燃料化学学报2017，Vol.45Issue(10)：1164-1171,8.
含V和Ni灰高温流动性的调控研究
Regulation of high temperature flow properties of ash containing V and Ni
摘要
Abstract
Three ashes containing V and Ni were preparation for the study.CaO addition and coal ash blending were chosen for regulation of high temperature flow properties.The regulation mechanism was explored by XRD,SEM-EDX and ternary phase diagram analysis.The results show that karelianite and Ni are main refractory matters in petroleum coke ash at high temperature.CaO addition and coal ash blending decrease the liquid temperatures of ash components except V and Ni,which reduces the ash fusion temperatures.When the contents of V and Ni are fewer than 30％ in ash,CaO can obviously decrease the fusion temperature of ash,and the viscosity-temperature property becomes crystal type.When the contents of V and Ni are higher than 30％ in ash,coal ash blending is an effective method to decrease the fusion temperature.In this condition,5％ of coal ash blending ratio is required,and its viscosity-temperature property is suitable for slag tapping,but when the coal ash proportion is 10％ the viscosity-temperature property of ash becomes crystal type for the precipitation of vanadium-rich spinel,which cannot meet the requirement of slag tapping.关键词
灰/熔融性/黏温特性/调控Key words
ash/fusion property/viscosity-temperature property/regulation分类
化学化工引用本文复制引用
王志刚,白进,孔令学,李怀柱,白宗庆,李文..含V和Ni灰高温流动性的调控研究[J].燃料化学学报,2017,45(10):1164-1171,8.基金项目
The project was supported by the Natural Science Foundation of Shandong Province (ZR2016BL23),the National Natural Science Foundation of China (21706027,21476247 and 21406254) and Science and technology project of Dezhou university (2016kjrc11).山东省自然科学基金(ZR2016BL23),国家自然科学基金(21706027,21476247,21406254)和德州学院科技计划(2016kjrc11)资助 （ZR2016BL23）
