热力发电2024，Vol.53Issue(1)：46-52,7.DOI:10.19666/j.rlfd.202310156
新疆高碱高氯煤燃烧条件下细颗粒物生成特性研究
Study on the formation characteristics of fine particulate matter under the combustion condition of high-alkali and high-chlorine coal in Xinjiang
摘要
Abstract
In order to compare the particle formation characteristics of typical high-alkali and high-chlorine Xinjiang coal under combustion conditions,a three-stage high temperature drop tube furnace was used to carry out the combustion experiment of Zhundong coal(ZD)and Shaerhu coal(SEH)in air atmosphere.The characteristics of particulate matter after combustion were analyzed.Particulate matters were collected by Dekati low pressure impactor+(DLPI+)and the mass-based particle size distribution,elemental compositions and morphology were discussed.The results showed that the particulate matter produced by the combustion of the two coal samples presents a double-peaked model.The fine particle yield of SEH is significantly higher than that of ZD.The main components of sub-micron particles were Na and Cl.The Cl in PM10 accounts for 11.8％and 28.9％of the Cl content in ZD and SEH raw coal,and Na accounts for 2.66％and 7.53％of the Na content in ZD and SEH coal ash.High levels of alkali metals and Cl promoted the formation of fine particles.A large amount of Cl in SEH raw coal migrated into particles and contributed greatly to the formation of sub-micron particles.关键词
高氯煤/高碱煤/颗粒物/碱金属/煤燃烧Key words
high-chlorine coal/high-alkali coal/particulate matter/alkali metal/coal combustion引用本文复制引用
许猛,马金荣,王建江,魏博,陈丽娟,安田田..新疆高碱高氯煤燃烧条件下细颗粒物生成特性研究[J].热力发电,2024,53(1):46-52,7.基金项目
新疆维吾尔自治区煤的灰化学理论基础及应用创新团队(2023D14010) （2023D14010）
新疆维吾尔自治区天池英才-青年博士项目(51052300571)Science & Technology Department of Xinjiang Uygur Autonomous Region Tianshan Innovation Team(2023D14010) （51052300571）
Xinjiang Uygur Autonomous Region Tianchi Talents-Young Doctor Program(51052300571) （51052300571）
