In order to study the rule of sulfur migration of coal, Fengfeng Coal Coking Company carried out iron box experiments on the coal used in production. The sulfur conversion rate of single coal was discussed and the coal blending and coking experiments were carried out combining with petrographic data. The results show that the sulfur conversion rate of high sulfur gas coal is low, and the use of low sulfur coke, fertilizer coal and lean coal with low price and high quantity can be reduced while the quality of coke is guaranteed after blending, thus the cost of coal blending can be reduced.
