准东煤脱钠提质研究  

STUDY ON SODIUM REMOVAL FOR ZHUNDONG COAL UPGRADING

作　　者：陈川[1] 张守玉[2] 施大钟 刘大海[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海硕士生200093 [2]上海理工大学能源与动力工程学院热能工程研究所,上海教授200093 [3]上海机易电站设备有限公司,上海高级工程师200437

出　　处：《煤炭转化》2013年第4期14-18,共5页Coal Conversion

基　　金：国家科技支撑计划项目(2012BAA04B01)

摘　　要：开发了一种洗涤溶液,并在实验室对该溶液脱除新疆准东煤中钠的效果进行了评估实验及工艺条件摸索.结果表明,温度是影响准东煤脱钠效果的主要因素,而洗涤溶液用量、洗涤时间、压力和颗粒尺寸的影响较小.在合适的工艺条件下使用本技术可将粒度为3mm^6mm,孔隙较不发达和钠含量较高的准东煤中钠含量降至2%以下,钠脱除效率高达70%以上.On the basis of the research on the existence form of sodium in coal,a method for sodium removal from Zhundong coal using a washing solution has been presented in the paper.The effects of temperature,pressure,coal particle size and washing solution amount on the sodium removal from Zhundong coal with the particle size of 3 mm-6 mm and poor pores was investigated.The experimental results show that the temperature employed is the main influencing factor for sodium removal and washing solution amount,the washing time,pressure and coal particle size has little influence on the results.After treatment with the right processing conditions,the upgraded Zhundong coal with the sodium content below 2％ （based on ash yield） is obtained and the sodium removal efficiency is higher than 70％.

关 键 词：准东煤 脱钠 提质 燃烧 

分 类 号：TQ533[化学工程—煤化学工程] TQ534