关于农村沼气集中供气工程沼气价格分析  

Analysis on the Price of the Biogas for Rural Centralized Biogas Plant

作　　者：熊飞龙[1] 朱洪光[1] 石惠娴[1] 吴军辉[1] 

机构地区：[1]同济大学现代农业科学与工程研究院生物质能源研究中心,上海200092

出　　处：《中国沼气》2011年第4期16-19,共4页China Biogas

基　　金：国家科技支撑计划项目(2008BADC4B0X);上海市市科委项目(07DZ12050)

摘　　要：与传统的户用沼气池相比,沼气集中供气工程是一种较好的沼气利用方式。然而,沼气价格的确定却是个难点,这关系到沼气工程的后续运行的连续性。本文试图从沼气的热值和项目的财务评价法分别分析沼气集中供气工程三种不同的沼气价格,从而得出按热值对比的价格范围、整个工程的沼气价格和仅后续管理的沼气价格。结果表明,按常规能源(天然气,煤气,LPG和电)的热值和价格换算,沼气(其中甲烷含量为60%)价格范围从每立方1.81元到3.89元不等。而包括初始投资在内的沼气价格则根据产气量的不同(即发酵池的利用率不同),沼气的价格从每立方2.4元到12元不等;不包括初始投资在内的沼气价格则根据产气量的不同,沼气的价格从每立方0.75元到3.6元不等才能保证后续管理的经济性。Centralized biogas plant is a good way to use the biogas compared with household biogas.However,the price decision of biogas is a difficulty,which relates to the sustainable development of the biogas project.This paper attempts to analyze three kinds of price of the biogas based on the calorific value of the biogas and financial investment.It shows that the biogas（methane content 60%） price range from $1.81·m-3 to $3.89·m-3 according to the calorific value comparing with the conventional energy such as natural gas,coal gas,LPG and electricity.If the investment is included,then the biogas price range from $2.4· m-3 to $12·m-3 according to different production scale.If not including the investment,the biogas price from $0.75·m-3 to $3.6·m-3 can ensure the management of the project according to different biogas production.

关 键 词：沼气集中供气工程 价格 热值 财务评价法 

分 类 号：S216.4[农业科学—农业机械化工程]