Effect of Different Kinds of Hydrate Promoters on the Kinetics of Methane Hydrate Formation in Methane-Water-Oil System

Document Type : Research Article

Authors

1 SINOPEC Research Institute of Safety Engineering, Qingdao, P.R. CHINA

2 State Key Laboratory of Safety and Control for Chemicals, Qingdao 266071, P.R. CHINA

Abstract

In this work, the effect of hydrate promoters on methane hydrate formation in a methane-water-oil system with different initial water cuts from 20 vol% to 100 vol% were studied. For comparison, four promoters based on different promotion mechanisms, sodium dodecyl sulfate (SDS), L-leucine (L-l), tetrabutylammonium bromide (TBAB), and polysorbate 80 (Tween 80) were used. The experimental results show that four hydrate promoters did inhibit the nucleation of methane hydrate in 100 vol% water cut system, but the growth kinetic of methane hydrate was effectively improved compared with the system without a hydrate promoter. The induction time decreased with the increase of initial water cut under the same concentration of hydrate promoter for the methane-water-oil system, and the total methane consumption used for hydrate formation gradually increased with increasing initial water cut (except Tween80). But the current results also show significant improvement in normalized gas consumption per unit of water content with the increase of oil phase volume fraction that upon addition of oil phase the methane dissolution and mass transfer rate in the methane-water-oil system improve further, meaning that the formation rate of methane hydrate is enhanced. Because of the emulsifying property of Tween 80, the emulsion structure of the systems within Tween 80 hindered the hydrate growth process to some extent. Out of the four hydrate promoters used in this study, SDS was found to be most effective in enhancing the formation kinetic of methane hydrate as well as reducing the induction time in the methane-water-oil system under similar conditions.

