生活垃圾热解可燃气内燃机发电机尾气颗粒物特性及改进净化  

Characteristics and Improved Purification of the Tail Gas Particulates from Internal Combustion Engine Power Generator for Domestic Waste Pyrolysis Gas

作　　者：严鑫 李玮 杨文军 YAN Xin;LI Wei;YANG Wenjun(Zhongcheng Green Construction Technology Co.Ltd.,Hangzhou Zhejiang 310000;Shenyang Aerospace University,Shenyang Liaoning 110136)

机构地区：[1]中城绿建科技有限公司,浙江杭州310000 [2]沈阳航空航天大学,辽宁沈阳110136

出　　处：《环境卫生工程》2023年第6期28-34,共7页Environmental Sanitation Engineering

基　　金：国家重点研发计划项目(2018YFD1100602)。

摘　　要：因发电效率高、二口恶英排放低等优势,生活垃圾热解可燃气发电成为了极具推广价值的固体能源装备技术。但是,生活垃圾热解可燃气内燃机发电机尾气颗粒物会导致自动停机、发电不稳定、排放不达标等问题。本研究针对发电机尾气颗粒物进行了组分特性和影响因素分析,结果表明白色粉末以SiO_(2)为主,其主要来源为热解可燃气中的焦油和硅氧烷。为改善发电机尾气使其能够稳定持续达标排放,在发电装置中新增了多级捕焦装置和高温陶瓷除尘器,实现了燃气中焦油含量低于50 mg/m^(3),排放烟气中粉尘量低于5 mg/m^(3),达到了DB 11/1056—2013固定式内燃机大气污染物排放标准的指标要求。Due to the advantages in high efficiency of power generation and low emission of dioxin,power generation with domestic waste pyrolysis gas has become a solid energy equipment technology with great popularization value.However,the tail gas particulates that from internal combustion engine power generator for domestic waste pyrolysis gas caused the problems such as automatic shutdown,unstable power generation and substandard emission.The composition characteristics and influencing factors of tail gas particulates were analyzed in this study.The results showed that the white powder was mainly composed of SiO_(2),which was largely from the tar and siloxane in pyrolysis gas.In order to improve the power generation tail gas,so that it could steadily and continuously meet the emission standards,multistage tar capture device and high-temperature ceramic dust collector were supplemented in the power generation unit.The tar content in the gas was less than 50 mg/m^(3),and the dust content in the exhaust gas was less than 5 mg/m^(3),which met the index requirements of the DB 11/1056—2013 Emission Standard of Air Pollutants for Stationary Internal Combustion Engines.

关 键 词：生活垃圾 热解可燃气 燃气发电机 尾气颗粒 改进净化 

分 类 号：X799.3[环境科学与工程—环境工程] X701