Vacuum swing adsorption on natural zeolites from tuffs in a prototype plant
| Autor: | Lucia Paciucci, Francesco Petracchini, Flavia Liotta, Enrico Facci, Valerio Paolini |
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| Rok vydání: | 2017 |
| Předmět: |
Chabazite
Environmental Engineering Waste management Renewable Energy Sustainability and the Environment Chemistry 020209 energy General Chemical Engineering chemistry.chemical_element 02 engineering and technology Vacuum swing adsorption Pulp and paper industry Oxygen Methane Flue-gas desulfurization Pressure swing adsorption chemistry.chemical_compound Adsorption Biogas 0202 electrical engineering electronic engineering information engineering Environmental Chemistry Waste Management and Disposal General Environmental Science Water Science and Technology |
| Zdroj: | Environmental Progress & Sustainable Energy. 36:887-894 |
| ISSN: | 1944-7442 |
| DOI: | 10.1002/ep.12530 |
| Popis: | A vacuum swing adsorption (VSA) prototype plant was developed and tested, based on natural zeolites from tuffs containing Chabazite. The regeneration procedure of natural zeolites was optimized, and the operative pressure resulted to be the most important parameter. The VSA prototype was fed for 3 months with a real biogas, produced by agrozootechnical byproducts in an anaerobic baffled reactor (ABR). Biogas composition from ABR was very stable and allowed to deeply investigate the performances of natural zeolites in real biogas conditions. Biogas was desulfurized and dehydrated before the VSA unit. In our experimental conditions, a biomethane average purity > 98% was achieved, with methane recovery > 95%. CO2 concentration was always lower than 0.3%, while oxygen ranged from 0.2 to 1.5%. A light desulfurization effect was also observed. CH4 concentration was |
| Databáze: | OpenAIRE |
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