2018
DOI: 10.1021/acs.iecr.7b04391
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Performance Comparison of Metal–Organic Framework Extrudates and Commercial Zeolite for Ethylene/Ethane Separation

Abstract: Mg-MOF-74 is one of the most well-known metal–organic frameworks (MOFs) and has been widely studied for gas adsorption and separation. Nevertheless, employment of original Mg-MOF-74 in powder form inevitably leads to a high pressure drop across column and even dust pollution in practical application. In this work, we molded powder Mg-MOF-74 into extrudates and tested its performance on adsorptive separation of ethylene/ethane mixture for the first time, taking commercialized benchmark 13X zeolite as comparison… Show more

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Cited by 51 publications
(33 citation statements)
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“…Apart from this, inorganic membranes, such as those based on pure zeolites and metal-organic frameworks (MOFs), are typically high-performing but hampered by their poor scalability potential [30]. Beyond membrane performances, other real-life challenges, such as effects of high temperatures and pressures, presence of moisture in the feed gas and impurities such as H 2 S that are damaging to the membranes, must be addressed to realize industrial applications [31][32][33][34][35][36][37]. However, in this work, our aim is to develop mixed-matrix membranes, which amalgamate the merits of both polymeric and inorganic membranes, to achieve enhanced C 2 H 4 /C 2 H 6 separation.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Apart from this, inorganic membranes, such as those based on pure zeolites and metal-organic frameworks (MOFs), are typically high-performing but hampered by their poor scalability potential [30]. Beyond membrane performances, other real-life challenges, such as effects of high temperatures and pressures, presence of moisture in the feed gas and impurities such as H 2 S that are damaging to the membranes, must be addressed to realize industrial applications [31][32][33][34][35][36][37]. However, in this work, our aim is to develop mixed-matrix membranes, which amalgamate the merits of both polymeric and inorganic membranes, to achieve enhanced C 2 H 4 /C 2 H 6 separation.…”
Section: Introductionmentioning
confidence: 99%
“…To date, MOF is an attractive filler material for mixed-matrix membranes for gas separation process, owing to its large pore volume and accessible surface area for increasing gas diffusivity. On the other hand, facile post-and pre-synthetic functionalization of MOFs can enhance the affinity of the gas molecules to the filler materials, leading to an improvement in gas solubility [36,37,41,42]. More importantly, MOFs is more compatible with the organic polymer matrix in view of the moieties in the frameworks that are similarly organic in nature.…”
Section: Introductionmentioning
confidence: 99%
“…However, the adsorption selectivity of such porous materials is far from ready to apply in practical industrial application because of the inherent drawbacks of chaotic pores structures . Metal‐organic frameworks (MOFs), as an emerging class of porous materials with enormous surface areas and adjustable pore sizes, are of great interest for gas separation, such as CO 2 /CH 4 , CO 2 /C 2 H 2 , and light hydrocarbons separation . In terms of MOFs for separation of CH 4 /N 2 , only a few MOFs have been able to fulfill this important separation during the decades .…”
Section: Introductionmentioning
confidence: 99%
“…Most focus has been placed on MOFs with coordinatively unsaturated sites (CUS), where it can be expected that the unsaturated hydrocarbons will preferentially adsorb at the metal centers due to significant metal-π-interactions [21][22][23]. For example, the M-MOF-74 series (with M = Mg, Mn, Fe, Co), containing open metal sites (OMS), has been studied for alkane/alkene separation, and particularly high selectivities for C2 and C3 alkenes over the corresponding alkanes were observed for Co-MOF-74 [24,25], and Fe-MOF-74 [22,26]. Co-MOF-74 also exhibits a very high acetylene uptake capacity [27].…”
Section: Introductionmentioning
confidence: 99%