Select the dry fine desulfurization process to remove the various forms of sulfur in the gas. There is thioether, thiophene, mercaptan and etc sulfur form in coke oven gas. Generally adopt hydrogenation process, which will transform the organic sulfur into inorganic sulfur, and then remove the inorganic sulfur. During the hydrogenation process, the gas will be heated to 300℃ and the inorganic sulfur will be removed using a medium temperature desulfurizer. This method avoids the process of "alternating hot and cold", and you could recovery of the converter heat as a heat source.