基于振动混流技术的油页岩干燥试验研究
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摘要
为解决油页岩干馏过程中原料水分造成的能耗增大、油质下降等问题,基于振动混流技术的油页岩干燥技术,将振动能量引入末页岩的干燥过程,通过控制给入的物料量、调节燃烧室内的煤气与空气的流量配比,研究在不同处理量和烟气温度下干燥器对油页岩的去水效果。试验结果表明,基于振动混流技术的干燥系统可对油页岩进行有效脱水,脱水效率超过70%。烟气入口温度在210~220℃时,油页岩去水率最高;通过理论计算和数据分析,得到了原料水分与补充煤气量的拟合方程。
In order to solve the problems of high energy consuming and low oil quality arising from moisture content of feeding in oil shale retorting process,the drying system baseed on vibration and mixing flow technology was proposed.By adjusting the flow ratio of gas to air in the combustion chamber,the desiccator's water removal effect on oil shale was studied under different treatment quantity and flue gas temperature.The experimental results show that the drying system based on vibration and mixing flow technology can dewater oil shale effectively,and the dehydration efficiency is more than 70%.When the inlet temperature of flue gas is 210-220 ℃,the water removal rate of oil shale is the highest,and the fitting equation between the water content of raw material and the quantity of supplementary gas is obtained by theoretical calculation and data analysis.
In order to solve the problems of high energy consuming and low oil quality arising from moisture content of feeding in oil shale retorting process,the drying system baseed on vibration and mixing flow technology was proposed.By adjusting the flow ratio of gas to air in the combustion chamber,the desiccator's water removal effect on oil shale was studied under different treatment quantity and flue gas temperature.The experimental results show that the drying system based on vibration and mixing flow technology can dewater oil shale effectively,and the dehydration efficiency is more than 70%.When the inlet temperature of flue gas is 210-220 ℃,the water removal rate of oil shale is the highest,and the fitting equation between the water content of raw material and the quantity of supplementary gas is obtained by theoretical calculation and data analysis.
引文
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[2]杨永亮.油页岩开发及其现状[J].中国化工贸易,2015(6):42.YANG Yongliang.Development status of oli shale[J].China Chemical Trade,2015(6):42.
[3]秦宏,岳耀奎,刘洪鹏,等.中国油页岩干馏技术现状与发展趋势[J].化工进展,2015,34(5):1191-1198.QIN Hong,YUE Yaokui,LIU Hongpeng,et al.Current status and prospect of oil shale retorting technologies in China[J].Chemical Industry and Engineering Progress,2015,34(5):1191-1198.
[4]王清强,马跃,李术元,等.世界油页岩资源研究开发利用近况---并记2016年国外两次油页岩国际会议[J].中外能源,2017,22(1):23-29.WANG Qingqiang,MA Yue,LI Shuyuan,et al.Global oil shale research,development and utilization today:Two international oil shale symposiums held in 2016[J].Sino-Global Energy,2017,22(1):23-29.
[5]侯吉礼,马跃,李术元,等.世界油页岩资源的开发利用现状[J].化工进展,2015,34(5):1183-1190.HOU Jili,MA Yue,LI Shuyuan,et al.Development and utilization of oil shale worldwide[J].Chemical Industry and Engineering Progress,2015,34(5):1183-1190.
[6]柏静儒,孙灿辉,李晓航,等.内蒙油页岩喷动床干燥过程分析[J].化学工程,2016,44(6):36-41.BAI Jingru,SUN Canhui,SUN Xiaohang,et al.Analysis for spouted bed drying of Inner Mongolia oil shale[J].Chemical Engineering(China),2016,44(6):36-41.
[7]邹伟龙.油页岩流化床流化特性及传热传质的研究[D].大连:大连理工大学,2015.
[8]冉媛媛,范新欣,于才渊,等.油页岩干燥特性实验研究[C]//第十三届全国干燥会议论文集.大连:大连理工大学,2011:262-269.
[9]NING Y,ZHOU Y,MIAO Y.Analysis and modeling of wangqing oil shale drying characteristics in a novel fluidized bed dryer with asynchronous rotating air distributor[J].China Petroleum Processing&Petrochemical Technology,2016,18(2):70-79.
[10]姚艺彬,于才渊.油页岩干燥与热解性能的研究[C]//第十四届全国干燥技术交流会论文集.大连:大连理工大学,2013:328-332.
[11]秦宏,李建坡,王擎,等.油页岩气体热载体干馏炉内干馏特性研究[J].化学工程,2015,43(5):11-15.QIN Hong,LI Jianbo,WANG Qing,et al.Retorting characteristics of oil shale retort with gas heat carrier[J].Chemical Engineering(China),2015,43(5):11-15.
[12]XIA L,ZHANG H,WANG B,et al.Experimental and numerical analysis of oil shale drying in fluidized bed[J].Drying Technology,2016,35(7):802-814.
[13]靳小萌.基于油页岩气流干燥的CFD模拟和实验研究[D].大连:大连理工大学,2015.
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