摘要
本文在【５】的基础上，进一步开发出复合溶剂萃取法用于直馏柴油脱酸和回收环烷酸的工艺流程。研究表明，该工艺的环烷酸脱除率达９７％以上，精制后柴油质量满足ＧＢ２５２－７７质量标准；复合溶剂经蒸馏回收可循环使用，同时得到了环烷酸副产品；该工艺不产生三废，有利于环境保护。
On the basis of , this paper further develops the technology that naphthenic acid is removed and recovered from straight-run diesel by the complex solution extraction method. The test shows that this process is rather efficient with more than 97 % of naphthenic acid removed. The quality of the treated diesel fuel is high enough to meet specification of GB252-77 . The composite solvent can be used repeatedly after it is recovered by distillation, and in the meanwhile the by-products of naphthenic acid is obtained. This process eliminates the “three wastes”and is favourable to environmental protection. This process also overcomes the deficiencies of sodafining-electric treatment and surfuric acid neutralization methods.
出处
《西南石油学院学报》
CSCD
1996年第1期105-110,共6页
Journal of Southwest Petroleum Institute
关键词
柴油
环烷酸
萃取
蒸馏
回收
复合溶剂
Diesel
Naphthenic acid
Extraction
Distillation
Rcovery
