摘要
Carbon monoxide(CO)/N2 separation is of importance for current chemical industry.However, CO/N2 separation remains a challenge due to the similar molecular size and the small variance of volatility of CO and N2.In this work, molecular sieve SAPO-34 was loaded with CuCl by monolayer dispersion method for the preparation of Cu(I) containing adsorbents.The resulted adsorbents were characterized via nitrogen adsorption/desorption at 77 K, X-ray fluorescence(XRF) and X-ray diffraction(XRD).The results indicated that CuCl was successful loaded into the molecular sieve and well-dispersed.CO and N2 single component adsorption isotherms were recorded under 298 K, 308 K and 318 K by using volumetric method.One of the CuCl-loaded SAPO-34 adsorbent exhibited a very high CO adsorption capacity of 1.84 mmol/g at 100 kPa,298 K and high CO/N2 selectivity.
Carbon monoxide（CO）/N2 separation is of importance for current chemical industry.However, CO/N2 separation remains a challenge due to the similar molecular size and the small variance of volatility of CO and N2.In this work, molecular sieve SAPO-34 was loaded with CuCl by monolayer dispersion method for the preparation of Cu（I） containing adsorbents.The resulted adsorbents were characterized via nitrogen adsorption/desorption at 77 K, X-ray fluorescence（XRF） and X-ray diffraction（XRD）.The results indicated that CuCl was successful loaded into the molecular sieve and well-dispersed.CO and N2 single component adsorption isotherms were recorded under 298 K, 308 K and 318 K by using volumetric method.One of the CuCl-loaded SAPO-34 adsorbent exhibited a very high CO adsorption capacity of 1.84 mmol/g at 100 kPa,298 K and high CO/N2 selectivity.
基金
supported by the National Natural Science Foundation of China(No.21802136)
