Adsorption characteristics of methane on Maxsorb III by gravimetric method

Thu, Kyaw; Kim, Young Deuk; Ismil, Azhar Bin; Saha, Bidyut Baran; Ng, Kim Choon

doi:10.1016/j.applthermaleng.2014.04.076

Cited by 46 publications

(15 citation statements)

References 22 publications

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“…Although a qualitative agreement is found in terms of the relative capacities for CH 4 and CO 2 , as well as the general trend of the isotherms, the quantitative accuracy is limited for both models' predictions which could be attributed to the differences in adsorption characteristics, such as pore size distribution (PSD) of the Norit and Maxsorb. Activated carbon Norit R1 Extra has a narrow PSD that peaks between 5 and 6 Å while Maxsorb exhibits wider PSD with two prominent pore diameters: 12 and 20 Å (Thu et al 2014). Scaling of isotherms using the ratios of BET specific surface area is probably not adequate to quantitatively predict the mixture adsorption isotherms over the pressure ranges considered here.…”

Section: Binary Gas Adsorptionmentioning

confidence: 97%

Multicomponent adsorption of biogas compositions containing CO2, CH4 and N2 on Maxsorb and Cu-BTC using extended Langmuir and Doong–Yang models

et al. 2015

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Upgrading raw biogas and landfill gas to methane purity [98 % is a vital prerequisite for the utilization of biogas for compressed natural gas pipeline applications. Pressure swing adsorption (PSA) is an industrial separation technology widely used for the separation and purification of methane rich streams from raw biogas and landfill gas. Current PSA technologies make use of differential adsorption of gases on traditional adsorbents, such as zeolites, activated alumina and molecular sieves. In order to evaluate the potential of new adsorbent materials, such as metal-organic frameworks (MOFs) for PSA applications, and for PSA process development, thermodynamic equilibrium adsorption isotherms data of the pure components and mixtures and their adsorption isosteric heats are required. In this work we use extended Langmuir (ELM) model and Doong-Yang multi-component (DYM) adsorption model to predict the isotherms of biogas compositions containing binary and ternary mixtures of CO 2 , CH 4 and N 2 on activated carbon Maxsorb and metal-organic framework Cu-BTC. The model parameters required for predicting the mixture adsorption isotherms using the ELM and DYM are obtained, respectively from the singlesite Langmuir and Dubinin-Astakhov non-linear regression of pure gas isotherms experimentally measured at 298 K and over a pressure range of 0-5 MPa. Predicted data are compared with the experimental binary and ternary mixture adsorption isotherms on Norit R1 extra and Cu-BTC available in the literature. Selectivity and thermodynamic delta-loading of equimolar mixtures of CH 4 and CO 2 on Cu-BTC and Maxsorb are determined from the predicted mixture isotherms and are compared with that of a traditional PSA adsorbent, zeolite 13X.

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Section: Binary Gas Adsorptionmentioning

confidence: 97%

Multicomponent adsorption of biogas compositions containing CO2, CH4 and N2 on Maxsorb and Cu-BTC using extended Langmuir and Doong–Yang models

et al. 2015

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“…The temperature increase of each coal sample during methane adsorption was caused by the adsorption heat of the coal surface and the methane molecules, which is closely related to the amount of methane adsorption in coal, namely [1,2],…”

Section: 5mmmentioning

confidence: 99%

“…However, compared with other adsorbents, such as Maxsorb III, ACF, and MOFs [3], the diversity of the macerals, variations in mineral species, and an uneven distribution of pores and fractures in coal create inhomogeneous methane adsorption characteristics [4][5][6], rendering an evaluation of the storage characteristics difficult, and hindering the industrial exploitation of CBM reserves. Past studies have shown that the micro pores (<10 nm) in coal are the main sites of methane storage owing to their large surface area, and that the intercrystalline pores and intragranular corrosion pores of clay minerals also have a fair methane adsorption capacity [1,2,7]. Based on methane adsorption capacity tests of different microlithotypes, Chalmers [8] hypothesized that methane is held as a solution gas in liptinite-rich coals, and in micropores in liptinite-poor coals through physical sorption.…”

Section: Introductionmentioning

confidence: 98%

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Experimental meso scale study on the distribution and evolution of methane adsorption in coal

Zhou

Feng

Zhao

et al. 2017

Applied Thermal Engineering

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“…If the volumetric method is employed for the surface characteristics analysis, then the gravimetric method is adopted for gas adsorption measurements. (Thu et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effect of Methane Gas Flow Rate on Adsorption Capacity and Temperature Distribution of Activated

Alhamid¹,

Nasruddin²,

Senoadi³

et al. 2015

IJTech

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Adsorbed Natural Gas (ANG) is one of the gas storage methods which specialize in low pressure. This method is more competitive compared to Compressed Natural Gas (CNG). ANG is based on an adsorption process that involves adsorbate and adsorbent. This research is conducted to observe the effects of gas flow-rate on adsorption capacity and the temperature distribution of adsorbent. The adsorbent is a commercially activated carbon, and methane gas is the adsorbate. Methane flow rates are 1 standard liter per minute (SLPM) and 20 SLPM. Temperature in the pressure vessel is maintained at 25°C and the pressure at 3.5 MPa. The result shows that the adsorption capacity of activated carbon is higher at a lower gas flow rate. While a higher gas flow rate causes a higher temperature difference in the adsorption and in desorption process.

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Adsorption characteristics of methane on Maxsorb III by gravimetric method

Cited by 46 publications

References 22 publications

Multicomponent adsorption of biogas compositions containing CO2, CH4 and N2 on Maxsorb and Cu-BTC using extended Langmuir and Doong–Yang models

Multicomponent adsorption of biogas compositions containing CO2, CH4 and N2 on Maxsorb and Cu-BTC using extended Langmuir and Doong–Yang models

Experimental meso scale study on the distribution and evolution of methane adsorption in coal

Effect of Methane Gas Flow Rate on Adsorption Capacity and Temperature Distribution of Activated

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