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Determination of CO2 Solubility in Water and NaCl Solutions under Geological Sequestration Conditions Using a Fused Silica Capillary Cell with in Situ Raman Spectroscopy

文献类型：期刊论文

作者Pan, Zhiyan4; Lin, Chunmian4; Chou, I-Ming1; Chen, Zuhua2; Li, Guixuan4; Bei, Ke3,4; Xie, Lifeng4; He, Benben4; Wang, Junliang4
刊名JOURNAL OF CHEMICAL AND ENGINEERING DATA
出版日期2019-06-01
卷号64期号:6页码:2484-2496
ISSN号0021-9568
DOI10.1021/acs.jced.9b00013
英文摘要To 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.
WOS关键词CARBON-DIOXIDE ; HIGH-PRESSURE ; AQUEOUS-SOLUTIONS ; FLUID INCLUSIONS ; IMPROVED MODEL ; DIFFERENT TEMPERATURES ; VOLUME EXPANSION ; RED GYPSUM ; DEGREES-C ; 573.15 K
资助项目Natural 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研究方向Thermodynamics ; Chemistry ; Engineering
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000471832700028
资助机构Natural 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
源URL[http://ir.idsse.ac.cn/handle/183446/6868]  
专题深海科学研究部_深海极端环境模拟研究实验室
通讯作者Pan, Zhiyan
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China
2.China Petr & Chem Co Ltd, Huadong Branch Co, Petr Explorat & Dev Res Inst, Nanjing 210011, Jiangsu, Peoples R China
3.Wenzhou Univ, Coll Life & Environm Sci, Wenzhou 325035, Peoples R China
4.Zhejiang Univ Technol, Coll Environm, Hangzhou 310032, Zhejiang, Peoples R China
推荐引用方式
GB/T 7714		 Pan, Zhiyan,Lin, Chunmian,Chou, I-Ming,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 Pan, Zhiyan.,Lin, Chunmian.,Chou, I-Ming.,Chen, Zuhua.,Li, Guixuan.,...&Wang, Junliang.(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 Pan, Zhiyan,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.

入库方式： OAI收割

来源：深海科学与工程研究所

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