Heuristic design of pressure swing adsorption: a preliminary study

Jain, Swapnil; Moharir, Arun S.; Li, Pu; Woźny, G.

doi:10.1016/s1383-5866(02)00208-3

Cited by 54 publications

(29 citation statements)

References 13 publications

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“…The higher the separation factor, the higher the purity of the product that can be expected in an adsorption process [40]. Few studies give experimentally calculated selectivities from multicomponent adsorption experiments; the reported values are most frequently based on pure adsorption data, or in the best of cases, on IAST predictions.…”

Section: Fixed-bed Adsorption Experimentsmentioning

confidence: 99%

Sustainable biomass-based carbon adsorbents for post-combustion CO2 capture

González

Plaza

Rubiera

et al. 2013

Chemical Engineering Journal

228

128

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Sustainable carbon adsorbents have been produced from biomass residues by single-step activation with CO 2 . The activation conditions were optimised to develop narrow micropores in order to maximise the CO 2 adsorption capacity of the carbons under post-combustion conditions. The equilibrium of adsorption of pure CO 2 and N 2 was measured between 0 and 50 ˚C up to 120 kPa for the outstanding carbons. The CO 2 adsorption capacity measured at low pressures is among the highest ever reported for carbon materials (0.6-1.1 mmol g -1 at 15 kPa and 25-50 ˚C), and the average isosteric heat of adsorption is typical of a physisorption process: 27 kJ mol -1 . Dynamic experiments carried out in a fixed-bed adsorption unit showed fast adsorption and desorption kinetics and a high CO 2 -over-N 2 selectivity. These adsorbents are able to separate a mixture with 14 % CO 2 (balance N 2 ) at 50 ˚C, conditions that can be considered as representative of post-combustion conditions, and they can be easily regenerated.

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Section: Fixed-bed Adsorption Experimentsmentioning

confidence: 99%

Sustainable biomass-based carbon adsorbents for post-combustion CO2 capture

González

Plaza

Rubiera

et al. 2013

Chemical Engineering Journal

228

128

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“…The main drop of nitrogen concentration in the outlet of zeolite 13X occurs at the time of about 125 seconds. Nitrogen concentration in the outlet of zeolite 13X approaches zero after about 180 seconds [28][29][30][31].…”

Section: Resultsmentioning

confidence: 99%

Dynamic Modeling of Nitrogen Adsorption on Zeolite 13X Bed

Kakav¹,

Shokroo²,

Baghbani³

et al. 2017

FMRIJ

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Generally, the common adsorption processes of air separation are divided into two categories: The first category is consists of processes which make use of zeolites as nitrogen adsorbent under the equilibrium conditions and oxygen is a process product. The second one contains processes which utilize Carbon Molecular Sieves (CMSs) as oxygen adsorbent. Zeolite 13X is the most commonly adsorbent used in the air separation for oxygen production. In this work, nitrogen adsorption behavior on zeolite 13X bed is simulated. Desorption and adsorption dynamics of zeolite 13X was investigated in order to study the behavior of this zeolite. The simulation results showed that the high Roll-up Phenomena occurs for oxygen than nitrogen. There is a large mass transfer zone (MTZ) for zeolite 13X. Therefore, the adsorption rate of zeolite 13X is high. The main drop of nitrogen concentration in the outlet of zeolite 13X occurs at the time of about 125 seconds. Nitrogen concentration in the outlet of zeolite 13X approaches zero after about 180 seconds. Keywords:

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“…From table 1 it is clear to see that the porosity of AC is 42% and this pore volume mainly consists of mesopores and micropores. For PSA design and operation the porosity should be in the range of 0.3 to 0.5 (Jain et al, 2003). This property suggests that the material can be used for gas adsorption process.…”

Section: Selection and Characterization Of Adsorbentmentioning

confidence: 99%