摘要
利用FACTSAGE软件定量计算麦秆、玉米秆和稻草3 种生物质燃料在燃烧过程中PM2.5的排放情况,探究反应过程中氧含量、温度等对燃烧尾气中HF、HC1、S0x和NO排放的影响,从而确定适合生物质燃料燃烧的条件.结果表明：由于秸秆F、C1含量较多,燃烧反应后会产生大量HC1和HF.为了控制生物质燃料中F、C1化合物的产生,燃烧温度应控制在1 000-1 100℃;氧含量应选择正常空气氧含量,氧含量过低,燃烧尾气中会生成较多的氨及氢氧化物;氧含量过高,则会生成较多的硫氧化物和氮氧化物.
Emissions of PM2.5from burning of wheat straw,corn stalks and rice straw were quantified with the aid of FACTSAGE and effects of oxygen supply and temperature during the combustion process on emissions of HF,HCl,SOx and NO with smoke were explored in an attempt to define proper conditions for burning of bio-materials. Results show that as crop straw contains much F and Cl,burning of the material generates a large amount of HF and HCl. In order to control the generation of F / Cl compounds from burning of bio-materials,temperature of the combustion should be controlled at1 000-1 100 ℃,and oxygen supply should be from natural air. When oxygen supply is too low,more ammonia and hydroxides will be generated and emitted with the tail gas,while it is too high,more sulfur oxides and nitrogen oxides will,causing formation of secondary aerosol,PM2.5and then environment pollution.
出处
《生态与农村环境学报》
CAS
CSCD
北大核心
2016年第5期842-846,共5页
Journal of Ecology and Rural Environment
基金
国家科技支撑计划(2013BAC13B01-06-01)
湖北省科技支撑计划(2015BCA303)
关键词
气体排放
高温
氟化物
氯化物
生物质
燃烧
gas emission
high temperature
F compound
Cl compound
bio-material
burning
