The effect of pressure, temperature and salinity on CO2 dissolution into H2O + NACL

Satoshi Someva, Masahiro Nishio, Baixin Chen, Koji Okamoto, Tsutomu Uchida

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

3 Citations (Scopus)

Abstract

Sequestration of liquid CO2 into intermediate depth ocean has been considered as a means to reduce atmospheric concentration of this greenhouse gas and mitigate global warming. A number of CO2 droplets are released into ocean and are diluted. The CO2 solubility into sea water is very important in order to control the amount of released CO2 and environmental impact. Under conditions in the intermediate ocean, that is, high pressure and low temperature, the CO2 clathrate hydrate film was formed on the CO2 droplet surface. The hydrate film has been considered to decrease the dissolution rate and the CO2 concentration at the boundary layer on the droplet surface. In the experiments, LIF technique was used. The CO2 dissolved water emitted intense fluorescence, while the CO2 itself did not illuminate. Therefore, we could know the shrinking rate of CO2 droplet diameter accurately. The CO2 solubility was derived by using the measured shrinking rate. The solubility was investigated qualitatively with some variable parameters, i.e., pressure, temperature and salinity.

Original languageEnglish
Title of host publicationFluids engineering division 2000
Subtitle of host publicationproceedings of the ASME presented at the 2000 ASME International Mechanical Engineering Congress and Exposition, November 5-10, 2000, Orlando, Florida
PublisherAmerican Society of Mechanical Engineers
Pages197-203
Number of pages7
ISBN (Print)0791819256, 9780791819258
Publication statusPublished - 2000

Publication series

NameFED
PublisherASME
Volume253
ISSN (Print)0888-8116

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Someva, S., Nishio, M., Chen, B., Okamoto, K., & Uchida, T. (2000). The effect of pressure, temperature and salinity on CO2 dissolution into H2O + NACL. In Fluids engineering division 2000: proceedings of the ASME presented at the 2000 ASME International Mechanical Engineering Congress and Exposition, November 5-10, 2000, Orlando, Florida (pp. 197-203). (FED; Vol. 253). American Society of Mechanical Engineers.