Adsorption equilibrium of binary mixtures of carbon dioxide and nitrogen on zeolites ZSM-5 and 13X

Hefti, Max; Marx, Dorian; Joss, Lisa; Mazzotti, Marco

doi:10.1016/j.micromeso.2015.05.044

Cited by 134 publications

(136 citation statements)

References 68 publications

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“…Under these conditions, CO2 capacities fall to the range of 0.7-1.2 mmol/g. It is worthy to highlight that these values are still higher or equal than those reported from some commercial carbon-based adsorbents, i.e., Norit R2030 CO2 (Plaza et al, 2015), BPL (Chue et al, 1995), Norit AC 1 Extra (Dreisbach et al, 1999), BrightblackTM (Hornbostel et al, 2013), or VR-5-M (Wahby et al, 2010), very similar to some carbon fiber composites obtained by petroleum pith (Thiruvenkatachari et al, 2013), or even to other attractive adsorbents such as some MOFs (Krishna and Van Baten, 2012;Li et al, 2012;Sabouni et al, 2013;Xu et al, 2013;Xian et al, 2015) and zeolites (Hefti et al, 2015), tested under similar operating conditions. In addition, it should be kept in mind that these materials would present the added value of having being prepared by valorization of highly available underutilized biomass residues and using much more inexpensive, straightforward, and easy to scale-up procedures.…”

Section: Adsorption Equilibrium Studiesmentioning

confidence: 63%

Biomass Waste Carbon Materials as adsorbents for CO2 Capture under Post-Combustion Conditions

et al. 2016

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A series of porous carbon materials obtained from biomass waste have been synthesized, with different morphologies and structural properties, and evaluated as potential adsorbents for CO2 capture in post-combustion conditions. These carbon materials present CO2 adsorption capacities, at 25°C and 101.3 kPa, comparable to those obtained by other complex carbon or inorganic materials. Furthermore, CO2 uptakes under these conditions can be well correlated with the narrow micropore volume, derived from the CO2 adsorption data at 0°C ( ) V CO 2 DR . In contrast, CO2 adsorption capacities at 25°C and 15 kPa are more related to only pores of sizes lower than 0.7 nm. The capacity values obtained in column adsorption experiments were really promising. An activated carbon fiber obtained from Alcell lignin, FCL, presented a capacity value of 1.3 mmol/g (5.7%wt). Moreover, the adsorption capacity of this carbon fiber was totally recovered in a very fast desorption cycle at the same operation temperature and total pressure and, therefore, without any additional energy requirement. Thus, these results suggest that the biomass waste used in this work could be successfully valorized as efficient CO2 adsorbent, under post-combustion conditions, showing excellent regeneration performance.

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Section: Adsorption Equilibrium Studiesmentioning

confidence: 63%

Biomass Waste Carbon Materials as adsorbents for CO2 Capture under Post-Combustion Conditions

et al. 2016

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“…Furthermore, isotherm measurements in standard equipment are limited to single‐component analysis. Multicomponent techniques exist but are only to a limited extent commercially . Especially for real filter or sensing applications, the test of potential materials under dynamic conditions and multigas adsorption (test gas mixtures, presence of humidity) is mandatory.…”

Section: Methodological Aspects: From Rapid Screening To Demonstratormentioning

confidence: 99%

Adsorption and Detection of Hazardous Trace Gases by Metal–Organic Frameworks

et al. 2018

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The quest for advanced designer adsorbents for air filtration and monitoring hazardous trace gases has recently been more and more driven by the need to ensure clean air in indoor, outdoor, and industrial environments. How to increase safety with regard to personal protection in the event of hazardous gas exposure is a critical question for an ever-growing population spending most of their lifetime indoors, but is also crucial for the chemical industry in order to protect future generations of employees from potential hazards. Metal-organic frameworks (MOFs) are already quite advanced and promising in terms of capacity and specific affinity to overcome limitations of current adsorbent materials for trace and toxic gas adsorption. Due to their advantageous features (e.g., high specific surface area, catalytic activity, tailorable pore sizes, structural diversity, and range of chemical and physical properties), MOFs offer a high potential as adsorbents for air filtration and monitoring of hazardous trace gases. Three advanced topics are considered here, in applying MOFs for selective adsorption: (i) toxic gas adsorption toward filtration for respiratory protection as well as indoor and cabin air, (ii) enrichment of hazardous gases using MOFs, and (iii) MOFs as sensors for toxic trace gases and explosives.

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“…SG is used as a guard layer against traces of water present in the feed gas, as the CO 2 capacity of 13X is drastically decreased in the presence of water [17,18]. Zeolite 13X is chosen because of its high CO 2 adsorption capacity [19,20]. The adsorbent characteristics are summarized in Sect.…”

Section: Methodsmentioning

confidence: 99%

Experimental Validation of a Multidimensional Model for an Indirect Temperature Swing Adsorption Unit

Ried

Duarte

Hinrichsen

2020

Chemie Ingenieur Technik

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Conventional temperature swing adsorption (TSA) is mainly applied for the removal of trace contaminants. Indirectly heated and cooled adsorbers were developed to make bulk separation economically feasible. A quasi-continuous TSA process to remove CO 2 from an N 2 /CO 2 mixture with a pilot plant is established. The experimentally determined data are taken to validate and to adjust a 2D simulation model. For the validation, the CO 2 desorption, the N 2 recovery rate as well as the axial temperature profile are compared. The successful model validation can be seen in the good agreement between simulation and experimental results. Moreover, this process is able to separate high amounts of CO 2 and to produce a nearly CO 2 -free product stream.

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Adsorption equilibrium of binary mixtures of carbon dioxide and nitrogen on zeolites ZSM-5 and 13X

Cited by 134 publications

References 68 publications

Biomass Waste Carbon Materials as adsorbents for CO2 Capture under Post-Combustion Conditions

Biomass Waste Carbon Materials as adsorbents for CO2 Capture under Post-Combustion Conditions

Adsorption and Detection of Hazardous Trace Gases by Metal–Organic Frameworks

Experimental Validation of a Multidimensional Model for an Indirect Temperature Swing Adsorption Unit

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