热萃取小康庄1/3焦煤制备超纯煤的工艺研究  

Study on Super Clean Coal Preparation Technique with 1 /3 Coking Coal from Xiaokang Village by Heat Extraction

作　　者：崔咏梅[1] 胡永琪[1] 许永权[1] 袁中凯[1] 李立业 张兆翔[1] 赵风云[1] 

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]河北钢铁技术研究总院,河北石家庄052165

出　　处：《煤炭科学技术》2014年第1期121-124,共4页Coal Science and Technology

基　　金：河北省自然科学基金资助项目(B2011208089);河北省科技支撑计划资助项目(13200216D);河北科技大学博士科研启动基金资助项目(QD201045);河北科技大学校立科研基金资助项目(XL201116)

摘　　要：为获得制备超纯煤的最优工艺条件,以工业洗油为溶剂,采用热萃取技术从小康庄1/3焦煤中制备了超纯煤,考察了初始压力、停留时间、煤粒度、冷热过滤方式、溶剂体积比等因素对煤热萃取性能的影响,同时对工业洗油的循环使用进行了考察。结果表明:在惰性环境中,萃取、过滤温度380℃下,当煤粒度0.177 mm(80目),停留时间10 min,溶剂体积与煤的质量比为6∶1(mL/g)时,超纯煤的热萃取率为66.8%。回收后的工业洗油依然具有优良的热萃取性能,循环使用4次后超纯煤的热萃取率仍大于60%。In order to obtain the optimal technique conditions for preparing the super clean coal, taking industry washing oil as solvent, su- per clean coal was prepared by heat extraction with 1/3 coking coal from Xiaokang Village.The initial pressure, residence time, coal parti- cle size, cold-hot fihering method, volume ratio of solvents and other factors were investigated on the properties of coal heat extraction and the industry washing oil recycling times was studied.The results showed that in an inert environment, extraction and filtration temperature was 380 ~C ,coal particle size was 0.177 mm,residence time was l0 min,the ratio of solvent volume and coal mass was 6 ： 1 （mL/g） ,the super clean coal extraction yield was 66.8%.The industry washing oil after recovery still had excellent heat extraction performance.After re- cycled four times, the super clean coal extraction yield was still bigger than 60%.

关 键 词：1 3焦煤 热萃取 工业洗油 超纯煤 

分 类 号：TQ53[化学工程—煤化学工程]