Highly selective separation of propylene/propane mixture on cost-effectively four-carbon linkers based metal-organic frameworks

doi:10.1016/j.cjche.2021.12.024

Chinese Journal of Chemical Engineering ›› 2022, Vol. 51 ›› Issue (11): 126-134.DOI: 10.1016/j.cjche.2021.12.024

Highly selective separation of propylene/propane mixture on cost-effectively four-carbon linkers based metal-organic frameworks

Daofei Lv¹, Junhao Xu¹, Pingjun Zhou¹, Shi Tu², Feng Xu¹, Jian Yan¹, Hongxia Xi², Zewei Liu², Wenbing Yuan¹, Qiang Fu³, Xin Chen¹, Qibin Xia²

1. School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China;
2. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China;
3. Sichuan Jinyuansheng New Energy Technology Co., Ltd, Meishan 620010, China

Received:2021-10-09 Revised:2021-12-12 Online:2023-01-18 Published:2022-11-18
Contact: Zewei Liu,E-mail:liuzeweiscut@gmail.com;Xin Chen,E-mail:chenxin@fosu.edu.cn
Supported by:
We are grateful to the financial support from National Natural Science Foundation of China (22108034, 21878101), Guangdong Basic and Applied Basic Research Foundation (2020A1515110945, 2020A1515110234, 2021A1515011336 and 2020A1515110325), National Key Research and Development Program (2019YFC1805804), Guangdong Natural Science Foundation (2017A030313052), Key Program of Marine Economy Development (Six Marine Industries) Special Foundation of Department of Natural Resources of Guangdong Province (GDNRC [2020]036), Characteristic Innovation Research Project of University Teachers (2020XCC08) and Foshan Engineering and Technology Research Center for Novel Porous Materials.

Highly selective separation of propylene/propane mixture on cost-effectively four-carbon linkers based metal-organic frameworks

Daofei Lv¹, Junhao Xu¹, Pingjun Zhou¹, Shi Tu², Feng Xu¹, Jian Yan¹, Hongxia Xi², Zewei Liu², Wenbing Yuan¹, Qiang Fu³, Xin Chen¹, Qibin Xia²

1. School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China;
2. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China;
3. Sichuan Jinyuansheng New Energy Technology Co., Ltd, Meishan 620010, China

通讯作者: Zewei Liu,E-mail:liuzeweiscut@gmail.com;Xin Chen,E-mail:chenxin@fosu.edu.cn
基金资助:
We are grateful to the financial support from National Natural Science Foundation of China (22108034, 21878101), Guangdong Basic and Applied Basic Research Foundation (2020A1515110945, 2020A1515110234, 2021A1515011336 and 2020A1515110325), National Key Research and Development Program (2019YFC1805804), Guangdong Natural Science Foundation (2017A030313052), Key Program of Marine Economy Development (Six Marine Industries) Special Foundation of Department of Natural Resources of Guangdong Province (GDNRC [2020]036), Characteristic Innovation Research Project of University Teachers (2020XCC08) and Foshan Engineering and Technology Research Center for Novel Porous Materials.

Abstract

Abstract: The separation of propylene and propane is an important but challenging process, primarily achieved through energy-intensive distillation technology in the petrochemical industry. Here, we reported two natural C₄ linkers based metal–organic frameworks (MIP-202 and MIP-203) for C₃H₆/C₃H₈ separation. Adsorption isotherms and selectivity calculations were performed to study the adsorption performance for C₃H₆/C₃H₈ separation. Results show that C₃H₆/C₃H₈ uptake ratios (298 K, 100 kPa) for MIP-202 and MIP-203 are 2.34 and 7.4, respectively. C₃H₆/C₃H₈ uptake ratio (303 K, 100 kPa) for MIP-203 is up to 50.0. The mechanism for enhanced separation performance of C₃H₆/C₃H₈ on MIP-203 at higher temperature (303 K) was revealed by the in situ PXRD characterization. The adsorption selectivities of C₃H₆/C₃H₈ on MIP-202 and MIP-203 (298 K, 100 kPa) are 8.8 and 551.4, respectively. The mechanism for the preferential adsorption of C₃H₆ over C₃H₈ in MIP-202 and MIP-203 was revealed by the Monte Carlo simulation. The cost of organic ligands for MIP-202 and MIP-203 was lower than that of organic ligands for those top-performance MOFs. Our work sets a new benchmark for C₃H₆ sorbents with high adsorption selectivities.

Key words: Propylene, Propane, Separation, Gas, Adsorption, Metal-organic frameworks

摘要： The separation of propylene and propane is an important but challenging process, primarily achieved through energy-intensive distillation technology in the petrochemical industry. Here, we reported two natural C₄ linkers based metal–organic frameworks (MIP-202 and MIP-203) for C₃H₆/C₃H₈ separation. Adsorption isotherms and selectivity calculations were performed to study the adsorption performance for C₃H₆/C₃H₈ separation. Results show that C₃H₆/C₃H₈ uptake ratios (298 K, 100 kPa) for MIP-202 and MIP-203 are 2.34 and 7.4, respectively. C₃H₆/C₃H₈ uptake ratio (303 K, 100 kPa) for MIP-203 is up to 50.0. The mechanism for enhanced separation performance of C₃H₆/C₃H₈ on MIP-203 at higher temperature (303 K) was revealed by the in situ PXRD characterization. The adsorption selectivities of C₃H₆/C₃H₈ on MIP-202 and MIP-203 (298 K, 100 kPa) are 8.8 and 551.4, respectively. The mechanism for the preferential adsorption of C₃H₆ over C₃H₈ in MIP-202 and MIP-203 was revealed by the Monte Carlo simulation. The cost of organic ligands for MIP-202 and MIP-203 was lower than that of organic ligands for those top-performance MOFs. Our work sets a new benchmark for C₃H₆ sorbents with high adsorption selectivities.

关键词: Propylene, Propane, Separation, Gas, Adsorption, Metal-organic frameworks

Daofei Lv, Junhao Xu, Pingjun Zhou, Shi Tu, Feng Xu, Jian Yan, Hongxia Xi, Zewei Liu, Wenbing Yuan, Qiang Fu, Xin Chen, Qibin Xia. Highly selective separation of propylene/propane mixture on cost-effectively four-carbon linkers based metal-organic frameworks[J]. Chinese Journal of Chemical Engineering, 2022, 51(11): 126-134.

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Highly selective separation of propylene/propane mixture on cost-effectively four-carbon linkers based metal-organic frameworks

Highly selective separation of propylene/propane mixture on cost-effectively four-carbon linkers based metal-organic frameworks

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