Gündüz F.Karaca H.2024-08-042024-08-04202318909773819781890977382https://hdl.handle.net/11616/92394Anadolu Birlik Holding Inc. Co.;CENAL Electricity Production Inc.;et al.;Hidro-Gen Energy Imp. Exp. Dist. and Trade Inc.;Turkish Coal Enterprises;Uysal Mining Inc. Co.40th Annual International Pittsburgh Coal Conference, PCC 2023 -- 4 October 2023 through 6 October 2023 -- 200012Impurities present in coal structures, when combusted, release harmful emissions into the environment. Sulfur is a primary impurity in this context. One of the most effective methods for removing inorganic materials from lignite, a type of coal, is chemical desulfurization. In this study, lignite samples from two different reserves in Turkey were treated with H2O2 and H2SO4 reagents at varying temperatures, reagent concentrations, and durations to examine sulfur removal. According to the results obtained, the sulfur removal rates for Tunçbilek and Yatağan lignites were found to be 31.81% and 48.12% respectively at 30% H2O2 concentration, and 32.12% and 57.14% respectively at 30% H2O2 and 0.1 N H2SO4 concentrations. As the concentration of the chemical reagent increased, sulfur removal also increased. In a 20% H2O2 solution under process conditions of 30-90 minutes, pyritic sulfur in Tunçbilek lignite decreased from 0.73% to 0.21%, and in Yatağan lignite, it decreased from 0.43% to 0.20%. In the desulfurization process conducted at 50°C with H2O2 reagent, the sulfatic sulfur content in Tunçbilek and Yatağan lignites was obtained as 0.21% and 0.07% respectively. The method used in this study proved effective in removing sulfur from low-rank lignites. It is considered an effective method to reduce the harmful effects of sulfur on the environment. © 2023 40th Annual International Pittsburgh Coal Conference, PCC 2023. All rights reserved.eninfo:eu-repo/semantics/closedAccessDesulfurizationSulfurSustainable developmentChemical reagentsCoal structureDesulphurizationHarmful emissionsImpurities inInorganic materialsProcess conditionReagent concentrationRemoval rateVarying temperatureLigniteConference Object2-s2.0-85195818164N/A