Experimental and analytical techniques for multiple gas-adsorbent equilibrium

[摘要] C2 and H2 co-adsorption equilibria for polyethylenimine (PEI) coated on an acrylic ester substrate (designated HS-C) was determined. The adsorption of H2 is not dependent on C2 adsorption. The substrate is hydrophilic and accounts for a major fraction of the water adsorption. An analytical equation with temperature effects was developed which predicts the overall water equilibria on HS-C. The adsorption of C2 increases with increased water loading. An analytical equation which predicts C2 capacity as a function of temperature and H2 loading is presented. The adsorption capacity for C2 is considered to arise from the reaction with the hydrated tertiary amino nitrogen of the polymer. Test data at °C, 25°C, and 35°C are included. Ternary equilibrium at select points for the system C2/H2/Contaminant were determined. The contaminants tested were CO, CH4, C2Hg, NH5, Acetone, CHgOH, CgHgOH, isobutane, CCI4, and H2S. Results show that isobutane and CCI4 react irreversibly with the polymer and that CO, CH4, and C2H6 are not adsorbed.

[发布机构] Rice University