Effect of Demineralization Process on the CO2 Gasification of Lignite

The effect of different demineralization process on co2 gasification ofcokes obtained from karaman / ermenek lignite at different temperatures wasinvestigated in this study. 10% and 20% hydrochloric acid (hcl), nitric acid(hno3) and sulfuric acid (h2so4) solutions were used in the demineralizationprocess. the demineralized lignite samples were subjected to coking process at thetemperatures ranging between 500c‐800c, and the reaction capabilities of theobtained cokes in the gasification reaction with co2 at the temperatures rangingbetween 900c–975c were determined. the reaction capabilities of thedemineralized lignite samples during co2 gasification were observed to be lowerthan those of the samples untreated with acid. in addition, it was observed that thereaction capabilities of cokes increased with increasing of coking temperature.