Isothermal PρT measurements on Qatar’s North Field type synthetic natural gas mixtures using a vibrating-tube densimeter |
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| Institution: | 1. College of Environmental and Chemical Engineering, Xi''an Polytechnic University, Xi''an 710048, China;2. School of Chemical Engineering, Xi''an University, Xi''an 710065, China;3. Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China |
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| Abstract: | Pressure–density–temperature (PρT) measurements of five natural gas mixtures that represent Qatar’s North Field natural gas reservoirs were carried out at temperatures from (250 to 450) K and at pressures up to 65 MPa by using a Anton Paar® (Graz, Austria) vibrating tube densimeter DMA 512P high-pressure cell. Total 20 isotherms from 250 K by 10 K intervals up to 450 K were measured. Experimental density data were compared with two main industry standard equations of state (EOS) namely AGA8-DC92 EOS and GERG2008 EOS. Comparisons of the experimental data with respect to AGA8-DC92 EOS and GERG2008 EOS resulted in prediction deviation ranges of (0.05 to −0.5)% and (0.25 to −0.5)% respectively. |
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