发明名称 |
Treating filth or waste, comprises subjecting filth or waste to compression to separate into a putrescible fraction and a dry fraction, and subjecting the putrescible fraction to an anaerobic digestion to produce biogas |
摘要 |
<p>The filth or waste (13) treating process comprises subjecting filth or waste to compression to separate (14) into a putrescible fraction in the form of pulp (15) having relative humidity of greater than 50% and into a dry fraction having relative humidity of less than 20%, and subjecting the putrescible fraction to an anaerobic digestion to produce biogas. A part of the dry fraction is converted by an endothermic gasification treatment to produce synthesis gas. The synthesis gas comprises a fuel gas able to be burned by exothermic oxidation. The filth or waste (13) treating process comprises subjecting filth or waste to compression to separate (14) into a putrescible fraction in the form of pulp (15) having relative humidity of greater than 50% and into a dry fraction having relative humidity of less than 20%, and subjecting the putrescible fraction to an anaerobic digestion to produce biogas. A part of the dry fraction is converted by an endothermic gasification treatment to produce synthesis gas. The synthesis gas comprises a fuel gas able to be burned by exothermic oxidation. The endothermic gasification treatment is carried out in a gasification reactor at 700-900[deg] C using many reagents comprising a part of dry fraction (10%) and water vapor. The heat energy for the endothermic gasification treatment is provided outside the reactor by a combustion of biogas and the dry fraction with a quantity of oxidizing comburant gas (6000 m 3>per tonne) in the gasification reactor. The comburant gas is heated by heat exchange between a portion of synthesis gas produced by the endothermic gasification treatment and the comburant gas. The separation into the putrescible fraction and the dry fraction is carried out at a pressure of 720-750 bars in a compression chamber having extrusion orifices through which the putrescible fraction flows. A gas composition including recycling gas is prepared and stored in the reactor. The gas includes a quantity of synthesis gas and a quantity of biogas and natural gas.</p> |
申请公布号 |
FR2927983(A1) |
申请公布日期 |
2009.08.28 |
申请号 |
FR20080000945 |
申请日期 |
2008.02.21 |
申请人 |
DMS |
发明人 |
DUMONS PIERRE |
分类号 |
F23G5/02;B09B3/00;C10J3/14;C12P5/02 |
主分类号 |
F23G5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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