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

doi:10.1016/j.ijheatmasstransfer.2004.12.043

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 journal › Article › peer-review

38 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 language	English
Pages (from-to)	2503-2507
Number of pages	5
Journal	International Journal of Heat and Mass Transfer
Volume	48
Issue number	12
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2004.12.043
Publication status	Published - 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

Access to Document

10.1016/j.ijheatmasstransfer.2004.12.043

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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.",

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AU - Someya, Satoshi

AU - Bando, Shigeru

AU - Chen, Baixin

AU - Song, Yongchen

AU - Nishio, Masahiro

PY - 2005/6

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N2 - 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.

AB - 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.

KW - Carbon dioxide

KW - Clathrate hydrate

KW - Gas expansion method

KW - Pressure effect

KW - Solubility

KW - Temperature effect

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