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Influence of temperature on CO2 desorption using MIL-101(Cr)

https://doi.org/10.1038/srep02916

“The results of the regeneration experiment are shown in Figure 5. For both TSA-N2-stripping and VTSA regeneration methods, desorption efficiency increases with the increasing temperature. Desorption attains 100% efficiency when temperature reaches 328 K for TSA-N2-stripping and 348 K at 20 KPa for VTSA. Full regeneration temperatures of different MOFs are presented in Table 3. The milder desorption temperature, corresponding to the low enthalpy of CO2 adsorption of MIL-101(Cr)16, suggests that the regenerative heat can come from the waste heat of the power plant, thus enhance the economic feasibility of the process.”

“Table 3 The Full Regeneration Temperature of Purge Flow with Different MOFs”

Material Full regeneration temperature of purge flow (K) Ref
Mg-MOF-74 353 35
Amino-MIL-53 432 36
Co-MOF-74 373 37
mmen-2 393 38
Mg-MOF-74(S) 323 39
MIL-101(Cr) 328 This work

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“Figure 5 Results of the regeneration experiment.(a) TSA-N2-stripping regeneration, a nitrogen flow of 50 cm3/min for 10 min. (b) VTSA regeneration, a pressure of 20 KPa for 10 min. “

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