宁夏大学学报（自然科学版）2024，Vol.45Issue(3)：282-289,8.
煤气化细渣残炭与煤的掺烧及其气体释放特性
Co-combustion Characteristic and Gas Emission Characteristic of Entrained Flow Gasification Fine Slag Residual Carbon and Coal
摘要
Abstract
In order to utilize the large amount of accumulated solid waste coal gasification fine slag(FS)in a resourceful and large-scale manner,this study uses froth flotation to enrich the residual carbon(RC)in FS.The characteristics of RC combustion alone and its co-combustion with bituminous coal are investigated using a thermogravimetric analyzer.By comparing experimental results with kinetic calculations,the ignition perfor-mance,burnout performance,combustion stability,and comprehensive combustion characteristics of particles during single and co-combustion processes are elucidated.Additionally,the emission patterns of CO,CO2,and NO2 during the combustion of RC alone and in combination with coal are explored using a mass spectrometer.The results show that the flotation process effectively reduces the aluminosilicate polymerization degree in FS,enriching RC.The addition of bituminous coal significantly enhances the combustion reactivity of RC during co-combustion.Different mass ratios of RC can effectively reduce pollutant emissions during the combustion of bituminous coal,with an 80% RC mass fraction resulting in the lowest NO2 emissions.关键词
煤气化细渣/泡沫浮选/共燃烧特性/气体释放Key words
fine slag/froth flotation/co-combustion characteristics/gas release分类
化学化工引用本文复制引用
折成林,白永辉,于广锁,刘夏青,马利,方鹏程,李芳..煤气化细渣残炭与煤的掺烧及其气体释放特性[J].宁夏大学学报（自然科学版）,2024,45(3):282-289,8.基金项目
国家自然科学基金资助项目(22168032) （22168032）
宁东能源化工基地重点基金资助项目(2023NDKJXMLX022) （2023NDKJXMLX022）
