我国县域生活垃圾制备固体回收燃料工艺的技术经济性分析  

Technical-economic Analysis of SRF Preparation Processes from Municipal Solid Waste in County Area of China

作　　者：齐佳楠 周硕 宁庆 王欢[1] 李兵[1] 刘海威[1] QI Jianan;ZHOU Shuo;NING Qing;WANG Huan;LI Bing;LIU Haiwei(China ENFI Engineering Group,Beijing 100038;Fiber Composite Materials Recycling Branch,China Materials Recycling Association,Beijing 100037;ENFI City Solid Waste(Xiaogan)Co.Ltd.,Xiaogan Hubei 432012)

机构地区：[1]中国恩菲工程技术有限公司,北京100038 [2]中国物资再生协会纤维复合材料再生分会,北京100037 [3]恩菲城市固废(孝感)有限公司,湖北孝感432012

出　　处：《环境卫生工程》2025年第1期23-31,共9页Environmental Sanitation Engineering

基　　金：国家重点研发计划项目(2023YFC3902804)。

摘　　要：为考察我国县域生活垃圾(MSW)制备固体回收燃料(Solid Recovered Fuel,SRF)进行焚烧发电的技术经济性,基于生活垃圾制备SRF项目的特点,采用投资额、内部收益率、经济运输半径和非补贴收入占比作为评价指标,对机械分选、生物干化、高压挤压-生物干化3种短流程SRF制备工艺进行技术经济性分析,并将SRF焚烧发电与生活垃圾直接焚烧发电进行对比。将4项技术经济型指标相结合,提出综合技术经济性指数CTE全面衡量3种SRF制备工艺的技术经济性。结果表明:考察的3种SRF制备工艺均可增加生活垃圾焚烧的发电收入,降低生活垃圾的运输费用,提升生活垃圾焚烧处理的净收益。SRF制备工艺的净收益(以MSW计)为19.1~35.9元/t,显著高于生活垃圾直接焚烧的4.8元/t。在目前平均生活垃圾处置补贴70.0元/t的条件下,生物干化工艺的经济运输半径最大,达到90.9 km,相对于生活垃圾焚烧提升了71.0%,显著扩大了垃圾焚烧电厂的服务范围,有利于提高较为偏远地区生活垃圾的焚烧处理率,取得更好的环境效益和经济效益。3种SRF制备工艺的综合技术经济性排序为生物干化>高压挤压-生物干化>机械分选。To investigate the techno-economic performance of solid recovered fuel(SRF)production from municipal solid waste(MSW)in China’s county regions,three short-flow SRF preparation processes,namely mechanical sorting,bio-drying,high pressure extrusion and bio-drying,were examined.Considering the characteristics of SRF production,the techno-economic performance of these processes was assessed in terms of investment,internal rate of return,economic transportation radius,and non-subsidized income proportion.Techno-economic analysis of MSW incineration was also carried out for comparison.Additionally,by integrating the four techno-economic indicators above,a comprehensive techno-economic index(CTE)was developed to evaluate the overall techno-economic performance of three SRF preparation processes.The result indicated that the production of SRF could increase power generation revenue,reduce transportation costs,and increase the net income of MSW incineration.The net income(in tons MSW)of the SRF preparation process ranged from 19.1 to 35.9 yuan,which was considerably higher than the 4.8 yuan for MSW incineration.When the MSW disposal allowance was 70.0 yuan/t,the biological drying process had the largest economic transportation radius of 90.9 km,which was 71.0%greater than that of MSW incineration.This significantly expanded the service scope of incineration plants,and was benefit to improve the MSW incineration rate in remote areas,resulting better environmental and economic benefits.Among the three SRF preparation processes,the bio-drying process exhibits the most favorable comprehensive techno-economic performance,followed by high pressure extrusion and bio-drying,and mechanical sorting.

关 键 词：固体回收燃料 生活垃圾 技术经济性分析 焚烧 

分 类 号：X799.3[环境科学与工程—环境工程]