热水洗涤法处理龙口页岩油泥的试验研究
发布时间：2018-09-03 06:58
【摘要】：采用热水洗涤法处理龙口页岩油泥。利用纯水清洗页岩油泥,考察液固比、搅拌频率、清洗温度、清洗时间对油回收的影响,确定纯水清洗的最佳工况。经过试剂筛选、复配,确定试剂配方为OP-10∶Na_2SiO_3=1∶3。通过正交试验优化工况,试验结果表明:温度70℃、搅拌频率330 r/min、清洗时间30 min、液固比为5∶1、OP-10∶Na_2SiO_3=1∶3的浓度为6.0 g/L、含油率为60.31%的页岩油泥经过热化学法清洗后,残油率为2.84%。通过比较极差的大小,各因素对清洗效果影响的大小顺序为试剂浓度温度液固比搅拌频率。由扫描电镜(SEM)分析可知,清洗过程会对油泥的微观形貌产生一定的影响。试剂Na_2SiO_3清洗后油泥呈现网状沟壑结构,其分散程度和比表面积均有增加。在清洗试验后,清洗液可以循环使用,剩余的油泥渣制作成砖,进而减少对环境的二次污染。
[Abstract]:Longkou shale mud was treated by hot water washing method. The effects of liquid-solid ratio, stirring frequency, cleaning temperature and cleaning time on oil recovery were investigated by using pure water to clean shale oil mud. The optimum conditions of pure water cleaning were determined. The reagent formula was determined to be OP-10:Na_2SiO_3=1:3. by screening and compounding the reagent. Through orthogonal test, the results show that the temperature 70 鈩，
本文编号：2219249
[Abstract]:Longkou shale mud was treated by hot water washing method. The effects of liquid-solid ratio, stirring frequency, cleaning temperature and cleaning time on oil recovery were investigated by using pure water to clean shale oil mud. The optimum conditions of pure water cleaning were determined. The reagent formula was determined to be OP-10:Na_2SiO_3=1:3. by screening and compounding the reagent. Through orthogonal test, the results show that the temperature 70 鈩，
本文编号：2219249
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