Adsorption of Carbon Dioxide by MIL-101(Cr): Regeneration Conditions and Influence of Flue Gas Contaminants

作者：Liu, Qing; Ning, Liqi; Zheng, Shudong; Tao, Mengna; Shi, Yao; He, Yi^*

来源：Scientific Reports, 2013, 3(1): 2916.

DOI：10.1038/srep02916

• METAL-ORGANIC FRAMEWORKS
• CHROMIUM TEREPHTHALATE MIL-101
• CO2 ADSORPTION
• CAPTURE
• SEPARATION
• SORPTION
• SITES
• FUNCTIONALIZATION
• NANOTUBES
• NITROGEN

MIL-101(Cr) has drawn much attention due to its high stability compared with other metal-organic frameworks. In this study, three trace flue gas contaminants (H2O, NO, SO2) were each added to a 10 vol% CO2/N-2 feed flow and found to have a minimal impact on the adsorption capacity of CO2. In dynamic CO2 regeneration experiments, complete regeneration occurred in 10 min at 328 K for temperature swing adsorption-N-2-stripping under a 50 cm(3)/min N-2 flow and at 348 K for vacuum-temperature swing adsorption at 20 KPa. Almost 99% of the pre-regeneration adsorption capacity was preserved after 5 cycles of adsorption/desorption under a gas flow of 10 vol% CO2, 100 ppm SO2, 100 ppm NO, and 10% RH, respectively. Strong resistance to flue gas contaminants, mild recovery conditions, and excellent recycling efficiency make MIL-101(Cr) an attractive adsorbent support for CO2 capture.

• 出版日期2013-10-10
• 单位浙江大学