《2.沼气1.ppt

Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 氨基酸脱羧基 胺 醛 有机酸 胺氧化酶 醛脱氢酶 H2O Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 2.2 沼气厌氧发酵 （2）产氢产乙酸菌群 第一阶段水解产生的有机酸、醇类，除乙酸、甲酸、甲醇外均不能被产甲烷菌利用，必须由产氢产乙酸菌将其转化为乙酸、氢和二氧化碳，主要反应过程有 丙酸 CH3CH2COOH+2H2O ? CH3COOH+CO2+3H2 丁酸 CH3CH2CH2COOH+2H2O ? 2CH3COOH+2H2 乙醇 CH3CH2OH+2H2O ? CH3COOH+CO2+2H2 乳酸 CH3CHOHCOOH+H2O ? CH3COOH+CO2+H2 76.1 kJ/mol 48.1 19.2 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 2.2 沼气厌氧发酵 产氢产乙酸菌与产甲烷菌的共营关系 产氢产乙酸菌为产甲烷菌提供底物； 产甲烷菌为产氢产乙酸菌消除产物抑制。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 能源发展概况 消费总量：总体、分类 消费结构：地域、产业、种类 供应结构：交易、种类 资源分布：分类地域 两个重要概念：对外依存度、储采比 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 能源与环境危机 能源危机：化石能源有限、地域分布不均 环境危机：能源开采、运输、利用过程造成污染 能源发展的出路——可再生能源 太阳能：发电、制氢、民用 风能：发电 水能：发电 地热能：发电、工业干燥、养殖、旅游 潮汐能：发电 波浪能：发电 生物质能：燃料——沼气、乙醇、制氢、柴油…… Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 2.1 沼气基本概况 2.2 沼气的厌氧发酵机理 2.3 典型农村户用沼气制备 2.5 沼气发酵工艺参数介绍 2.6 沼气发酵工艺运行管理 2.厌氧过程与沼气技术 2.4 大中型沼气制备工艺 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 单糖 六碳糖：葡萄糖、果糖、半乳糖…… 五碳糖：木糖、核糖…… 多糖 二糖 淀粉、纤维素、半纤维素…… 蔗糖、麦芽糖、纤维二糖…… 生化：糖 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 蔗糖 纤维二糖 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2