IDSSE OpenIR  > 深海科学研究部  > 深海极端环境模拟研究实验室
Determination of CO2 Solubility in Water and NaCl Solutions under Geological Sequestration Conditions Using a Fused Silica Capillary Cell with in Situ Raman Spectroscopy
Wang, Junliang1; He, Benben1; Xie, Lifeng1; Bei, Ke1,2; Li, Guixuan1; Chen, Zuhua3; Chou, I-Ming4; Lin, Chunmian1; Pan, Zhiyan1
2019-06-01
Source PublicationJOURNAL OF CHEMICAL AND ENGINEERING DATA
ISSN0021-9568
Volume64Issue:6Pages:2484-2496
AbstractTo investigate the solubility of carbon dioxide (CO2) in geological fluids at different temperatures and pressures, we developed a method for measuring solubility using an optically transparent fused silica capillary cell as a high-pressure optical cell combined with Raman spectroscopy under geological sequestration conditions (temperatures of up to 353.15 K and pressure of up to 30.0 MPa). On the basis of the fact that the band intensity of an active Raman species is proportional to its concentration, we determined the linear correlation between the known CO2 concentration and the ratio of the Raman peak heights of CO2 to H2O (.vCO(2)/vH,o) in homogeneous CO2-H2O and CO2-H2O-NaCl systems. Our results indicate that the Raman peak height ratio is a function of the CO2 concentration and that the pressure and temperature do not significantly affect the relationship between the CO2 concentration and nu(CO2)/nu(H2O) within the experimental P-T-x conditions. The nu(CO2)/nu(H2O)) values of the CO2-saturated solutions were determined by simulating the CO2 geological sequestration T-P-x conditions. Then, the CO2 solubilities were calculated using the linear relationship. Our results indicate that the method is feasible and that the solubility of CO2 in H2O or NaCl solutions decreases with increasing temperature, increases with increasing pressure, and decreases with increasing salinity. On the basis of a comparison between our experimental data and the results of the previous model, our method provides satisfactory results.
DOI10.1021/acs.jced.9b00013
Indexed BySCI ; SCI
Funding OrganizationNatural Science Foundation of the Zhejiang Province of China ; Natural Science Foundation of China ; Hadal-trench Research Program of the Chinese Academy of Sciences ; Knowledge Innovation Program
Language英语
Funding ProjectNatural Science Foundation of the Zhejiang Province of China[Y17D030003] ; Natural Science Foundation of China[21377116] ; Hadal-trench Research Program of the Chinese Academy of Sciences[XDB06060100] ; Knowledge Innovation Program[SIDSSE-201302]
WOS KeywordCARBON-DIOXIDE ; HIGH-PRESSURE ; AQUEOUS-SOLUTIONS ; FLUID INCLUSIONS ; IMPROVED MODEL ; DIFFERENT TEMPERATURES ; VOLUME EXPANSION ; RED GYPSUM ; DEGREES-C ; 573.15 K
WOS Research AreaThermodynamics ; Chemistry ; Engineering
WOS SubjectThermodynamics ; Chemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000471832700028
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/6869
Collection深海科学研究部_深海极端环境模拟研究实验室
Corresponding AuthorPan, Zhiyan
Affiliation1.Zhejiang Univ Technol, Coll Environm, Hangzhou 310032, Zhejiang, Peoples R China
2.Wenzhou Univ, Coll Life & Environm Sci, Wenzhou 325035, Peoples R China
3.China Petr & Chem Co Ltd, Huadong Branch Co, Petr Explorat & Dev Res Inst, Nanjing 210011, Jiangsu, Peoples R China
4.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China
Recommended Citation
GB/T 7714
Wang, Junliang,He, Benben,Xie, Lifeng,et al. Determination of CO2 Solubility in Water and NaCl Solutions under Geological Sequestration Conditions Using a Fused Silica Capillary Cell with in Situ Raman Spectroscopy[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2019,64(6):2484-2496.
APA Wang, Junliang.,He, Benben.,Xie, Lifeng.,Bei, Ke.,Li, Guixuan.,...&Pan, Zhiyan.(2019).Determination of CO2 Solubility in Water and NaCl Solutions under Geological Sequestration Conditions Using a Fused Silica Capillary Cell with in Situ Raman Spectroscopy.JOURNAL OF CHEMICAL AND ENGINEERING DATA,64(6),2484-2496.
MLA Wang, Junliang,et al."Determination of CO2 Solubility in Water and NaCl Solutions under Geological Sequestration Conditions Using a Fused Silica Capillary Cell with in Situ Raman Spectroscopy".JOURNAL OF CHEMICAL AND ENGINEERING DATA 64.6(2019):2484-2496.
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