城市生活垃圾筛上物的热解研究及实验  

Pyrolysis on Screen Residue of Municipal Household Waste

作　　者：张于峰[1] 邓娜[1] 张书廷[1] 李新国[2] 周欣[2] 王艳[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072 [2]天津大学机械工程学院,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2005年第6期556-560,共5页Journal of Tianjin University：Science and Technology

基　　金：国家自然科学基金资助项目(50378062);天津市科委重大攻关项目(013109611);南开大学天津大学联合研究资助项目(TD200111)

摘　　要：对城市生活垃圾场筛上物垃圾进行热解实验,研究特定垃圾的热解过程及其规律.实验采用热解终温为550℃和700℃,热解物料为原始筛上物垃圾和加入热解残炭的筛上物垃圾,实验设备为间歇运行的固定床式热解炉.实验结果表明:热解终温700℃与550℃相比,热解产物中固体和液体的产率降低,瞬时产气速率和气体产率均升高;瞬时产气速率曲线与瞬时耗电量曲线形状一致,迟滞时间为5～10min;物料底部热解产物焦炭存在与否对热解得到的固液气产率、产气特性和能量消耗等方面几乎没有影响.Laboratory-made batch biomass pyrolysis apparatus was used to study the pyrolysis behavior of screen residue of municipal household waste. Three experimental schemes were applied to making out how different temperatures of 550 ℃ and 700 ℃ influenced the pyrolysis product, and whether the existence of pyrolysis residue would change experimental results. The results indicate that, at 700 ℃, both gas yield and instantaneous rate of gas yield are higher than those at 550 ℃. The instantaneous rate curve of gas yield has a good agreement with the instantaneous power consumption curve, but has a time lag of 5—10 min. Whether pyrolysis residue exists or not hardly influences solid, liquid and gas yield, gas characteristics and energy consumption etc.

关 键 词：城市生活垃圾 垃圾热解 垃圾筛上物 固定床反应器 

分 类 号：X7[环境科学与工程—环境工程]