Ni-Mg-Al-LDHs的制备及其催化酯化高酸原油脱酸的研究  

Preparation of Ni-Mg-Al-LDHs materials and removal of naphthenic acids from high acid crude oil through catalytic esterification on Ni-Mg-Al-LDHs

作　　者：马向荣[1] 李健[1] 党睿[1] 高雯雯[1] 李霄[1] 屈媛[1] 

机构地区：[1]榆林学院化学与化工学院,陕西榆林719000

出　　处：《应用化工》2013年第1期30-32,共3页Applied Chemical Industry

基　　金：陕西省教育厅项目(2010JK936);榆林学院高层次人才项目(10GK21;11GK33;11GK34;11GK35)

摘　　要：采用尿素法和共沉淀法制备了Ni-Mg-Al-LDHs前驱体,在400℃煅烧,得Ni-Mg-Al-LDHs催化剂,研究其催化高酸原油酯化脱酸的效果。结果表明,反应时间为150 min,反应温度为220℃,醇/油体积比为0.05,催化剂与原油质量比为0.03时,可将原油酸度由5.82 mg KOH/g降至0.34 mg KOH/g。Ni-Mg-Al-LDHs was prepared by urea method and coprecipitation. The precursor was calcined at 400 % to give Ni-Mg-Al-LDHs catalysts. The effect on removal of naphthenic acids from high acid crude oil through catalytic esterification on Ni-Mg-Al-LDHs was researched. The results showed that the acidity of 5.82 mg KOH/g crude oil dropped to 0.34 mg KOH/g when the reaction temperature was 220 % ,the reaction time was 150 min, the volume ratio of alcohol and high acid crude was 0.05, the mass ratio of catalyst and high acid crude was 0.03.

关 键 词：Ni—Mg—Al-LDHs 高酸原油 催化酯化脱酸 

分 类 号：TQ138.1[化学工程—无机化工] TQ423.1