Hydrogen purification from refinery fuel gas by pressure swing adsorption

Malek, Abdul; Farooq, Shamsuzzaman

doi:10.1002/aic.690440906

Cited by 105 publications

(68 citation statements)

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“…Pressure swing adsorption (PSA) has become very prominent in the purification of gases for multiple applications, namely air purification [1,2], hydrogen separation and purification [3][4][5][6], and CO 2 capture [7,8]. Due to their ability to separate carbon dioxide from methane, PSA processes are currently being extended to areas like biogas and landfill gas upgrading.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of CO2 adsorption on cherry stone-based carbons in CO2/CH4 separations

Álvarez-Gutiérrez

Gil

Rubiera

et al. 2017

Chemical Engineering Journal

176

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Most practical applications of solids in industry involve porous materials and adsorption processes. A correct assessment of the equilibrium and kinetics of adsorption is extremely important for the design and operation of adsorption based processes. In our previous studies we focused on the evaluation of the equilibrium of CO 2 /CH 4 adsorption on cherry stone-based carbons. In the present paper the kinetics of adsorption of CO 2 on two cherry stone-based activated carbons (CS-H 2 O and CS-CO 2 ), previously prepared in our laboratory, has been evaluated by means of transient breakthrough experiments at different CO 2 /CH 4 feed concentrations, at atmospheric pressure and 30 ˚C. A commercial activated carbon, Calgon BPL, has also been evaluated for reference purposes. Three models have been applied to estimate the rate parameters during the adsorption of CO 2 on these carbons, pseudo-first, pseudo-second and Avrami´s fractional order kinetic models. Avrami´s model accurately predicted the dynamic CO 2 adsorption performance of the carbons for the different feed gas compositions. To further investigate the mechanism of CO 2 adsorption on CS-H 2 O, CS-CO 2 and Calgon BPL, intra-particle diffusion and Boyd´s film-diffusion models were also evaluated. It was established that mass transfer during the adsorption of CO 2 from CO 2 /CH 4 is a diffusion-based process and that the main diffusion mechanisms involved 2 are intra-particle and film diffusion. At the initial stages of adsorption, film diffusion resistance governed the adsorption rate, whereas intra-particle diffusion resistance was the predominant factor in the following stages of adsorption.

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Section: Introductionmentioning

confidence: 99%

Kinetics of CO2 adsorption on cherry stone-based carbons in CO2/CH4 separations

Álvarez-Gutiérrez

Gil

Rubiera

et al. 2017

Chemical Engineering Journal

176

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“…Over the years it has been demonstrated that PSA technology can be used in a large variety of applications: hydrogen purification [58][59][60][61][62][63][64][65][66][67][68][69][70][71][72], air separation [57,[73][74][75][76][77][78][79][80], OBOGS (on-board gas generation system) [81], CO 2 removal [82][83][84], noble gases (He, Xe, Ar) purification [85][86][87], CH 4 upgrading [31,34,37,40,42,[88][89][90][91][92][93][94][95][96], n-iso paraffin separation [5,[97][98][99]…”

Section: Introductionmentioning

confidence: 99%

Advances in Pressure Swing Adsorption for Gas Separation

Grande

2012

ISRN Chemical Engineering

186

108

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Pressure swing adsorption (PSA) is a well-established gas separation technique in air separation, gas drying, and hydrogen purification separation. Recently, PSA technology has been applied in other areas like methane purification from natural and biogas and has a tremendous potential to expand its utilization. It is known that the adsorbent material employed in a PSA process is extremely important in defining its properties, but it has also been demonstrated that process engineering can improve the performance of PSA units significantly. This paper aims to provide an overview of the fundamentals of PSA process while focusing specifically on different innovative engineering approaches that contributed to continuous improvement of PSA performance.

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“…In use solid adsorbents as high surface area materials formed into pellets (spheres, tablets, cylinders, etc. ), or are in finely divided form [9,10].…”

Section: Introductionmentioning

confidence: 99%

“…In use solid adsorbents as high surface area materials formed into pellets (spheres, tablets, cylinders, etc. ), or are in finely divided form [9,10].In this connection, the production and consumption of the carbon materials has steadily increased. In particular, the global consumption of carbon materials is about 1.1 million tons per year and continues to grow at 9% per year [11].…”

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confidence: 99%

Development and Production of Granular Carbon Sorbents for Sorption of Toxic Gases

Azat

et al. 2017

IJBSBE

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Submit Manuscript | http://medcraveonline.com IntroductionAtmosphere -a system that plays a vital role in many natural processes, such as the formation of the global climate, the composition of the chemical components of the oceans and seas. The penetration of the earth's surface solar radiation and heat the delay in the earthly space, depends on the gas composition of the atmosphere [1]. The problem of air pollution -one of the greatest global challenges faced by humanity. Risk of air pollution -not only in the fact that clean air fall harmful substances harmful to living organisms, but also causes contamination of the Earth's climate change [2,3]. Air pollution (atmosphere) due to human activities has led to the fact that over the past 200 years, the concentration of carbon dioxide has increased by almost 30%. Nevertheless, humanity continues to burn fossil fuels and destroying forests [4,5]. The process is too colossal, that leads to global environmental problems. Air pollution occurs as a result of other human activities. Fuel combustion in thermal power plants is accompanied by the release of sulfur dioxide. With car exhaust gases emitted into the atmosphere of nitrogen oxides. When incomplete combustion carbon monoxide is formed [6,7].At the present stage, for the majority of industrial cleaning and suction air emissions of harmful substances is one of the basic measures to protect the air basin. A feature of most industrial emissions is to have them in addition to solid and liquid particles (dust, fumes and mists) a large amount of harmful gaseous components. Clean gas flows from such impurities and requires specific equipment corresponding theoretical knowledge for the development of gas purification technology [8]. Among the methods of neutralization of industrial emissions increasingly becomes important adsorption way to almost completely remove the impurities from gas streams. In use solid adsorbents as high surface area materials formed into pellets (spheres, tablets, cylinders, etc.), or are in finely divided form [9,10].In this connection, the production and consumption of the carbon materials has steadily increased. In particular, the global consumption of carbon materials is about 1.1 million tons per year and continues to grow at 9% per year [11]. Thus a major amount of activated carbon (80-85%) is produced from non-renewable resources. Large range of carbon materials obtained on the basis of large-tonnage waste of chemical and mechanical processing of wood: sawdust, bark, logging waste and technical lignins [12,13]. In the laboratories of the Institute of Combustion Problems carried out work on the production of porous carbon materials from waste materials rostitelnogo. Such as rice hulls, walnut shells, apricot seeds, which are renewable natural materials [14,15]. But it is not carried out work on the development of producing granular sorbents. In this regard, the work order is possible to obtain by extrusion the granular sorbent and determining the physicochemical properties of the pellets. Е...

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Hydrogen purification from refinery fuel gas by pressure swing adsorption

Cited by 105 publications

References 4 publications

Kinetics of CO2 adsorption on cherry stone-based carbons in CO2/CH4 separations

Kinetics of CO2 adsorption on cherry stone-based carbons in CO2/CH4 separations

Advances in Pressure Swing Adsorption for Gas Separation

Development and Production of Granular Carbon Sorbents for Sorption of Toxic Gases

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