Hydrogen recovery from off-gases with nitrogen-rich impurity by pressure swing adsorption using CaX and 5A zeolites

Delgado, José A.; Águeda, V.I.; Uguina, M.Á.; Sotelo, J.L.; Brea, Pablo

doi:10.1007/s10450-015-9654-z

Cited by 22 publications

(28 citation statements)

References 32 publications

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“…This adsorbent has been chosen as it shows good performance in adsorbing N 2 despite the relatively poor adsorption affinity of the gas in general [23,24]. This adsorbent has been chosen as it shows good performance in adsorbing N 2 despite the relatively poor adsorption affinity of the gas in general [23,24].…”

Section: Resultsmentioning

confidence: 99%

“…The amount of CO 2 adsorbed by each kg of adsorbent has been calculated with the help of the model parameters given in Table I for the chosen adsorbate-adsorbent combinations. CaX zeolite follows the dual Langmuir isotherm for the adsorption of nitrogen and methane [24]. For the adsorption of other gases (like, N 2 and CH 4 ) CaX zeolite has been chosen as the adsorbent.…”

Section: Thermodynamic Modelmentioning

confidence: 99%

“…Several works have been reported on the performance of Hydrogen separation using PSA M. Mondal and A. Datta different adsorbents in recent times [18][19][20][21][22][23][24]. Several works have been reported on the performance of Hydrogen separation using PSA M. Mondal and A. Datta different adsorbents in recent times [18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…The results revealed that all the three materials are good adsorbers of carbon dioxide. Delgado et al [24] compared the performance of CaX and 5A zeolite adsorbents for hydrogen recovery from H 2 , N 2 , CO and CH 4 gas mixture through PSASIM simulation tool. Saha et al [21] obtained adsorption isotherms on two types of nano-porous activated carbon adsorbents (ACF A-20 and Maxsorb III) for carbon dioxide adsorption using volumetric technique and fitted them to different types of isotherm equations.…”

Section: Introductionmentioning

confidence: 99%

“…Fitting parameters of dual Langmuir isotherm for N 2 and CH 4 adsorption on CaX zeolite[24].Table III. Density and bed porosity of different adsorbents.…”

mentioning

confidence: 99%

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Energy transfer in hydrogen separation from syngas using pressure swing adsorption (PSA) process: a thermodynamic model

Mondal

Datta

2016

Int. J. Energy Res.

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Summary This paper presents the thermodynamic modeling of a pressure swing adsorption (PSA) unit for hydrogen separation from a syngas mixture, which can be obtained from biomass gasification. Two different types of activated carbon (A‐20 and Maxsorb III) have been considered for CO2 adsorption from the gas and the variations in the adsorber bed size and energy transfer have been analyzed at different adsorption pressure, ranging from 2000 to 4000 kPa, and at 320 K temperature. CaX Zeolite has been utilized for the adsorption of other constituents (N2 and CH4) in the gas mixture. The bed size decreases while the energy consumption in the process increases with the increase in adsorption pressure. The decrease in bed size is found to be 48%–50%, and the energy consumption increases by 31%–32% over the range of adsorption pressure and for the adsorbent materials considered. Allowing the minor components (N2 and CH4) with hydrogen (without separating them from the gas) drastically reduces the bed size and energy consumption. This reduction of bed size is found to be around 70% for A‐20 and 85% for Maxsorb III, and the decrease in power consumption is around 25% for either of the adsorbents. Maxsorb III has been found to be a better CO2 adsorbent with higher working bed capacity than A‐20. The analysis has also been extended to 300 K bed temperature for Maxsorb III adsorbent to identify the effect of bed temperature on the adsorption process. At this temperature, a decrease of around 30% in column volume and a hike of 27%–35% in the energy consumption have been observed in the aforesaid adsorption pressure range. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Section: Thermodynamic Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Fitting parameters of dual Langmuir isotherm for N 2 and CH 4 adsorption on CaX zeolite[24].Table III. Density and bed porosity of different adsorbents.…”

mentioning

confidence: 99%

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Energy transfer in hydrogen separation from syngas using pressure swing adsorption (PSA) process: a thermodynamic model

Mondal

Datta

2016

Int. J. Energy Res.

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Optimization of hydrogen purification from biomass‐derived syngas via water gas shift reaction integrated with vacuum pressure swing adsorption for energy storage

Chen,

Chein

et al. 2024

Energy Storage

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Biomass is one of the promising sources to produce green H2, which can be considered an energy storage medium. To produce high‐purity H2 from biomass‐derived syngas, this study implemented a two‐stage H2 purification process. In the first stage, a water gas shift reaction (WGSR) was performed to enhance the H2 concentration in the syngas. The Taguchi method was employed to analyze the influence of the operating conditions and maximize the H2 concentration in the water gas shift reaction product. The results suggested that reaction temperature is a more dominant factor for enhancing the H2 concentration than the molar steam/carbon monoxide (S/CO) ratio. In the second stage, vacuum pressure swing adsorption was employed to obtain the high‐concentration H2 using the product from the water gas shift reaction having the optimum H2 concentration. Using the adsorption pressure as the primary parameter, it was found that high H2 purity and recovery could be obtained from vacuum pressure swing adsorption operated at low adsorption pressures. Based on this study's results, the vacuum pressure swing adsorption unit's best outcome occurs during an adsorption pressure of 2 kg·cm−2 and a flow rate of 17 L·min−1. Under these conditions, 93.61% H2 purity, 31.63% H2 recovery, 4.86 mol H2·(kgads·h)−1 productivity, and 448.14 kJ·(kg H2)−1 energy consumption are obtained.

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Characteristics of activated carbon in elevated-temperature pressure swing adsorption desulfurization

et al. 2019

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Hydrogen recovery from off-gases with nitrogen-rich impurity by pressure swing adsorption using CaX and 5A zeolites

Cited by 22 publications

References 32 publications

Energy transfer in hydrogen separation from syngas using pressure swing adsorption (PSA) process: a thermodynamic model

Energy transfer in hydrogen separation from syngas using pressure swing adsorption (PSA) process: a thermodynamic model

Optimization of hydrogen purification from biomass‐derived syngas via water gas shift reaction integrated with vacuum pressure swing adsorption for energy storage

Characteristics of activated carbon in elevated-temperature pressure swing adsorption desulfurization

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