High-Pressure Methane Adsorption in 5A Zeolite and the Nature of Gas-Solid Interactions

Mentasty, L.; Faccio, R. J.; Zgrablich, G.

doi:10.1177/026361749100800205

Cited by 16 publications

(11 citation statements)

References 8 publications

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“…During the early stages of research into ANG storage systems in the 1990s, great efforts focused mainly on porous zeolites. [61][62][63][64]72 A number of zeolites with limited structures have been designed and examined as adsorbents for methane storage. However, almost all of them display a relatively low methane storage capacity, typically below 110 cm 3 (STP) cm À3 , as shown in Table 1.…”

Section: Porous Zeolites For Methane Storagementioning

confidence: 99%

Porous Metal-Organic Frameworks: Promising Materials for Methane Storage

Wen

Zhou

et al. 2016

Chem

313

292

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Metal-organic frameworks (MOFs) are the most promising porous adsorbents for methane storage; however, the highest reported storage capacities of about 270 cm 3 (STP) cm À3 at 298 K and 65 bar are still much lower than the new US Department of Energy (DOE) target of 350 cm 3 (STP) cm À3. Furthermore, it is very difficult to reach the DOE targets for volumetric (350 cm 3 [STP] cm À3) and gravimetric (0.5 g [CH 4 ]/g) storage capacities simultaneously for a single MOF. This review systematically evaluates and compares the methane storage capacities of reported MOFs at both 298 and 270 K. We found that slightly reducing the storage temperature to 270 K can significantly improve both the volumetric and gravimetric uptake. Our discoveries highlight that two unique MOFs, NU-111 and MOF-177 (which have high pore volumes of 2.09 and 1.89 cm 3 g À1 , respectively), not only have very high gravimetric capacities of 0.5 and 0.43 g/g, respectively, but also exhibit the highest working capacities ever reported: 239 and 230 cm 3 (STP) cm À3 , respectively. In addition, a usable empirical equation for predicting methane storage capacities (at 270 K and 65 bar) and some engineering strategies for thermal management are discussed.

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Section: Porous Zeolites For Methane Storagementioning

confidence: 99%

Porous Metal-Organic Frameworks: Promising Materials for Methane Storage

Wen

Zhou

et al. 2016

Chem

313

292

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“…Modifications such as thick-walled tanks and complex safety valves would be required. The use of adsorbent materials, such as activated carbons and zeolites, among others (Rodriguez-Reinoso & Molina-Sabio, 1992;Parkyns & Quinn, 1995;Sircar et al, 1996;Alcañiz-Monge et al, 1997;Lozano-Castello et al, 2002c;Almansa et al, 2004;Marsh & Rodriguez-Reinoso, 2006;Mentasty et al, 1991;Triebe et al, 1996), for the storage of natural gas at low pressures, is known as adsorbed natural gas (ANG). Pressures are relatively low, of the order of 2 to 4 MPa at room temperature, which represents an interesting alternative for the transport and applications at large scale.…”

Section: Natural Gas 206mentioning

confidence: 99%

Adsorption of Methane in Porous Materials as the Basis for the Storage of Natural Gas

Sapag¹,

Vallone²,

Blanco³

et al. 2010

Natural Gas

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“…The methane adsorption property of the porous materials has attracted strong interest toward a development of a new natural gas storage method. [40][41][42] We present here the structures, stability, and gas adsorption properties of the porous compounds.…”

Section: Introductionmentioning

confidence: 99%

Microporous Materials Constructed from the Interpenetrated Coordination Networks. Structures and Methane Adsorption Properties

et al. 2000

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Five new coordination compounds with 4,4′-azopyridine (azpy), [Mn(azpy)(NO 3 ) 2 (H 2 O) 2 ]‚ 2EtOH (1‚2EtOH), [Co 2 (azpy) 3 (NO 3 ) 4 ]‚Me 2 CO‚3H 2 O (2‚Me 2 CO‚3H 2 O), [Co(azpy) 2 (NCS) 2 ]‚ 0.5EtOH (3‚0.5EtOH), [Cd(azpy) 2 (NO 3 ) 2 ]‚(azpy) (4‚azpy), and [Cd 2 (azpy) 3 (NO 3 ) 4 ]‚2Me 2 CO (5‚ 2Me 2 CO), have been synthesized and structurally characterized. The reaction of Mn(NO 3 ) 2 ‚ 6H 2 O with azpy in ethanol/acetone affords 1‚2EtOH, whose network consists of onedimensional chains of [Mn(azpy)(H 2 O) 2 ] n . The chains are associated by hydrogen bonding to provide a logcabin-type three-dimensional structure, which creates about 8 × 8 Å of channels, filled with ethanol molecules. The treatment of Co(NO 3 ) 2 ‚6H 2 O and Co(NCS) 2 ‚4H 2 O with azpy produces 2‚Me 2 CO‚3H 2 O and 3‚0.5EtOH, respectively, which have a brick-wall and a rhombus-type two-dimensional networks. The reaction of Cd(NO 3 ) 2 ‚4H 2 O with azpy affords 4‚azpy from the ethanol/H 2 O media, while the reaction in the ethanol/acetone media provides 5‚2Me 2 CO. 4‚azpy and 5‚2Me 2 CO form a square-grid-and a herringbone-type twodimensional networks, respectively. The two-dimensional sheets of 4‚azpy stack without interpenetration, leading to large size of channels, which are filled with free azpy molecules. The two-dimensional networks of 2‚Me 2 CO‚3H 2 O, 3‚0.5EtOH, and 5‚2Me 2 CO are quadruply, doubly, and triply interpenetrated, respectively. Despite the interpenetration, their networks create the microporous channels filled with guest solvent molecules. The dried compounds 2, 3, and 5 adsorb methane between 1 and 36 atm at 25°C, in which 3 and 5 exhibit Langmuir-type isotherms. The inherent micropore volumes for 3 and 5 are 0.685 and 3.30 mmol/g, respectively. XRPD measurements under reduced pressure at 100°C reveal that the channel structure of 3 is the most stable in these compounds; the observed XRPD pattern is in good agreement with that of the simulated pattern of the single-crystal model. Compounds 2 and 5 also retain the porous structures, however, their pore structures are distorted upon loss of guest included molecules.

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High-Pressure Methane Adsorption in 5A Zeolite and the Nature of Gas-Solid Interactions

Cited by 16 publications

References 8 publications

Porous Metal-Organic Frameworks: Promising Materials for Methane Storage

Porous Metal-Organic Frameworks: Promising Materials for Methane Storage

Adsorption of Methane in Porous Materials as the Basis for the Storage of Natural Gas

Microporous Materials Constructed from the Interpenetrated Coordination Networks. Structures and Methane Adsorption Properties

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