Measurement of the critical point for multi-component fluids by visible-type autoclave

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The critical points of CO 2-H 2O, NaCl-H 2O and CO 2-NaCl-H 2O fluid mixtures were measured by observing the disappearance and reappearance of the meniscus by using the visible-type autoclave. The critical points of CO 2-H 2O and NaCl-H 2O fluids shift linearly with the variation in ion concentrations. The general tendency of the critical point shifting of H 2O-NaCl- CO 2 multi-component fluid was similar to the H 2O-CO 2 fluid. However at higher NaCl concentrations, the variation in the critical point was higher for higher CO 2 concentrations. This phenomenon is believed to be due to the interaction of ion or ions with water molecules in the fluid.

Original languageEnglish
Title of host publicationWater-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
Pages207-211
Number of pages5
Publication statusPublished - 2007 Dec 1
Event12th International Symposium on Water-Rock Interaction, WRI-12 - Kunming, China
Duration: 2007 Jul 312007 Aug 4

Publication series

NameWater-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
Volume1

Other

Other12th International Symposium on Water-Rock Interaction, WRI-12
CountryChina
CityKunming
Period07/7/3107/8/4

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Water Science and Technology

Fingerprint Dive into the research topics of 'Measurement of the critical point for multi-component fluids by visible-type autoclave'. Together they form a unique fingerprint.

Cite this