teknologi Petronas

In this work, the hydrate dissociation condition for carbon dioxide rich gas mixture in the presence of methanol, methanol + sodium chloride or calcium chloride, and ethylene glycol, ethylene glycol + sodium chloride or calcium chloride aqueous solution, were measured and reported. The measurements are carried out at temperature and pressure range of (263.85 to 284.75) K and (2.76 to 12.08) MPa. All data were measured using the isochoric pressure search method. In order to exhibit the inhibition effect of above-mentioned aqueous solution, a comparison was made between experimental data of carbon dioxide rich gas mixture in the presence of pure water and aqueous solutions consist of inhibitor and electrolytes. Furthermore, a thermodynamic model was used to correlate the experimental values. © 2014 American Chemical Society.