Article
Chemistry, Inorganic & Nuclear
Jiazhen Chen, Yanchun Zheng, Xue Wang, Yuxuan Gao, Xiayang Gao, Yiming Zhang, Junkuo Gao, Xiaogang Yang
Summary: This work presents an amine-functionalized ultramicroporous metal-organic framework (MOF) Zn2(atz)2(ipa) with pH stability, which demonstrates a high adsorption capacity for C3H6 at low pressure. The suitable pore shape and strong bonding force with exposed -NH2 groups contribute to the high separation efficiency of C3H6/C3H8. This study provides a fresh solution for the production of polymer-grade C3H6 through physical adsorption by MOFs.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Engineering, Chemical
Jiaqi Liu, Wu Yang, Liang Yu, Hao Wang, Qibin Xia, Jing Li
Summary: The separation of propane/propylene mixtures is a challenging task in the petrochemical industry. Metal-organic frameworks (MOFs) have been identified as promising materials for this task due to their structural diversity and tunable pore dimensions. However, the low adsorption capacity and slow diffusion kinetics of MOFs have limited their efficiency. In this study, we report the fabrication of nano-sized MOF crystals for propane and propylene separation, which exhibit enhanced adsorption kinetics and improved adsorption capacity compared to micro-sized samples. This represents the highest efficiency among all reported MOF-based splitters for propane/propylene separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Hassan Abedini, Mehrdad Asgari, Martin Watt Coull, Ahmad Shariati, Mohammad Reza Khosravi-Nikou
Summary: The study demonstrates that Cu-MOF-74 framework exhibits greater capacity and affinity for propylene compared to propane, making it more efficient for propane/propylene separation than zeolite 13X. By applying novel frameworks like Cu-MOF-74, propylene can be efficiently purified into a polymer-grade level quality, highlighting the importance of using innovative solutions for challenging industrial separation applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Anh N. Hong, Huajun Yang, Tong Li, Yong Wang, Yanxiang Wang, Xiaoxia Jia, Angel Zhou, Emily Kusumoputro, Jinping Li, Xianhui Bu, Pingyun Feng
Summary: This study introduces a new family of porous materials with exceptional propane adsorption capacity and selectivity, allowing for efficient separation of propylene and propane in gas mixtures. These materials demonstrate outstanding separation performance, as well as high stability and low regeneration energy consumption.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Qi Ding, Zhaoqiang Zhang, Peixin Zhang, Jun Wang, Xili Cui, Chao-Hong He, Shuguang Deng, Huabin Xing
Summary: This study reports the high-efficient kinetic separation of propylene (C3H6) and propane (C3H8) in a bilayered metal-organic framework Zn-ATA. By manipulating intracrystalline diffusion and surface permeation, the material achieves quasi-molecular-sieving kinetic separation with a selectivity 50 times higher than nanometric Zn-ATA crystals. The breakthrough results set a new benchmark for kinetic C3H6/C3H8 separation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Youdong Cheng, Biplab Joarder, Shuvo Jit Datta, Norah Alsadun, Daria Poloneeva, Dong Fan, Rushana Khairova, Anastasiya Bavykina, Jiangtao Jia, Osama Shekhah, Aleksander Shkurenko, Guillaume Maurin, Jorge Gascon, Mohamed Eddaoudi
Summary: This article introduces a method of propylene/propane separation using membrane technology. By combining fluorinated metal-organic framework material KAUST-7 with polyimide, molecular sieving mixed matrix membranes (MMMs) were fabricated. The optimal membrane with high MOF loading exhibited a propylene permeability of approximately 95 barrer and a propylene/propane selectivity of approximately 20, surpassing the current state-of-the-art limits.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Fuqiang Chen, Xinglei Huang, Kaiqing Guo, Liu Yang, Haoran Sun, Wei Xia, Zhiguo Zhang, Qiwei Yang, Yiwen Yang, Dan Zhao, Qilong Ren, Zongbi Bao
Summary: A polysaccharide-based CD-MOF-derived ultramicroporous carbon adsorbent with finely tuned pore size was successfully prepared for the molecular sieving separation of C3H6/C3H8, showing high adsorption capacity and an ultrahigh adsorption ratio, demonstrating its potential for industrial separation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Fuqiang Chen, Xinglei Huang, Kaiqing Guo, Liu Yang, Haoran Sun, Wei Xia, Zhiguo Zhang, Qiwei Yang, Yiwen Yang, Dan Zhao, Qilong Ren, Zongbi Bao
