A copper-based metal-organic framework for upgrading natural gas through the recovery of C2H6 and C3H8
A copper-based metal-organic framework for upgrading natural gas through the recovery of C2H6 and C3H8
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通过回收 C2H6 和 C3H8 来升级天然气的铜基金属有机骨架
DOI：
10.1016/j.gce.2022.04.006
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发表时间：
2022-05
影响因子：
--
通讯作者：
Qing‐Yuan Yang
中科院分区：
文献类型：
--
作者：
Shao-Min Wang;Qing‐Yuan Yang
Natural gas processing involves the separation of higher hydrocarbons (C2–C3) from methane, which is an important and energy-intensive operation. In this paper, we present a comprehensive study of an innovative copper-based MOF (Cu-MOF) for the separation of propane and ethane from methane. The material exhibits a high adsorption capacity and selectivity for C2–C3 hydrocarbons over methane, which is primarily due to its preferential C2–C3 hydrocarbon adsorption. The adsorption isotherms at ambient conditions showed a remarkable uptake of C 3 H 8 of 134.0 cm 3 /g, as well as excellent selectivity of 204 and 9 for C 3 H 8 /CH 4 and C 2 H 6 /CH 4 . According to the theoretical calculations, differences in van der Waals interactions and polarizability of the guest molecules were responsible for influencing separation performance. In addition, we conducted adsorption kinetic experiments, dynamic breakthrough, and cycling experiments to further examine the separation performance. Overall, this research establishes an energy-efficient adsorbent for upgrading natural gas. • An innovative copper-based MOF (Cu-MOF) has been successfully synthesized. • Cu-MOF had an extremely high C 3 H 8 adsorption capacity of 134 cm 3 /g. • Cu-MOF exhibits the second highest selectivity (204) for C 3 H 8 /CH 4 as a result of its microporous nature. • Cu-MOF could be recused for upgrading natural gas without affecting separation performance. • The separation performance was confirmed by adsorption kinetic experiments.
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