Oxydesulphurization of coal using trona mineral

This chapter discusses the desulfursulfursulfurization of coal by oxydesulfursulfursulfurization method using raw trona mineral. The experiments are carried out on a Turkish lignite sample that has both high pyritic and high organic sulfur contents. Some experimental parameters, such as temperature, partial pressure of oxygen, concentration, and time, are investigated. The economic applicability of a chemical desulfursulfursulfurization method depends on the price and abundance of reagents used. Because most of the reagents are expensive and unrecoverable, using these chemical methods economically seem impossible. The acidity of the solution causes some corrosive effects on the equipments. The experiments are performed in a 1-liter magnetically stirred autoclave made of Type 316 stainless steel.