Title: Sulphur removal from Artvin-Yusufeli lignite with acidic hydrogen peroxide solutions

Authors: Menderes Levent; Ömer Kaya; M. Muhtar Kocakerim; Özkan Küçük

Addresses: Department of Chemical Engineering, Uşak University, Uşak, 64100, Turkey ' SASA Polyester Company, Adana, Turkey ' Department of Chemical Engineering, Çankırı Karatekin University, Çankırı, Turkey ' Department of Material Sci. and Nanotech. Eng., Kastamonu University, Kastamonu, Turkey

Abstract: In this study, the optimisation of sulphur removal by H₂O₂/H₂SO₄ solutions, and a limited kinetic measurements by H₂O₂/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; sulphur removal; kinetic measurements; temperature; ash removal.

DOI: 10.1504/IJGW.2016.077912

International Journal of Global Warming, 2016 Vol.10 No.1/2/3, pp.178 - 195

Received: 04 Aug 2014
Accepted: 16 Mar 2015
Published online: 22 Jul 2016 *

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