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Conditioning of hydrogen storage by continuous solar adsorption in activated carbon AX-21 with simultaneous production
Affiliation:1. Université Kasdi Merbah de Ouargla, Faculté des Sciences Appliquées, Département de Génie Mécanique, Ouargla 30 000, Algeria;2. Laboratoire de Génie Energétique et Matériaux, LGEM, Université de Biskra, B.P. 145 R.P, 07000 Biskra, Algeria;1. School of Chemistry, Highfield Campus, University of Southampton, Southampton SO17 1BJ, United Kingdom;2. Department of Engineering, Gillow Avenue, Lancaster University, Bailrigg, Lancaster LA1 4YW, United Kingdom;3. Department of Chemistry and Polymer Science, University of Stellenbosch, Matieland 7600, South Africa;4. Department of Chemical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom;5. Department of Mechanical Engineering, University of Bristol, Bristol BS8 1TR, United Kingdom;1. Université de Lorraine, ENSTIB, 27 Rue Philippe Séguin, CS 60036, 88026 Épinal Cedex, France;2. Institut Jean Lamour, UMR CNRS 7198, ENSTIB, 27 Rue Philippe Séguin, CS 60036, 88026 Épinal Cedex, France;3. Instituto de Carboquímica: Miguel Luesma Castán, 4, Zaragoza E-50018, Spain;1. Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, 4111, Australia;2. Institute of Chemistry, University of Tartu, Ravila 14a, 50411, Tartu, Estonia;1. Lawrence Livermore National Laboratory, Livermore, CA 94550, USA;2. University of Guanajuato, Salamanca, Guanajuato, Mexico;3. Worthington Industries, Pomona, CA 91768, USA;1. Civil Engineering Faculty, K. N. Toosi University of Technology, Tehran, Iran;2. Independent Researcher, Seattle, WA 98121, United States;3. Department of Basic Sciences, Farhangian University, Tehran, Iran;4. State Key Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development, Ministry of Education, Northeast Petroleum University, Daqing 163318, China
Abstract:The capacity of hydrogen storage by solar adsorption in activated carbon AX-21 and filling rate with simultaneous production have been conditioned under a minimum pressure, to nullify the cost of energy supplied to compressor. A gas accumulator tank connected to electrolyzer and continuous adsorption beds have been proposed in the process scheme. Minimum pressure required for the tank at an ambient filling temperature fixed to 25 °C is only 2 bar. While at atmospheric filling pressure the corresponding value of filling temperature is found to be 5 °C. However, a cooling fluid at low temperature for adsorbent bed during the adsorption process will be an efficient way for increasing the stored amount of hydrogen. Almost 4.5 kg of hydrogen can be stored in an adsorbent mass of 200 kg. The adsorption flow rate has been also modelled to be controlled for being adapted to production rate.
Keywords:Hydrogen storage  Adsorption  Simultaneous production  Minimum pressure  Ambient filling temperature  Adsorption flow rate
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