Adsorption equilibria and rate parameters for nitrogen and methane on Maxsorb activated carbon

Sheikh, Mohammad Arshad; Hassan, M.M.; Loughlin, Kevin F.

doi:10.1016/0950-4214(96)00017-5

Cited by 62 publications

(50 citation statements)

References 11 publications

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“…As expected from previous analysis of pure gas isotherms (Otowa et al 1993;Sheikh et al 1996), CO 2 is the most adsorbed component in the mixture, except in the case of 5 % CO 2 -95 % CH 4 mixture. Both models predict the experimental data with a reasonable accuracy.…”

Section: Binary Gas Adsorptionsupporting

confidence: 62%

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 Adsorptionsupporting

confidence: 62%

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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“…If the separation is based on the difference of components at equilibrium adsorption, activated carbon was usually applied. 10 Yang and coworkers reached a selectivity ratio of 4.25 by grafting MoO 2 on high-surface carbon; however, the selectivity ratio decreased with pressure, and leveled off to about 3 at 12 atm. 11 Olajossy and coworkers used activated carbon in a VPSA process and enriched methane from 55.2% to 96-98%.…”

Section: Introductionmentioning

confidence: 96%

Enrichment of coal‐bed methane by PSA complemented with CO₂ displacement

et al. 2011

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A PSA cycle complemented with CO 2 displacement was studied for enriching coalbed methane (CBM). The column was first pressurized to the adsorption pressure with feed gas, and then N 2 was produced at column top in step 2. The feed gas switched to CO 2 at the end of step 2, and the adsorbed CH 4 was displaced and pushed to column top by CO 2 becoming the second column-top product in step 3. The CO 2 stream was shut off before it broke through the sorption bed. Then bed regeneration followed. A series of CH 4 /N 2 mixtures containing 17.62 to 51.33% CH 4 was used for feed gas. It was experimentally shown that the product concentration was higher than 90%, and methane recovery was higher than 98% even for the feed of low-methane concentration. Displacement at ambient pressure was shown more efficient than the displacement at adsorption pressure for the enrichment.

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“…The commercial activated carbon ''Maxsorb3000'' was also used as reference since it is a material that is widely used in gas storage [16][17][18][19] and has very good textural properties [20]. GSP (defatted grape seeds carbonized) and APP (acacia seed shells carbonized).…”

Section: Activated Carbonsmentioning

confidence: 99%

Sustainable porous carbons from lignocellulosic wastes obtained from the extraction of tannins

Ruíz

Ruisánchez

Gil

et al. 2015

Microporous and Mesoporous Materials

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Adsorption equilibria and rate parameters for nitrogen and methane on Maxsorb activated carbon

Cited by 62 publications

References 11 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

Enrichment of coal‐bed methane by PSA complemented with CO₂ displacement

Sustainable porous carbons from lignocellulosic wastes obtained from the extraction of tannins

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Adsorption equilibria and rate parameters for nitrogen and methane on Maxsorb activated carbon

Cited by 62 publications

References 11 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

Enrichment of coal‐bed methane by PSA complemented with CO2 displacement

Sustainable porous carbons from lignocellulosic wastes obtained from the extraction of tannins

Contact Info

Product

Resources

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Enrichment of coal‐bed methane by PSA complemented with CO₂ displacement