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.
出处
《应用化工》
CAS
CSCD
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)