Summary: In this study, molecular sieving separation of C3H6/C3H8 was achieved using polysaccharide-based CD-MOF-derived ultramicroporous carbon adsorbents. The optimized C-CDMOF-2-700 exhibited a delicate structure with an appropriate pore size, resulting in a high C3H6 uptake and an ultrahigh C3H6/C3H8 uptake ratio. This well-designed carbon adsorbent shows great potential for industrial C3H6/C3H8 separation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Chemical
Shuqing Song, Haifei Jiang, Hong Wu, Mingang Zhao, Zheyuan Guo, Baoyin Li, Yanxiong Ren, Yuhan Wang, Chumei Ye, Michael D. Guiver, Guangwei He, Zhongyi Jiang
Summary: Metal organic frameworks (MOFs) have potential as membrane materials for propylene/propane separation in the petrochemical industry. A mixed matrix membrane (MMM) with ZIF-8 direct-through channels (DTC) can solve the performance decline issue. The DTC-MMM exhibits weak pressure dependence and high propylene permeability, making it suitable for diverse molecular separations.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Applied
Jiayi Yong, Jiazhen Chen, Yiqi Chen, Youlie Cai, Junkuo Gao
Summary: In this study, three Hofmann-type metal-organic frameworks with narrow pore size and high open metal sites density were reported for the selective separation of propylene from propane. Among them, NiNi-Pyz exhibited the best separation performance with high uptake and selectivity. Molecular simulations confirmed that the host-guest interactions in NiNi-Pyz were achieved through its slightly smaller pore size.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chuang-Wei Zhou, Xue-Zhi Wang, Mo Xie, Ri-Qin Xia, Dong Luo, Zhao-Xia Lian, Guo-Hong Ning, Weigang Lu, Xiao-Ping Zhou, Dan Li
Summary: A self-assembled Fe4L6 capsule was developed for encapsulating and separating propylene and propane, providing a new strategy for the separation of olefin/paraffin.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Shan-Qing Yang, Fang-Zhou Sun, Rajamani Krishna, Qiang Zhang, Lei Zhou, Ying-Hui Zhang, Tong-Liang Hu
Summary: In this study, an ultramicroporous Mn-based metal-organic framework (NUM-7) with a reverse C3H8-selective behavior in the low-pressure area was reported. The material possesses electronegative aromatic benzene rings for stronger binding affinity to C3H8 and shows outstanding reverse IAST selectivity values. The fascinating C3H8-trapping behavior mainly depends on multiple C-H center dot center dot center dot pi interactions and may provide potential for one-step purification of C3H6.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Daofei Lv, Junhao Xu, Pingjun Zhou, Shi Tu, Feng Xu, Jian Yan, Hongxia Xi, Zewei Liu, Wenbing Yuan, Qiang Fu, Xin Chen, Qibin Xia
Summary: The separation of propylene and propane is a challenging process in the petrochemical industry. This study reports the use of two natural C4 linkers based metal-organic frameworks for efficient C3H6/C3H8 separation. The results show high adsorption selectivities and uptake ratios, establishing a new benchmark for C3H6 sorbents.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Qi Ding, Zhaoqiang Zhang, Cong Yu, Peixin Zhang, Jun Wang, Liyun Kong, Xili Cui, Chao-Hong He, Shuguang Deng, Huabin Xing
Summary: The efficient separation of propylene and propane in a phosphate anion-functionalized metal-organic framework was achieved by a synergetic effect of equilibrium and kinetics, offering excellent thermodynamic and kinetic selectivity for C3H6/C3H8 separation. This breakthrough method demonstrates outstanding separation capability and easy regeneration, marking the first observation of equilibrium and kinetics cooperative C3H6/C3H8 adsorption separation in anion-functionalized MOFs.
Article
Nanoscience & Nanotechnology
Yuxiu Sun, Zhengqing Zhang, Lei Tian, Hongliang Huang, Chenxu Geng, Xiangyu Guo, Zhihua Qiao, Chongli Zhong
Summary: By incorporating composites of ionic liquids and zeolitic imidazolate frameworks (ZIFs) to form mixed-matrix membranes, a promising strategy has been presented for designing membranes with high performance in gas separation, achieving dramatic improvements in propylene permeability and separation factor compared to using individual components as fillers.
ACS APPLIED MATERIALS & INTERFACES
(2021)