Separation of SF6 from SF6/N2 mixture using metal–organic framework MIL-100(Fe) granule

Kim, Pil Joong; You, Young Woo; Park, Hosik; Chang, Jong San; Bae, Yang‐Seop; Lee, Chang Ha; Suh, Jeong Kwon

doi:10.1016/j.cej.2014.09.123

Cited by 137 publications

(67 citation statements)

References 50 publications

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“…The result indicated that the surface area and total pore volume of Cu(I)@MIL-100(Fe) decreased with the CuCl loadings, which could be attributed to the occupation of partial surface area and pore volume of MIL-100(Fe) by CuCl, similar as reported MIL-101 after loading Pd[36,37] and CuCl 2 the PXRD patterns of Cu(I)@MIL-100(Fe) with various CuCl loadings. The parent MIL-100(Fe) showed the characteristic peaks at 6.3°, 10.2°,11.0°, and 20.0°, consistent with those reported in the literature[23,38], Cu(I)@MIL-100(Fe) maintained the similar characteristic peaks as MIL-100(Fe),…”

supporting

confidence: 89%

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A supported Cu(I)@MIL-100(Fe) adsorbent with high CO adsorption capacity and CO/N2 selectivity

Peng

Xian

Xiao

et al. 2015

Chemical Engineering Journal

146

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confidence: 89%

“…Besides these conventional adsorbents, an emerging class of porous materials, metal organic frameworks (MOFs) have shown great advantages for gas adsorption and separation due to their large surface area, controllable porosity and adjustable surface properties [19][20][21][22][23]. The CO adsorption performance of a few MOFs has been investigated.…”

mentioning

confidence: 99%

A supported Cu(I)@MIL-100(Fe) adsorbent with high CO adsorption capacity and CO/N2 selectivity

Peng

Xian

Xiao

et al. 2015

Chemical Engineering Journal

146

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“…SF 6 was preferentially adsorbed over N 2 in porous media, because of its strong adsorption potential; in contrast, SF 6 was rarely adsorbed in extremely narrow nanopores81112131415. SF 6 adsorption was rarely observed in zeolites with pores with a diameter of 0.5 nm, but N 2 was adsorbed easily in such narrow nanopores8; in contrast, zeolites with pores with a diameter of 1.0 nm selectively adsorbed SF 6 molecules over N 2 molecules11.…”

mentioning

confidence: 99%

“…The hydration of SF 6 and N 2 was also conducted under high pressures10. Motivated by these high costs, adsorption81112131415 and membrane separation9161718 have been proposed as low-energy-cost techniques, and the adsorption technique shows promise for applications in a variety of fields.…”

mentioning

confidence: 99%

“…SF 6 adsorption was rarely observed in zeolites with pores with a diameter of 0.5 nm, but N 2 was adsorbed easily in such narrow nanopores8; in contrast, zeolites with pores with a diameter of 1.0 nm selectively adsorbed SF 6 molecules over N 2 molecules11. Metal organic frameworks, which have uniform and narrow nanopores, also show highly selective adsorption1213. The pore size dependence of the SF 6 -and-N 2 separation abilities of mesoporous silica and zeolite-templated carbons was evaluated by Builes et al , using grand canonical Monte Carlo simulations14; 1.1 nm-nanopores separated SF 6 and N 2 well.…”

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confidence: 99%

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Wide Carbon Nanopores as Efficient Sites for the Separation of SF6 from N2

Takase

Kanoh

Ohba

2015

Sci Rep

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SF6 and SF6-N2 mixed gases are used widely as insulators, but such gases have high greenhouse gas potential. The separation of SF6 from SF6-N2 mixed gases is an inevitable result of their use. Single-walled carbon nanohorns (CNHs) were used here for a fundamental study of the separation of SF6 and N2. The diameters of the interstitial and internal nanopores of the CNHs were 0.7 and 2.9 nm, respectively. The high selectivity of SF6 over N2 was observed only in the low-pressure regime in the interstitial 0.7 nm nanopores; the selectively was significantly decreased at higher pressures. In contrast, the high selectivity was maintained over the entire pressure range in the internal 2.9-nm nanopores. These results showed that the wide carbon nanopores were efficient for the separation of SF6 from the mixed gas.

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Granulation and Shaping of Metal-Organic Frameworks

Lee

Valekar

Hwang

et al. 2016

The Chemistry of Metal-Organic Frameworks: Synthesis, Characterization, and Applications

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IntroductionShaping and forming of metal-organic frameworks (MOFs) are essential for practical applications like adsorption/separation and catalysis, which require structuring of the nano-/microcrystalline fine powders of MOFs into a macroscopic body [1][2][3][4][5][6][7]. When a process for catalysis or adsorptive separation is scaled up to the pilot or commercial scale, the form in which an active catalyst or adsorbent is used is decisive in determining the ultimate performance of the unit [8][9][10]. In this respect, the size and shape of the target material require a compromise between minimizing pore diffusion effects in the material particles, for which small particles are necessary, and minimizing the pressure drop across the reactor, which requires large particle sizes [11]. The shaped MOFs should maintain excellent performance shown by the original powder forms based on their high porosity, crystallinity, and flexibility [12]. Therefore, the proper selection of the shaping or forming process is important in the MOF research field for chemical engineering and industrial applications. As the shaping methods are often proprietary and often more of an art than a science, the exact procedures are rarely disclosed.The shaped MOFs can also be prepared using techniques (Figure 18.1) that have typically been utilized for synthesizing catalysts and adsorbents from porous materials, such as pressing, extrusion, granulation and spray drying, foaming, casting, and coating. Well-shaped bodies have been produced in the forms of pellets, tablets, monoliths, granules, and spheres [13][14][15][16]. However, to utilize shaped MOFs successfully for industrial applications, they should have sufficient mechanical strength, chemical stability, attrition resistance, maximal bulk density, and minimal wasted space in the storage vessel [17][18][19][20][21][22][23][24]. As the performance of shaped MOFs for industrial or large-scale applications depends on several parameters, including the mass-and heat-transfer properties, gas diffusion kinetics, pressure drop across material, mechanical strength, and volumetric efficiency, achieving high mechanical integrity of the structured MOF is critical to the performance in real engineering processes. The Chemistry of Metal-Organic Frameworks: Synthesis, Characterization, and Applications, First Edition. Edited by Stefan Kaskel.

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Separation of SF6 from SF6/N2 mixture using metal–organic framework MIL-100(Fe) granule

Cited by 137 publications

References 50 publications

A supported Cu(I)@MIL-100(Fe) adsorbent with high CO adsorption capacity and CO/N2 selectivity

A supported Cu(I)@MIL-100(Fe) adsorbent with high CO adsorption capacity and CO/N2 selectivity

Wide Carbon Nanopores as Efficient Sites for the Separation of SF6 from N2

Granulation and Shaping of Metal-Organic Frameworks

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