秸秆成型燃料集中供暖工程温室气体减排效应  

Greenhouse gas emission reduction effect of a straw briquette central heating system

作　　者：冯新新 左涛 孙宁[1] 谢杰 高春雨[1] 毕于运[1] 王亚静[1] FENG Xinxin;ZUO Tao;SUN Ning;XIE Jie;GAO Chunyu;BI Yuyun;WANG Yajing(Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China;Research Center of Information Technology,Beijing Academy of Agriculture and Forestry Sciences/AgChip Science and Technology(Beijing)Co.,Ltd.,Beijing 100097,China;Lintao Xinyuan Environmental Protection Technology Co.,Ltd,Lintao 730500,China)

机构地区：[1]中国农业科学院农业资源与农业区划研究所,北京100081 [2]北京市农林科学院信息技术研究中心/农芯科技(北京)有限责任公司,北京100097 [3]临洮县新源环保科技有限公司,临洮730500

出　　处：《中国生态农业学报（中英文）》2022年第4期702-712,共11页Chinese Journal of Eco-Agriculture

基　　金：国家自然科学基金项目(41771569,41301626)资助。

摘　　要：探究我国秸秆成型燃料集中供暖工程温室气体减排量计算方法,定量估算典型工程温室气体减排量,可为我国秸秆成型燃料集中供暖工程减排量估算提供理论依据与方法支撑。参考IPCC(政府间气候变化专门委员会)《国家温室气体清单指南》、UNFCCC(《联合国气候变化框架公约》)方法学、CDM (清洁发展机制)方法学,以秸秆自然腐解为基准线,建立了秸秆成型燃料集中供暖工程温室气体减排量计量方法。该计量方法包括项目边界、基准线排放、项目排放等方面。结果表明, 2019—2020年一个供暖季甘肃省临洮县5个秸秆成型燃料集中供暖示范工程基准线排放量为1610.08 t CO_(2),项目排放量为104.67 t CO_(2),净减排量为1505.41 t CO_(2),约相当于减少了529.45 t标准煤的CO_(2)排放量。临洮县秸秆成型燃料集中供暖工程每消耗1 t玉米秸秆原料,可减少1.17 t CO_(2)排放。本研究系统构建了基于秸秆自然腐解基准线的秸秆成型燃料集中供暖温室气体减排量计量方法,完善了秸秆成型燃料集中供暖工程温室气体减排估算方法学体系,证明了秸秆成型燃料集中供暖工程具有明显的减排效果。The long-term dependence on coal for heating during winter in northern China has caused serious environmental pollution.In addition, the limitations and non-renewability of fossil fuels have prompted the development of new energy sources for clean heating. Biomass energy resources are a good option because they are abundant, clean, and sustainable. Crop straw is an important agricultural biomass energy resource in China because of its’ high yield, wide distribution, and variety. Extruding straw into briquette fuel can significantly improve its combustion performance. Referring to the Intergovernmental Panel on Climate Change(IPCC), the United Nations Framework Convention on Climate Change(UNFCCC), and the Clean Development Mechanism(CDM) methodology, and through literature research and field surveys, this study constructed a calculation method for greenhouse gas emission reduction in a straw briquette fuel central heating system, with the natural decomposition of straw as the baseline. The calculation method involves four parts: the system boundary, baseline emissions, project emissions, and leakage. The system boundary includes the disposal of waste straw in the absence of the system, the route of transporting waste straw to the straw molding processing plant, the briquetting machine used in the molding process, the boiler used in the central heating process, the route to transport the straw briquette to the heating point, and the place where the straw briquette is used for heating. Baseline emissions are the sum of greenhouse gas emissions from the natural decomposition of straw, emissions from alternative coal heating, and energy consumption emissions from chemical fertilizer production replaced by returning ash generated by straw to the field. Total emissions of the system are the sum of fossil fuel consumption emissions from engineering transportation activities, power consumption emissions from straw molding, and emissions from utilizing straw molding fuel combustion and heating. The system leakage rate i

关 键 词：秸秆成型燃料 集中供暖工程 温室气体减排 基准线排放 估算方法 参数体系 

分 类 号：S216.2[农业科学—农业机械化工程]