178 Int. J. Global Warming, Vol. 10, Nos. 1/2/3, 2016 Copyright © 2016 Inderscience Enterprises Ltd. Sulphur removal from Artvin-Yusufeli lignite with acidic hydrogen peroxide solutions Menderes Levent* Department of Chemical Engineering, Uşak University, Uşak, 64100, Turkey Email: menderes.levent@usak.edu.tr *Corresponding author Ömer Kaya SASA Polyester Company, Adana, Turkey Email: omer.kaya@sasa.com.tr M. Muhtar Kocakerim Department of Chemical Engineering, Çankırı Karatekin University, Çankırı, Turkey Email: mkocakerim@yahoo.com Özkan Küçük Department of Material Sci. and Nanotech. Eng., Kastamonu University, Kastamonu, Turkey Email: okucuk@kastamonu.edu.tr Abstract: In this study, the optimisation of sulphur removal by H 2 O 2 /H 2 SO 4 solutions, and a limited kinetic measurements by H 2 O 2 /HCl solutions have been carried over Artvin/Yusufeli lignite. In kinetic measurements, only the effect of temperature on removal of sulphur has been investigated. By keeping all other parameters constant, with increments in temperature at different times, it has been seen that removal of sulphur is increased. A statistical experimental arrangement which has six parameters and for each parameter there is twenty five experiments with five levels. In generally, pyritic sulphur, total sulphur, organic sulphur and ash removal rates have been determined. According to carried out variance analysis, in removal of pyritic and total sulphur, all parameters are effective, but, in removal of organic sulphur, acid concentration and particle size are not effective, and in removal of ash, only, acid concentration is not effective, however, all other parameters are effective. Keywords: desulphurisation; pyritic sulphur; total sulphur; organic sulphur; lignite; hydrogen peroxide.