Purification of hydrogen from hydrocarbons by adsorption for vehicles application

Swesi, Yousef; Kerleau, Philippe; Pitault, Isabelle; Heurtaux, F.; Ronze, Didier

doi:10.1016/j.seppur.2006.09.023

Cited by 8 publications

(12 citation statements)

References 23 publications

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“…Consequently, the process of hydrogen production from hydrocarbon sources of different origin is prospective to replace the water electrolysis based methods at a number of chemical plants, where the purity of hydrogen is not crucial. In principle, the purity of hydrogen can be improved by using membrane or adsorption technologies [23,24]. Hydrogen produced via such a process was named blue hydrogen [25].…”

Section: Introductionmentioning

confidence: 99%

Selected Aspects of Hydrogen Production via Catalytic Decomposition of Hydrocarbons

et al. 2021

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Owing to the high hydrogen content, hydrocarbons are considered as an alternative source for hydrogen energy purposes. Complete decomposition of hydrocarbons results in the formation of gaseous hydrogen and solid carbonaceous by-product. The process is complicated by the methane formation reaction when the released hydrogen interacts with the formed carbon deposits. The present study is focused on the effects of the reaction mixture composition. Variations in the inlet hydrogen and methane concentrations were found to influence the carbon product’s morphology and the hydrogen production efficiency. The catalyst containing NiO (82 wt%), CuO (13 wt%), and Al2O3 (5 wt%) was prepared via a mechanochemical activating procedure. Kinetics of the catalytic process of hydrocarbons decomposition was studied using a reactor equipped with McBain balances. The effects of the process parameters were explored in a tubular quartz reactor with chromatographic analysis of the outlet gaseous products. In the latter case, the catalyst was loaded piecemeal. The texture and morphology of the produced carbon deposits were investigated by nitrogen adsorption and electron microscopy techniques.

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Section: Introductionmentioning

confidence: 99%

Selected Aspects of Hydrogen Production via Catalytic Decomposition of Hydrocarbons

et al. 2021

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“…The accuracy of such a model is highly dependent on many parameters that are specific to the system being described and the conditions of interest. In a commonly used approach to determine the values of these parameters, the adsorption equilibrium is usually measured independently by a gravimetric or volumetric method, whereas the relevant transport phenomena are studied through the use of fixed-bed breakthrough experiments. − Although these phenomena are a central component of adsorption-based processes and a good description of the breakthrough experiments is a prerequisite for the modeling of full pressure-swing adsorption (PSA) cycles, cyclic adsorption processes involve a wide range of conditions in their different steps. For the developed models for process design and optimization to be used with confidence, they must be tested rigorously.…”

Section: Introductionmentioning

confidence: 99%

CO₂ Capture from a Binary CO₂/N₂ and a Ternary CO₂/N₂/H₂ Mixture by PSA: Experiments and Predictions

Marx

Joss

Hefti

et al. 2015

Ind. Eng. Chem. Res.

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The results of pressure-swing adsorption experiments performed in a two-column setup are presented, as a way of validating a model developed to design and optimize cyclic adsorption processes. The experiments were conducted using a commercial activated carbon as the sorbent and an adsorption pressure of 20 bar. Two feed mixture compositions were studied: a binary CO 2 /N 2 mixture representative of a flue gas and a ternary CO 2 /N 2 /H 2 mixture representative of the product stream of airblown autothermal reformers. During the experiments, the temperature was measured at five locations along the center of each column, along with the pressure, feed flow rate, product composition, and high-pressure product flow rate. A one-dimensional, nonisothermal, nonequilibrium model was used to simulate the experiments in a fully predictive manner. This model was previously validated in breakthrough experiments as well as PSA experiments using a binary CO 2 /H 2 mixture. A thorough analysis of the experimental results and comparison with the simulation results showed that the model is fully capable of handling rather different feed compositions while still predicting satisfactorily the temperatures within the column, the product composition, and the overall process performance for a variety of process configurations and operating conditions.

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“…Swesi et al [10] studied purification of hydrogen from hydrocarbons by adsorption for vehicle applications. According to their results the investigated activated carbon presents high adsorption capacities and weak pressure drops compared to the other adsorbents; but its dynamic desorption is very slow.…”

Section: Introductionmentioning

confidence: 99%

Surface and Hydrogen Sorption Characteristics of Various Activated Carbons Developed from Rat Coal Mine (Zonguldak) and Anthracite

Toprak

Kopaç

2011

Chinese Journal of Chemical Engineering

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Activated carbon samples were developed from coal samples obtained from a coal mine, rat (Zonguldak, Turkey) and anthracite (Siberia, Russia), applying pyrolysis in a temperature range of 600-900 °C under N 2 flow, and activation using chemical agents such as KOH, NH 4 Cl, ZnCl 2 at 650 °C. Nitrogen adsorption at low temperature (77 K) was used to characterize the activated carbon samples, and their pore structure properties including pore volume, pore diameter and pore size distribution were determined by means of the t-plots and DFT methods. The surface area values were higher for rat coal samples than for anthracite one, and for the rat coal samples treated with KOH + NH 4 Cl + ZnCl 2 at 650 °C [Rat650(2)] there are highest surface area and total pore volume, 315.6 m 2 •g −1 and 0.156 ml•g −1 , respectively. The highest value of the hydrogen sorption capacity was found as 0.71% (by mass) for the rat coal sample obtained by KOH + ZnCl 2 treatment at 650 °C [Rat650(1)].

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Purification of hydrogen from hydrocarbons by adsorption for vehicles application

Cited by 8 publications

References 23 publications

Selected Aspects of Hydrogen Production via Catalytic Decomposition of Hydrocarbons

Selected Aspects of Hydrogen Production via Catalytic Decomposition of Hydrocarbons

CO₂ Capture from a Binary CO₂/N₂ and a Ternary CO₂/N₂/H₂ Mixture by PSA: Experiments and Predictions

Surface and Hydrogen Sorption Characteristics of Various Activated Carbons Developed from Rat Coal Mine (Zonguldak) and Anthracite

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Purification of hydrogen from hydrocarbons by adsorption for vehicles application

Cited by 8 publications

References 23 publications

Selected Aspects of Hydrogen Production via Catalytic Decomposition of Hydrocarbons

Selected Aspects of Hydrogen Production via Catalytic Decomposition of Hydrocarbons

CO2 Capture from a Binary CO2/N2 and a Ternary CO2/N2/H2 Mixture by PSA: Experiments and Predictions

Surface and Hydrogen Sorption Characteristics of Various Activated Carbons Developed from Rat Coal Mine (Zonguldak) and Anthracite

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CO₂ Capture from a Binary CO₂/N₂ and a Ternary CO₂/N₂/H₂ Mixture by PSA: Experiments and Predictions