Measurement of CO2 solubility in pure water and the pressure effect on it in the presence of clathrate hydrate

Satoshi Someya, Shigeru Bando, Baixin Chen, Yongchen Song, Masahiro Nishio

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The solubility of CO2 in pure water was investigated under high-pressure conditions, from 7 to 12 MPa. Temperature varied between 2.5-20 °C. CO2 clathrate hydrate formed at temperatures below approximately 10°C. Saturated concentrations of CO2 were determined from expanding dissolved gas. The solubility in the presence of the hydrate decreased with decreasing temperature and with decreasing pressure, although some researchers reported it decreased with higher-pressure conditions at about 7°C. Many other researchers reported that the pressure conditions did not affect the solubility in the presence of the hydrate. Although this is mostly correct, we did confirm a small difference in solubility due to pressure conditions.

Original languageEnglish
Pages (from-to)2503-2507
Number of pages5
JournalInternational Journal of Heat and Mass Transfer
Volume48
Issue number12
DOIs
Publication statusPublished - Jun 2005

Keywords

  • Carbon dioxide
  • Clathrate hydrate
  • Gas expansion method
  • Pressure effect
  • Solubility
  • Temperature effect

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy(all)
  • Mechanical Engineering

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