| 摘要 |
<p>The invention relates to a process for obtaining biogas by the biomass fermentation, and to an installation for applying the process. According to the invention, the process consists in the anaerobic fermentation of biomass refuse, in suspension, at a temperature of maximum 55...60A C, for maximum 120 days, and pH ranging between 7.2 and 8.2, followed by the filtration of the obtained biogas, through cuttings, for the sulphuretted hydrogen retention, biogas concentration and washing, for carbon dioxide retention, the desired product being obtained, with a methane concentration of over 80%. According to the invention, the installation comprises: a biomass deposit (1), a mill/cutter (2), a tank (3) for preparing the biomass suspension, two fermentation reactors (5), provided with a thermally regulated heating system (17), a tank (6) for the pH correction agent, a filter (7) for retaining the sulphuretted hydrogen, a vessel (8) for retaining the carbon dioxide and a filter for the compost (12).</p> |
