石灰石粒径对高硫燃料脱硫效率影响实验研究  

Study on Desulfurization Characteristics with Limestone to the High-sulfur Fuel

作　　者：杨天尉[1] 黄晓宇[1] 王恩禄[1] 陈珏[1] 宋治璐[1] 

机构地区：[1]上海交通大学热能工程研究所,上海200240

出　　处：《锅炉技术》2012年第6期75-78,共4页Boiler Technology

摘　　要：二氧化硫是造成环境污染的主要污染物之一,控制二氧化硫的排放势在必行。干法脱硫相较湿法脱硫有工艺过程简单、无污水、能耗低等优势。实验以细粉石灰石作为脱硫剂,通过对高硫石油焦的实验分析,得到其硫分动态析出特性,并对细粉石灰石燃烧脱硫效果以及影响脱硫效率的因素进行分析。实验结果表明,细石灰石作为脱硫剂能使脱硫效率大幅提升。当石灰石粒径为0.025mm以下时,脱硫效率可达84%以上。Sulfur dioxide is one of the main environmental pollutants.The sulfur dioxide emission should be limited.Compare with wet FGD,dry FGD has some advantages in the simple process,no sewage,the low energy consumption.The limestone powder will be as desulfurizer in the experiment.Through the analysis of high-sulfur petroleum coke,we get the separation characteristic of sulfur content and analyze the factors on the desulfurization efficiency of the limestone powder.Experimental results show that thin limestone powder could promote the desulfurization efficiency largely.If the grain diameter of limestone powder is less than 0.025mm,the desulfurization efficiency will be more than 84%.

关 键 词：石油焦 石灰石 脱硫 粒径 温区 

分 类 号：X705[环境科学与工程—环境工程]