Table 1

Permselectivity (F α) calculated from observed single-component permeances and selectivities (α) for 50/50 (V/V) gas mixtures for Si400 and Si600 at ΔP = 1 bar and a mean pressure of 1.5 bar.

MixtureSi400Si600
100°C200°C100°C200°C300°C
FααFααFαFαFα
H2/CO2 4.03.97.56.8367198
H2/N2 6164>80>135>170
H2/CH4 770533561321>2500>4000>5000
CO2/CH4 19411875>130>100>80
O2/N2 3.93.3>3>6>7