Separation of CO2 from light gas mixtures using nanoporous silicoaluminophosphate sorbents: Effect of multiple-step ion exchange and adsorption mechanism via computational studies.

DOI: 10.1016/j.micromeso.2009.10.025

Jan. 1, 2010

Adsorbents

Data points

# Adsorbent Gas q / mol kg⁻¹ S / mol mol⁻¹ -ΔH / kJ mol⁻¹
2057 Sr2+-SAPO-34 Stage 1 Carbon dioxide/Methane 3.55 5.92 52.3
2058 Sr2+-SAPO-34 Stage 2 Carbon dioxide/Methane 2.9 2.52 52.3
2059 Sr2+-SAPO-34 Stage 3 Carbon dioxide/Methane 2.8 3.11 52.3
2060 Ba2+-SAPO-34 Stage 1 Carbon dioxide/Methane 2.95 2.95 44.56
2061 Ba2+-SAPO-34 Stage 2 Carbon dioxide/Methane 3.1 2.58 44.56
2062 Ba2+-SAPO-34 Stage 3 Carbon dioxide/Methane 3.1 2.82 44.56
3787 Sr2+-SAPO-34 Stage 1 Carbon dioxide/Nitrogen 3.55 8.87 52.3
3788 Sr2+-SAPO-34 Stage 2 Carbon dioxide/Nitrogen 2.9 5.8 52.3
3789 Sr2+-SAPO-34 Stage 3 Carbon dioxide/Nitrogen 2.8 4.67 52.3
3790 Ba2+-SAPO-34 Stage 1 Carbon dioxide/Nitrogen 2.95 4.54 44.56
3791 Ba2+-SAPO-34 Stage 2 Carbon dioxide/Nitrogen 3.1 3.88 44.56
3792 Ba2+-SAPO-34 Stage 3 Carbon dioxide/Nitrogen 3.1 4.77 44.56
4150 Sr2+-SAPO-34 Stage 1 Nitrogen/Oxygen 0.4 1.6 None
4151 Sr2+-SAPO-34 Stage 2 Nitrogen/Oxygen 0.75 1.5 None
4152 Sr2+-SAPO-34 Stage 3 Nitrogen/Oxygen 0.6 2.0 None
4153 Ba2+-SAPO-34 Stage 1 Nitrogen/Oxygen 0.65 2.17 None
4154 Ba2+-SAPO-34 Stage 2 Nitrogen/Oxygen 0.8 2.29 None
4155 Ba2+-SAPO-34 Stage 3 Nitrogen/Oxygen 0.65 1.86 None
5091 Sr-SAPO-34 Stage 1 Methane/Nitrogen 0.6 1.5 None
5092 Ba-SAPO-34 Stage 1 Methane/Nitrogen 1.0 1.67 None
5093 Sr-SAPO-34 Stage 2 Methane/Nitrogen 1.2 1.5 None
5094 Ba-SAPO-34 Stage 2 Methane/Nitrogen 1.2 1.5 None
5095 Sr-SAPO-34 Stage 3 Methane/Nitrogen 0.9 1.64 None
5096 Ba-SAPO-34 Stage 3 Methane/Nitrogen 1.15 1.77 None