中和法处理焦化蜡油酸渣的正交实验研究

采用中和法处理焦化蜡油酸渣使酸渣生成渣油和无机盐,通过正交实验考察了中和剂用量、反应温度、反应时间对渣油收率和渣油酸值的影响;并应用数学方法求出满足要求的最佳反应条件.结果表明,在中和剂用量13.15%,反应温度80℃,反应时间15 min的最佳条件下,渣油收率78.08%,酸值7 mgKOH/g,渣油中含沥青33.1...

Orthogonal Study on Treating Acid Residue from Coke Gas Oil by Neutralization

Acid residue in the coke gas oil was treated using neutralizer to produce residue and inorganic salt by neutralization. The effects of neutralizer amount, reaction temperature and react time on the yield and acid value of residue were examined through orthogonal experiment. The best operation conditions were ob- tained by mathematical methods as follows： neutralizer amount 13.15%, the reaction temperature 80 ℃, reaction time 15 minutes. Under the best conditions, the yield of residue was 78.23%, and the acid value was 7 mgKOH/g. The residue contains asphaltenes 33.17%, saturated hydrocarbons 6.16%, aromatic hydrocar- bons 31.69%, gelatine 23.49% ,and the recovery is 94.51%. The recovery of inorganic salt reach 80.22% using the secondary -crystallization and the inorganic salt purity is 99.46%.