Study on the Removal of Acid from Straight-Run Diesel by Complex Solution Extraction Method

doi:10.3863/j.issn.1000-2634.1996.01.013

西南石油大学学报(自然科学版) ›› 1996, Vol. 18 ›› Issue (1): 105-110.DOI: 10.3863/j.issn.1000-2634.1996.01.013

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Study on the Removal of Acid from Straight-Run Diesel by Complex Solution Extraction Method

Tang Xiaodong Xu Rong

Dept.of Chemical Engineering

Received:1995-07-10 Revised:1900-01-01 Online:1996-02-20 Published:1996-02-20

Abstract

Abstract: On the basis of [5], 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.

Key words: Diesel, Naphthenic acid, Extraction, Distillation, Rcovery

CLC Number:

TE624.5

Tang Xiaodong Xu Rong. Study on the Removal of Acid from Straight-Run Diesel by Complex Solution Extraction Method[J]. 西南石油大学学报(自然科学版), 1996, 18(1): 105-110.

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Study on the Removal of Acid from Straight-Run Diesel by Complex Solution Extraction Method

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