Keywords

Main Subjects

References

[1] Koh C. A., Towards a Fundamental Understanding of Natural Gas Hydrates, Chem. Soc. Rev., 31: 157-167 (2002).
[2] Sloan E. D., Fundamental Principles and Applications of Natural Gas Hydrates, Nature, 426: 353 – 363 (2003).
[3] Razizadeh R., Mohebbi V., Aghajani M. Experimental Measurement of Methane and Ethane Mole Fractions During Gas Hydrate Formation, Iran. J. Chem. Chem. Eng. (IJCCE), 36(4): 145-153 (2017).
[4] Jamaluddin A. K. M., Kalogerakis N., Bishnoi P. R., Hydrate Plugging Problems in Undersea Natural Gas Pipelines under Shutdown Conditions, J. Petrol. Sci. Eng., 5: 323-335 (1991).
[5] Makogon Y. F., Holditch S. A., T. Y. Makogon, T. Y. Makogon, Natural Gas-Hydrates-A Potential Energy Source for the 21st Century, J. Petrol. Sci. Eng., 56: 14-31 (2007).
[6] Veluswamy H. P., Kumar A., Seo Y., Lee J. D., Linga P., A Review of Solidified Natural Gas (SNG) Technology for Gas Storage via Clathrate Hydrates, Appl. Energy, 216: 262-285 (2018).
[7] Melnikov V. P., Kutergin O. B., Nikov V. P., Nesterov A. N., Surfactant Effect on the Mechanism and Kinetics of Gas Hydrate Formation, Doklady Akademii Nauk, 323(3): 549-553 (1992).
[8] Kalogerakis N., Jamaluddin A. K. M., Dholabhai P. D., Bishnoi P. R., “Effect of Surfactants on Hydrate Formation Kinetics”, SPE International Symposium on Oilfield Chemistry, New Orleans, LA, U. S. A., March 3-5, 375-383 (1993).
[9] Zhong Y., Rogers R. E., Surfactant Effects on Gas Hydrate Formation, Chem. Eng. Sci., 55: 4175–4187 (2000).
[10] Lin W., Chen G. J., Sun C. Y., Guo X. Q., Wu Z. K., Liang M. Y., Chen L. T., Yang L. Y., Effect of Surfactant on the Formation and Dissociation Kinetic Behavior of Methane Hydrate, Chem. Eng. Sci., 59: 4449–4455 (2004).
[11] Du J. W., Li H. J., Wang L. G., Effects of Ionic Surfactants on Methane Hydrate Formation Kinetics in a Static System, Adv Powder Technol, 25: 1227–1233 (2014)
[12] Wang F., Jia Z. Z., Luo S. J., Fu S. F., Wang L., Shi X. S., Wang C. S., Guo R. B., Effect of Different Anionic Surfactant on Methane Hydrate Formation, Chem. Eng. Sci., 137: 896-903 (2015).
[13] Moraveji M. K., Ghaffarkhah A., Sadeghi A., Effect of Three Representative Surfactants on Methane Hydrate Formation Rate and Induction Time, Egypt. J. Pet., 26: 331–339 (2017).
[14] Veluswamy H. P, Hong Q. W, Linga P., Morphology Study of Methane Hydrate Formation and Dissociation in the Presence of Amino Acid, Cryst. Growth Des., 16: 5932–5945 (2016).
[15] Liu Y., Chen B.Y., Chen Y.L., Zhang S.H., Guo W.Q., Cai Y. H., Tan B. E., Wang W. X., Methane Storage in a Hydrated Form as Promoted by Leucines for Possible Application to Natural Gas Transportation and Storage, Energy Technol., 3: 815-819 (2015).
[16] Chen Y. L., Cai Y. H., Cai S. B., Wang W. X., Mechanism of L-leucine in Promoting Methane Hydrate Formation by Molecular Dynamic Simulation, Mater. Eng. Environ. Sci., 1: 173-181(2016).
[17] Liu, H., Mu, L., Liu, B., Zhang, X. X., Wang, J., Wang, B., Sun, C. Y., Yang, L. Y., Wang, H., Xiao, P., Chen, G. J., Experimental Studies of the Separation of C2 Compounds from CH4 + C2H4 + C2H6 + N2 Gas Mixtures by an Absorption−Hydration Hybrid Method, Ind. Eng. Chem. Res., 52(7): 2707−2713 (2013).
[18] Nguyen N. N., Nguyen A. V., Dang L. X., The Inhibition of Methane Hydrate Formation by Water Alignment underneath Surface Adsorption of Surfactants, Fuel, 197: 488–496 (2017).
[19] Sowa B., Maeda N., Probability Distributions of Natural Gas Hydrate Formation in Sodium Dodecyl Sulfate Aqueous Solutions, Energy Fuel, 29(9): 5692–5700 (2015).
[20] Molokitina N. S., Nesterov A. N., Podenko L. S., Reshetnikov A. M., Carbon Dioxide Hydrate Formation with SDS: Further Insights into Mechanism of Gas Hydrate Growth in the Presence of Surfactant, Fuel, 235: 1400–1411 (2019).
[21]Adamova T. P., Stoporev A. S., Semenov A. P., Kidyarov B. I., Manakov A. Y., Methane Hydrate Nucleation on Water–Methane and Water–Decane Boundaries. Thermochimica Acta, 668: 178–184 (2018).
[22] Chen J., Sun C. Y., Liu B., Peng B. Z., Wang X. L., Chen G. J., Metastable Boundary Conditions of Water-in-Oil Emulsions in the Hydrate Formation Region, AIChE J., 58(7): 2216-2225 (2012).
[23] Ma Q.L., Huang Q., Chen, G.J., Wang, X.L., Sun C.Y., Yang, L. Y., Kinetic and Phase Behaviors of Catalytic Cracking Dry Gas Hydrate in Water-in-Oil Emulsion, Chinese J. Chem. Eng., 21(3): 295−300 (2013).
[24] Li X. G., Chen C., Chen Y. N., Li Y. H., Li H., Kinetics of Methane Clathrate Hydrate Formation in Water-in-Oil Emulsion, Energy Fuel, 29(4): 2277–2288 (2015).
[25] Chen J., Chen G. J., Yuan Q., Deng B., Tao L. M., Li C. H., Xiao S. X., Jiang J. H., Li X., Li J. Y., Insights into Induction Time and Agglomeration of Methane Hydrate Formation in Diesel Oil Dominated Dispersed Systems, Energy, 170: 604-610 (2019).
[26] Wang L. K., Chen G. J., Han G. H., Guo X. Q., Guo T. M., Experimental Study on the Solubility of Natural Gas Components in Water with or without Hydrate Inhibitor, Fluid Phase Equilibria, 207: 143-154 (2003).
[27] Patel N. C., Teja A. S., A New Cubic Equation of State for Fluids and Fluid Mixtures, Chem. Eng. Sci., 37: 463-473 (1982).
[28] Peng D.Y., Robinson D. B., A New Two-Constant Equation of State, Ind. Eng. Chem. Res., 15: 59-64 (1976).
[29] Qin H.B., Sun Z.F., Wang X.Q., Yang J.L., Sun C.Y., Liu B., Yang L.Y., Chen G.J., Synthesis and Evaluation of Two New Kinetic Hydrate Inhibitors, Energy Fuel, 29: 7135-7141 (2015).
[30] He Y., Sun M.T., Chen C., Zhang G.D., Chao K., Lin Y., Wang F., Surfactant-Based Promotion to Gas Hydrate Formation for Energy Storage, J. Mater. Chem. A, 7: 21634-21661 (2019).
[31] Mu L., Li S., Ma Q.L., Zhang K., Sun C.Y., Chen G.J., Liu B., Yang L.Y., Experimental and Modeling Investigation of Kinetics of Methane Gas Hydrate Formation in Water-in-oil Emulsion, Fluid Phase Equilibria, 362: 28-34 (2014).
Iranian Journal of Chemistry and Chemical Engineering
Volume 41, Issue 1 - Serial Number 111
January 2022
Pages 232-241

Files

Share

How to cite

Statistics