JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Evaluation of Hydrate Inhibition Performance of Water-soluble Polymers using Torque Measurement and Differential Scanning Calorimeter
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
  • Journal title : Korean Chemical Engineering Research
  • Volume 52, Issue 6,  2014, pp.814-820
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2014.52.6.814
 Title & Authors
Evaluation of Hydrate Inhibition Performance of Water-soluble Polymers using Torque Measurement and Differential Scanning Calorimeter
Shin, Kyuchul; Park, Juwoon; Kim, Jakyung; Kim, Hyunho; Lee, Yohan; Seo, Yongwon; Seo, Yutaek;
  PDF(new window)
 Abstract
In this work, hydrate inhibition performance of water-soluble polymers including pyrrolidone, caprolactam, acrylamide types were evaluated using torque measurement and high pressure differential scanning calorimeter (HP -DSC). The obtained experimental results suggest that the studied polymers represent the kinetic hydrate inhibition (KHI) performance. 0.5 wt% polyvinylcaprolactam (PVCap) solution shows the hydrate onset time of 34.4 min and subcooling temperature of 15.9 K, which is better KHI performance than that of pure water - hydrate onset time of 12.3 min and subcooling temperature of 6.0 K. 0.5 wt% polyvinylpyrrolidone (PVP) solution shows the hydrate onset time of 27.6 min and the subcooling temperature of 13.2 K while polyacrylamide-co-acrylic acid partial sodium salt (PAM-co-AA) solution shows less KHI performance than PVP solution at both 0.5 and 5.0 wt%. However, PAM-co-AA solution shows slow growth rate and low hydrate amount than PVCap. In addition to hydrate onset and growth condition, torque change with time was investigated as one of KHI evaluation methods. 0.5 wt% PVCap solution shows the lowest average torque of 6.4 N cm and 0.5 wt% PAM-co-AA solution shows the average torque of 7.2 N cm. For 0.5 wt% PVP solution, it increases 11.5 N cm and 5.0 wt% PAM-co-AA solution shows the maximum average torque of 13.4 N cm, which is similar to the average torque of pure water, 15.2 N cm. Judging from the experimental results obtained by both an autoclave and a HP -DSC, the PVCap solution shows the best performance among the KHIs in terms of delaying hydrate nucleation. From these results, it can be concluded that the torque change with time is useful to identify the flow ability of tested solution, and the further research on the inhibition of hydrate formation can be approached in various aspects using a HP -DSC.
 Keywords
Gas Hydrates;Kinetic Hydrate Inhibitor;Offshore Flowlines;Flow Assurance;DSC;
 Language
Korean
 Cited by
 References
1.
Sloan, E. D. and Koh, C. A. Clathrate Hydrates of Natural Gases. 3rd ed.; CRC Press, Taylor & Francis Group: Boca Raton, FL(2008).

2.
Seo, Y. T. and Lee, H., "C-13 NMR Analysis and Gas Uptake Measurements of Pure and Mixed Gas Hydrates: Development of Natural Gas Transport and Storage Method Using Gas Hydrate," Korean J. Chem. Eng., 20, 1085-1091 (2003). crossref(new window)

3.
Lee, H., Seo, Y., Seo, Y. T., Moudrakovski, I. L., and Ripmeester, J. A., "Recovering Methane from Solid Methane Hydrate with Carbon Dioxide," Angew. Chem. Int. Ed., 42, 5048-5051(2003). crossref(new window)

4.
Sloan, E. D., Koh, C. A., and Sum, A. K., Natural Gas Hydrates in Flow Assurance, Elsevier, Amsterdam(2010).

5.
Brustad, S., Loken, K. P. and Waalmann, J. G., "Hydrate Prevention using MEG Instead of MeOH: Impact of Experience from Major Norwegian Developments on Technology Selection for Injection and Recovery of MEG," In Offshore Technology Conference, Houston, Texas, USA, May 2-5(2005).

