Gas hydrate formation from high concentration KCl brines at ultra-high pressures

Yue Hu; Kun-Hong Lee; Bo Ram Lee; Amadeu K. Sum

Journal of Industrial and Engineering Chemistry, Vol.50, 142-146, June, 2017

DOI10.1016/j.jiec.2017.02.007 Export Citation

Gas hydrate formation from high concentration KCl brines at ultra-high pressures

Yue Hu¹, Kun-Hong Lee², Bo Ram Lee^{1, 2, †}, and Amadeu K. Sum^{1, †}

¹Hydrates Energy Innovation Laboratory, Chemical & Biological Engineering Department, Colorado School of Mines, Golden, CO 80401, USA
²Department of Chemical Engineering, Pohang University of Science & Technology, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea

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The phase equilibria of methane hydrates were measured in high concentration KCl brines (up to saturation concentration) at ultra-high pressures (up to 200 MPa). The results show the hydrate equilibrium boundary moves to lower temperature and higher pressure as the KCl concentration increased up to the saturation limit and the hydrate equilibrium is unchanged from the saturation concentration for four-phase equilibrium. From the measurements at the saturation concentration, we also determine the pressure effect on the solubility of KCl. The kinetic studies reveal hydrates form even with salt precipitated and hydrates and salt are competing solid precipitation under saturated conditions.

Keywords:Gas hydrates;Phase equilibria;Potassium chloride;Pressure effect;Solubility;Ultra-high pressure

[References]

Sloan ED, Koh CA, Clathrate Hydrates of Natural Gases, 3rd Edn., CRC Press, Boca Raton, FL, 2008.
Makogon YF, Holditch SA, Makogon TY, J. Petrol. Sci. Eng., 56, 14 (2007)
Boswell R, Collett TS, Energy Environ. Sci., 4, 1206 (2011)
Koh CA, Sum AK, Sloan ED, J. Nat. Gas Sci. Eng., 8, 132 (2012)
Seol J, Lee H, Korean J. Chem. Eng., 30(4), 771 (2013)
Lee BR, Koh CA, Sum AK, Phys. Chem. Chem. Phys., 16, 14922 (2014)
Chong ZR, Yang SHB, Babu P, Linga P, Li XS, Appl. Energy, 162, 1633 (2016)
Sloan ED, Natural Gas Hydrates in Flow Assurance, Gulf Professional Pub./ Elsevier, Amsterdam, Boston, 2011.
Lee BR, Sum AK, Langmuir, 31(13), 3884 (2015)
Shaughnessy JM, Daugherty WT, Graff RL, Durkee T, More Ultra-Deepwater Drilling Problems Paper SPE 105792, Society of Petroleum Engineers, 2007.
Hu Y, Makogon TY, Karanjkar P, Lee BR, Sum AK, J. Phys. Chem. B (2016) (Submitted for Publication).
Lafond PG, Olcott KA, Sloan ED, Koh CA, Sum AK, J. Chem. Thermodyn., 48, 1 (2012)
Jager MD, Sloan ED, Fluid Phase Equilib., 185(1-2), 89 (2001)
Mohammadi AH, Afzal W, Richon D, J. Chem. Thermodyn., 40(12), 1693 (2008)
Cha MJ, Hu Y, Sum AK, Fluid Phase Equilib., 413, 2 (2016)
Maekawa T, Itoh S, Sakata S, Igari S, Imai N, Geochem. J., 29, 325 (1995)
Sawamura S, Rev. High Press Sci. Technol., 25, 239 (2015)
Sawamura S, Egoshi N, Setoguchi Y, Matsuo H, Fluid Phase Equilib., 254(1-2), 158 (2007)
Hu Y, Lee BR, Sum AK, Fluid Phase Equilib. (2016) (Submitted for Publication).
Lide DR, CRC Handbook of Chemistry and Physics, 86th Edn., CRC Press, Boca Raton (FL), 2005.
Najibi H, Chapoy A, Haghighi H, Tohidi B, Fluid Phase Equilib., 275(2), 127 (2009)
Ballard AL, Sloan ED, Fluid Phase Equilib., 218(1), 15 (2004)
Gibson RE, Am. J. Sci., 35, 49 (1938)

[Referenced By]

[1] Sloan ED, Koh CA, Clathrate Hydrates of Natural Gases, 3rd Edn., CRC Press, Boca Raton, FL, 2008.

[2] Makogon YF, Holditch SA, Makogon TY, J. Petrol. Sci. Eng., 56, 14 (2007)

[3] Boswell R, Collett TS, Energy Environ. Sci., 4, 1206 (2011)

[4] Koh CA, Sum AK, Sloan ED, J. Nat. Gas Sci. Eng., 8, 132 (2012)

[5] Seol J, Lee H, Korean J. Chem. Eng., 30(4), 771 (2013)

[6] Lee BR, Koh CA, Sum AK, Phys. Chem. Chem. Phys., 16, 14922 (2014)

[7] Chong ZR, Yang SHB, Babu P, Linga P, Li XS, Appl. Energy, 162, 1633 (2016)

[8] Sloan ED, Natural Gas Hydrates in Flow Assurance, Gulf Professional Pub./ Elsevier, Amsterdam, Boston, 2011.

[9] Lee BR, Sum AK, Langmuir, 31(13), 3884 (2015)

[10] Shaughnessy JM, Daugherty WT, Graff RL, Durkee T, More Ultra-Deepwater Drilling Problems Paper SPE 105792, Society of Petroleum Engineers, 2007.

[11] Hu Y, Makogon TY, Karanjkar P, Lee BR, Sum AK, J. Phys. Chem. B (2016) (Submitted for Publication).

[12] Lafond PG, Olcott KA, Sloan ED, Koh CA, Sum AK, J. Chem. Thermodyn., 48, 1 (2012)

[13] Jager MD, Sloan ED, Fluid Phase Equilib., 185(1-2), 89 (2001)

[14] Mohammadi AH, Afzal W, Richon D, J. Chem. Thermodyn., 40(12), 1693 (2008)

[15] Cha MJ, Hu Y, Sum AK, Fluid Phase Equilib., 413, 2 (2016)

[16] Maekawa T, Itoh S, Sakata S, Igari S, Imai N, Geochem. J., 29, 325 (1995)

[17] Sawamura S, Rev. High Press Sci. Technol., 25, 239 (2015)

[18] Sawamura S, Egoshi N, Setoguchi Y, Matsuo H, Fluid Phase Equilib., 254(1-2), 158 (2007)

[19] Hu Y, Lee BR, Sum AK, Fluid Phase Equilib. (2016) (Submitted for Publication).

[20] Lide DR, CRC Handbook of Chemistry and Physics, 86th Edn., CRC Press, Boca Raton (FL), 2005.

[21] Najibi H, Chapoy A, Haghighi H, Tohidi B, Fluid Phase Equilib., 275(2), 127 (2009)

[22] Ballard AL, Sloan ED, Fluid Phase Equilib., 218(1), 15 (2004)

[23] Gibson RE, Am. J. Sci., 35, 49 (1938)