Solar enriched methane production by steam reforming process: Reactor design |
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| Authors: | Marcello De Falco Vincenzo Piemonte |
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| Affiliation: | a Faculty of Engineering, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy
b Department of Chemical Engineering, Materials and Environment, University of Rome “La Sapienza”, via Eudossiana 18, 00184 Rome, Italy |
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| Abstract: | A novel hybrid plant for a mixture of methane and hydrogen (enriched methane) production from a steam reforming reactor whose heat duty is supplied by a molten salt stream heated up by a concentrating solar power (CSP) plant developed by ENEA is here presented. By this way, a hydrogen stream, mixed with natural gas, is produced from solar energy by a consolidated production method as the steam reforming process and by a pre-commercial technology as molten salts parabolic mirrors solar plant. After the hydrogen production plant, the residual heat stored in molten salt stream is used to produce electricity and the plant is co-generative (hydrogen + electricity).The heat-exchanger-shaped reactor is dimensioned by a design tool developed in MatLab environment. A reactor 3.5 m long and with a diameter of 2″ is the most efficient in terms of methane conversion (14.8%) and catalyst efficiency (4.7 Nm3/h of hydrogen produced per kgcat). |
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| Keywords: | Enriched methane Solar energy Hydrogen production CSP plant Molten salt |
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