【摘要】：采用熱水洗滌法處理龍口頁巖油泥。利用純水清洗頁巖油泥,考察液固比、攪拌頻率、清洗溫度、清洗時間對油回收的影響,確定純水清洗的最佳工況。經(jīng)過試劑篩選、復(fù)配,確定試劑配方為OP-10∶Na_2SiO_3=1∶3。通過正交試驗優(yōu)化工況,試驗結(jié)果表明:溫度70℃、攪拌頻率330 r/min、清洗時間30 min、液固比為5∶1、OP-10∶Na_2SiO_3=1∶3的濃度為6.0 g/L、含油率為60.31%的頁巖油泥經(jīng)過熱化學(xué)法清洗后,殘油率為2.84%。通過比較極差的大小,各因素對清洗效果影響的大小順序為試劑濃度溫度液固比攪拌頻率。由掃描電鏡(SEM)分析可知,清洗過程會對油泥的微觀形貌產(chǎn)生一定的影響。試劑Na_2SiO_3清洗后油泥呈現(xiàn)網(wǎng)狀溝壑結(jié)構(gòu),其分散程度和比表面積均有增加。在清洗試驗后,清洗液可以循環(huán)使用,剩余的油泥渣制作成磚,進而減少對環(huán)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，

本文編號：2219249