An accurate empirical correlation for predicting natural gas compressibility factors |
| |
Authors: | Ehsan Sanjari Ebrahim Nemati Lay |
| |
Institution: | Department of Chemical Engineering, Faculty of Engineering, University of Kashan, Ravand Street, Kashan, P. O. Box 87317-51167, Iran |
| |
Abstract: | The compressibility factor of natural gas is an important parameter in many gas and petroleum engineering calculations. This study presents a new empirical model for quick calculation of natural gas compressibility factors. The model was derived from 5844 experimental data of compressibility factors for a range of pseudo reduced pressures from 0.01 to 15 and pseudo reduced temperatures from 1 to 3. The accuracy of the new empirical correlation has been compared with commonly used existing methods. The comparison indicates the superiority of the new empirical model over the other methods used to calculate compressibility factor of natural gas with average absolute relative deviation percent (AARD%) of 0.6535. |
| |
Keywords: | natural gas compressibility factor correlation empirical model equation of state |
本文献已被 CNKI ScienceDirect 等数据库收录! |