Semi-clathrate hydrate process of methane in porous media-microporous materials of 5A-type zeolites

Zhao, Yang; Zhao, Junfang; Liang, Weiguo; Gao, Qiang; Yang, Dinglong

doi:10.1016/j.fuel.2018.01.067

Cited by 38 publications

(27 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zeolites are suitable porous materials due to their high mechanical and thermal stability, large surface areas, and tunable surface chemistry. As far as the authors are aware, few zeolites have been reported as methane hydrate promoters: RHO, 13A, 13X, , 3A, and 5A. , …”

mentioning

confidence: 99%

“…8,9 Local heat of formation can slow hydrate growth if not removed, and impeded water ordering may prevent hydrate cages from forming. 10,11 Several approaches have been proposed to overcome these barriers, such as adding chemical additives, 12,13 modifying apparatus design, 14,15 and using porous materials. In particular, porous materials provide multiple advantages for hydrate promotion: large surface area (e.g., increases gas-to-water contact area) 9 and good surface chemistry (e.g., removes local heat of formation, 11 positively affects water ordering, 10 or adsorbs methane 16 ).…”

mentioning

confidence: 99%

“…In addition, pore size and channel shape/ topology can influence hydrate promotion. 17 A wide assortment of porous materials are undergoing research, such as organic (e.g., activated carbon 18 ), hybrid organic−inorganic (e.g., metal organic frameworks 19,20 ), and inorganic (e.g., zeolites 8,13,15,21,22 ) among others. Zeolites are suitable porous materials due to their high mechanical and thermal stability, large surface areas, and tunable surface chemistry.…”

mentioning

confidence: 99%

“…As far as the authors are aware, few zeolites have been reported as methane hydrate promoters: RHO, 8 13A, 21 13X, 21,22 3A, 15 and 5A. 13,21 Two small pore zeolites suitable as promoters for methane hydrate formation are SAPO-34 and SSZ-13. These zeolites crystallize in the same chabazite topology, illustrated in Figure 1(b); thus, both have limiting pore apertures of 3.8 Å, an internal pore diameter of ∼7.4 Å, and surface areas in the ∼450−550 m 2 / g range.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Promoting Methane Hydrate Formation for Natural Gas Storage over Chabazite Zeolites

Denning

Majid

Crawford

et al. 2021

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Gas hydrates are a promising methane storage method. This study investigates the potential for zeolites to overcome hydrate formation limitations. The chabazite zeolites SSZ-13 and SAPO-34 increased water-to-hydrate conversion from 5.8 ± 1.4% to 91.3 ± 0.5% and 38.4 ± 1.5%, respectively, due to the high surface area of the zeolites enlarging the gas-to-water contact area. SSZ-13 promoted on average 2.6 times more hydrate growth than SAPO-34 due to SSZ-13's more hydrophobic nature resulting in higher methane adsorption (can be consumed in hydrate formation) and lower electrostaticity (does not restrict water activity/orientation). Overall, SSZ-13 maintains its structural integrity and exhibits reproducible hydrate formation promotion results.

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Promoting Methane Hydrate Formation for Natural Gas Storage over Chabazite Zeolites

Denning

Majid

Crawford

et al. 2021

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

show abstract

“…Zheng and Linga 15 examined the promoting effect of TBAF on the hydrate formation process to investigate the hydrate method of recovering carbon dioxide produced during pre-combustion. Moreover, Zhao Y. S. 29 and Zhao J. Z.…”

Section: Introductionmentioning

confidence: 99%

Effect of dry water on methane separation and recovery from coal mine gas based on hydrate

Zhang

et al. 2018

RSC Adv.

View full text Add to dashboard Cite

show abstract

Rapid formation of methane hydrates with compact agglomeration via regulating the hydrophilic groups of nanopromoters

et al. 2020

View full text Add to dashboard Cite

Gas hydrates have been endowed with great potential as the medium for natural gas storage & transportation. In this work, we prepared novel nanopromoters by grafting hydrophilic groups (SO3−, COO− and N[CH3]3+) covalently on polystyrene nanospheres (Group@PSNS), and for the first time achieved rapid formation of methane hydrates together compact agglomeration by regulating the hydrophilic groups on the surface of nanopromoters. When SO3−@PSNS was used, methane hydrates formed rapidly but loosely in the reactor; while for COO−@PSNS and N(CH3)3+@PSNS, even the hydrate formation rate was seriously reduced, the formed hydrates agglomerated compactly in the reactor bottom. Interestingly, when both SO3− and COO− were fixed on the nanospheres, both the hydrate growth rate and agglomeration compactness were controlled. Especially, the nanopromoter with the SO3−/COO− molar ratio of 2:1 resulted in the formation of methane hydrates with compact agglomeration morphology within 1–2 hr and with the storage capacity reaching 140–145 vol/vol.

show abstract

Semi-clathrate hydrate process of methane in porous media-microporous materials of 5A-type zeolites

Cited by 38 publications

References 50 publications

Promoting Methane Hydrate Formation for Natural Gas Storage over Chabazite Zeolites

Promoting Methane Hydrate Formation for Natural Gas Storage over Chabazite Zeolites

Effect of dry water on methane separation and recovery from coal mine gas based on hydrate

Rapid formation of methane hydrates with compact agglomeration via regulating the hydrophilic groups of nanopromoters

Contact Info

Product

Resources

About