6.
Cha, M., Shin, K., Kim, J., Chang, D., Seo, Y., Lee, H. and Kang, S. P., "Thermodynamic and Kinetic Hydrate Inhibition Performance of Aqueous Ethylene Glycol Solutions for Natural Gas," Chem. Eng. Sci., 99, 184-190(2013). crossref(new window)

7.
Joshi, S. V., Grasso, G. A., Lafond, P. G., Rao, I., Webb, E., Zerpa, L. E.,Sloan, E. D., Koh, C. A. and Sum, A. K., "Experimental Flowloop Investigations of Gas Hydrate Formation in High Water Cut Systems," Chem. Eng. Sci., 97, 198-209(2013). crossref(new window)

8.
Kelland, M. A., "History of the Development of Low Dosage Hydrate Inhibitors," Energy Fuels, 20, 825-847(2006). crossref(new window)

9.
Townson, I., Walker, V. K., Ripmeester, J. A. and Englezos, P., "Bacterial Inhibition of Methane Clathrate Hydrates Formed in a Stirred Autoclave," Energy Fuels, 26, 7170-7175(2012). crossref(new window)

10.
Kelland, M. A., Del Villano, L. and Kommedal, R., "Class of Kinetic Hydrate Inhibitors with Good Biodegradability," Energy Fuels, 22, 3143-3149(2008). crossref(new window)

11.
Kvamme, B., Kuznetsova, T. and Aasoldsen, K., "Molecular Dynamics Simulations for Selection of Kinetic Hydrate Inhibitors," J. Mol. Graph. Model, 23, 524-536(2005). crossref(new window)

12.
Anderson, B. J., Tester, J. W., Borshi, G. P. and Trout, B. L., "Properties of Inhibitors of Methane Hydrate Formation via Molecular Dynamics Simulations," J. Am. Chem. Soc., 127, 17852-17862(2005). crossref(new window)

13.
Moore, J. A., "Understanding Kinetic Hydrate Inhibitor and Corrosion Inhibitor Interactions," In Proceeding of the Offshore Technology Conference. Houston, TX, USA, May 4-7(2009).

14.
Daraboina, N. and Linga, P., "Experimental Investigation of the Effect of poly-N-vinyl Pyrrolidone (PV) on Methane/propane Clathrates Using a New Contact Mode," Chem. Eng. Sci., 93, 387-394(2013). crossref(new window)

15.
Yang, J. and Tohidi, B., "Characterization of Inhibition Mechanisms of Kinetic Hydrate Inhibitors using Ultrasonic Test Technique," Chem. Eng. Sci., 66, 278-283(2011). crossref(new window)

16.
Anderson, R., Mozaffar, H. and Tohidi, B., "Development of a Crystal Growth Inhibition Based Method for the Evaluation of Kinetic Hydrate Inhibitors," In Proceedings of the 7th International Conference on Gas Hydrates, Edinburgh,Scotland, U.K., July 17-21(2011).

17.
Lee, S., Park, S., Lee, Y., Kim, Y., Lee, JD., Lee, J. and Seo, Y., "Measurements of Dissociation Enthalpy for Simple Gas Hydrates Using High Pressure Differential Scanning Calorimetry," Korean Chem. Eng. Res., 50(4), 666-671(2012). crossref(new window)

18.
Lee, S., Lee, Y., Lee, J., Lee, H. and Seo, Y., "Experimental Verification of Methane-Carbon Dioxide Replacement in Natural Gas Hydrates Using a Differential Scanning Calorimeter," Environ. Sci. Technol., 47(22), 13184-13190(2013). crossref(new window)

19.
Lee, Y., Lee, S., Lee, J. and Seo, Y., "Structure Identification and Dissociation Enthalpymeasurements of the $CO_2+N_2$ Hydrates for Their Application to $CO_2$ Capture and Storage," Chem. Eng. J., 246, 20-26(2014). crossref(new window)

20.
Daraboina, N., Linga, P., Ripmeester, J. A., Walker, V. K. and Englezos, P., "Natural Gas Hydrate Formation and Decomposition in the Presence of Kinetic Inhibitors. 2. Stirred Reactor Experiments," Energy Fuels, 25, 4384-4391(2011). crossref(new window)

21.
Ke, W., Svartaas, T. M. and Abay, H. K., "An Experimental Study on sI Hydrate Formation in Presence of Methanol, PVP and PVCap in An Isochoric Cell," In Proceedings of the 7th International Conference on Gas Hydrates, Edinburgh, Scotland, U.K., July 17-21(2011).

22.
Cha, M., Shin, K., Seo, Y., Shin, J. Y. and Kang, S. P., "Catastrophic Growth of Gas Hydrates in the Presence of Kinetic Hydrate Inhibitors," J. Phys. Chem. A., 117, 13988-13995(2013). crossref(new window)