水泥窑协同处置分类生活垃圾生命周期成本及边际减排成本分析  

作　　者：梁学敏 黄麟 景紫怡 张岳玲 

机构地区：[1]华北电力大学环境科学与工程学院资源环境系统优化教育部重点实验室,北京102206

出　　处：《中国水泥》2024年第8期31-38,共8页China Cement

基　　金：中国工程院咨询项目(2016-ZD-14);总理基金—大气重污染成因与治理攻关项目(DQGG0209-13)。

摘　　要：水泥窑协同处置分类生活垃圾是对水泥生产进行原料替代和燃料替代的有效方法,但目前缺乏对其经济可行性的评估。本文采用情景设置法,对协同处置和常规熟料生产和垃圾处置的生命周期成本进行比较分析,并以协同处置的能源节省量和污染物减排量为基准,研究了CO_(2)、SO_(2)、NO_(x)、CH_(4)、CO等五种气态污染物的边际减排成本。结果表明:在水泥窑中处置分类生活垃圾的生命周期成本最低;与常规熟料生产相比,生命周期成本下降了2.16%。按2020年我国水泥产量23.9亿吨,技术推广比例3.5%计算,可节约成本7.36亿元。协同处置五种污染物的边际减排成本都为负值,到2035年,若能实现35%的技术推广比例,可为企业带来2.2E+10元的经济效益。Cement kiln co-processing of classified domestic waste is an effective method of alternative raw materials and fuels for cement production,yet there exists a lack of assessment of its economic feasibility.A comparative analysis of the life cycle costs of co-processing,conventional clinker production,and waste disposal was presented using the scenario setting method.The marginal abatement costs of five gaseous pollutants,including CO_(2),SO_(2),NO_(x),CH_(4) and CO,were studied based on the energy savings and pollutant reductions from co-processing.The results showed that the disposal of classified domestic waste in cement kilns had the lowest life cycle cost.Compared to conventional clinker production,the life cycle cost was reduced by 2.16%.Based on the cement output of 2.39 billion tons and the technology promotion ratio of 3.5%in 2020 in China,the cost savings could reach 736 million yuan.The marginal abatement costs of coprocessing of five pollutants were negative.By 2035,if a 35%technology promotion ratio can be achieved,it can bring an economic benefit of 2.2E+10 yuan to enterprises.

关 键 词：水泥 协同处置 分类生活垃圾 生命周期成本 边际减排成本 

分 类 号：TQ172.632.5[化学工程—水泥工业] TM307.2[化学工程—硅酸盐工业]