灰分化学组成对熔融特性和黏度的影响  

Effect of chemical composition of the ash on melting properties and viscosity

作　　者：贾慧杰 雷倩芬 

机构地区：[1]阳煤化工集团公司,山西太原030006

出　　处：《山西化工》2017年第4期60-63,共4页Shanxi Chemical Industry

基　　金：教育部博士点基金资助项目(20091402110009)

摘　　要：根据离子势理论将灰分中SiO_2、Al_2O_3、Fe_2O_3、CaO、MgO、Na_2O、K_2O等氧化物划分为碱性氧化物、酸性氧化物;根据氧化物含量给出气化煤的熔融温度及黏度预测方法和经验计算公式,对气流床气化炉更换煤种后保障生产稳定运行提出指导性意见。In this paper,SiO2,Al2O3,Fe2O3,CaO,MgO,Na2O,K2O and other oxides in the ash are divided into basic oxides and acidic oxides according to the theory of ion potential.The melting temperature and viscosity prediction method and empirical formula of gasified coal are given according to the oxide content,providing guidance for guaranteeing the stable operation and production of entrained flow gasifier after replacing coal.

关 键 词：灰分 熔融温度 黏度 气化炉 离子势 

分 类 号：TQ541[化学工程—煤化学工程]