caa a22 4500 477139469 CHVBK 20180405111728.0 cr unu---uuuuu 170330e19970801xx s 000 0 eng 10.1007/BF02767783 doi (NATIONALLICENCE)springer-10.1007/BF02767783 Vapor-liquid equilibria for the nitrogen-isobutane system [Elektronische Daten] [Guangshun Chen, Helmut Knapp, Yujun Hou] Vapor-liquid equilibria have been investigated experimentally for the nitrogen-isobutane system at temperatures from 120 K to 220 K and at pressures up to 150 bar. Below 126.5 K, two liquid phases were observed as pressure was increased to near the vapor pressure of pure nitrogen. The equilibrium ratio of nitrogen in the binary system and the Henry's law constants for nitrogen in isobutane were determined from experimental data. The experimental phase equilibrium data were correlated by means of the Peng-Robinson equation of state. Plenum Publishing Corporation, 1997 Nitrogen nationallicence isobutane nationallicence vapor-liquid equilibria nationallicence Henry's law constants nationallicence a, b, m, α : Constants of the P-R equation of state nationallicence δ x 1 : x 1,cal -x 1,exp nationallicence δ y 1 : y 1,cal -y 1,exp nationallicence δ P/P % : 100(P exp -P cal)/P exp nationallicence h 12 : Henry's constant for component 1 nationallicence K i : Equilibrium ratio nationallicence distribution of component i between liquid and vapor phase nationallicence k 12 : Adjustable parameter nationallicence P c : Critical pressure nationallicence P s : Saturation vapor pressure nationallicence R : Gas constant nationallicence T : Kelvin temperature nationallicence T c : Critical temperature nationallicence T r : T/T c nationallicence V : Molar volume nationallicence V 1 oL : Solute partial molar volume at infinite dilution nationallicence x : Mole fraction in liquid phase nationallicence y : Mole fraction in vapor phase nationallicence Z : PV/RT nationallicence Ω : Acentric factor nationallicence Φ : Fugacity coefficient nationallicence ψ : The Poynting correction nationallicence Chen Guangshun Department of Chemical and Environmental Engineering, University of Arizona, 85721, Tucson, Arizona aut Knapp Helmut Institute for Thermodynamics and Reaction Engineering, Technical University of Berlin, Strasse des 17 Juni 135, 10617, Berlin, Germany aut Hou Yujun Department of Chemical Engineering, Zhejiang University, Hangzhou, China aut Journal of Solution Chemistry Springer US 26/8(1997-08-01), 779-790 0095-9782 26:8<779 1997 26 10953 https://doi.org/10.1007/BF02767783 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02767783 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Guangshun Department of Chemical and Environmental Engineering, University of Arizona, 85721, Tucson, Arizona aut NATIONALLICENCE 700 1- Knapp Helmut Institute for Thermodynamics and Reaction Engineering, Technical University of Berlin, Strasse des 17 Juni 135, 10617, Berlin, Germany aut NATIONALLICENCE 700 1- Hou Yujun Department of Chemical Engineering, Zhejiang University, Hangzhou, China aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US 26/8(1997-08-01), 779-790 0095-9782 26:8<779 1997 26 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer