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The dependence of the diffusion coefficient on the filling factor was investigated for several gases (C[H.sub.4], [C.sub.2][H.sub.6], and C3H8) in silicalite-1 membrane at times t > 10s [57].
Gas Composition / Gas Chromatograph Methane C2H6,N2,CO2 C3H8 etc Other Concentration >80% 0.5%-5% 0.1%-0.5% <0.1% Uncertainty [+ or -] 0.2% [+ or -] 3% [+ or -] 10% [+ or -] 20% Heating Value On-line Spot GC Sample Autosapler Concentration Uncertainty [+ or -] 0.3% [+ or -] 0.3% [+ or -] 0.4% Heating Value Correlation Technique Modelling Concentration Uncertainty >[+ or -] 0.3% [+ or -] 0.35%- [+ or -] 1% Hydrocarbon Dewpoint Specific GC and Equation of Gravity state Chilled Mirror C6 + GC C9 + GC Uncertainty [+ or -] 0.3% [+ or -] 5 [+ or -] 2 [+ or -] 1.3 [degrees] C [degrees] C [degrees] C H2S Total S Moisture Embedded No Auto- GC Calibration Calibration Uncertainty [+ or -] 1 [+ or -] 2% [+ or -] 20% [+ or -] 2% lb/MMCF