(278e) Experimental Measurements and Modeling of Viscosity for Liquid Hydrocarbons At Pressures Up to 243 Mpa and Temperatures Up to 534 K | AIChE

(278e) Experimental Measurements and Modeling of Viscosity for Liquid Hydrocarbons At Pressures Up to 243 Mpa and Temperatures Up to 534 K

Authors 

Baled, H. - Presenter, National Energy Technology Laboratory (NETL), Office of Research and Development, Department of Energy
Xing, D., University of Pittsburgh
Enick, R. M., University of Pittsburgh
Gamwo, I., National Energy Technology Laboratory (NETL), Research & Innovation Center
Tapriyal, D., National Energy Technology Laboratory (NETL), Office of Research and Development, Department of Energy
Bamgbade, B., National Energy Technology Laboratory (NETL), Office of Research and Development, Department of Energy
Wu, Y., Virginia Commonwealth University
McHugh, M., Virginia Commonwealth University



Viscosity data are reported for n-octane, isooctane, cyclooctane, n-hexadecane, n-octadecane, and n-eicosane at pressures up to ~243 MPa and temperatures up to ~534 K. These extreme conditions are representative of those encountered in ultra-deep petroleum formations beneath the deepwaters of the Gulf of Mexico. The measurements are taken with a novel windowed rolling ball viscometer designed by our team. The reported viscosity values are in good agreement with the available literature data that cover limited pressure and temperature ranges; but our results extend the database of viscosity to the high temperature-high pressure region where most gaps occur in the literature data. The viscosity results are modeled with the free volume theory model in conjunction with the Tait, Peng-Robinson, and PC-SAFT equations of state. The mean absolute percent deviation (MAPD) values obtained with this model range from 2.0 to 3.5%. The data are also correlated by a nonlinear surface fit as a simultaneous function of temperature and pressure that yields MAPD values less than 0.5% for all hydrocarbons considered in this study.

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