DocumentCode :
3609405
Title :
Laboratory validation of method of solvent extraction for removal of sulphur compounds from mineral oil
Author :
Akshatha, A. ; Rajan, J. Sundara ; Ramachandra, H.
Author_Institution :
R&D Manage. Div., Central Power Res. Inst., Bangalore, India
Volume :
22
Issue :
5
fYear :
2015
fDate :
10/1/2015 12:00:00 AM
Firstpage :
2572
Lastpage :
2580
Abstract :
The presence of corrosive sulphur compounds in mineral oil is a serious problem affecting the life of transformers. There are several techniques available to remove corrosive sulphur and among them the method of solvent extraction is useful for complete removal of sulphur compounds. In this investigation, laboratory experiments were carried out to validate method of solvent extraction for removal of sulphur compounds like Dibenzyl disulphide and Mercaptan sulphur from mineral oil. The optimum oil to solvent ratio, solvent to co-solvent ratio are investigated and discussed. Efficiency of method of solvent extraction for removal of sulphur compounds is demonstrated on a laboratory scale and further improvements to properties of mineral oil is proposed by the use of conventional reclamation techniques.
Keywords :
minerals; separation; sulphur compounds; transformer oil; corrosive sulphur compounds; dibenzyl disulphide; laboratory validation; mercaptan sulphur; mineral oil; reclamation techniques; solvent extraction method; sulphur compounds removal; Aging; Compounds; Minerals; Oil insulation; Power transformer insulation; Solvents; Sulfur; DBDS; Mercaptan sulphur; N-methyl-pyrrolidone; copper corrosion; mineral oil reclamation; paper oil insulation; total sulphur;
fLanguage :
English
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
Publisher :
ieee
ISSN :
1070-9878
Type :
jour
DOI :
10.1109/TDEI.2015.005100
Filename :
7311032
Link To Document :
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