Abstract:Sulfur content of petroleum coke with different size and calcined coke were determined by Kulun Titration. The results show that particle size has different influence on sulfur content of petroleum coke with different size. 2.54% sulfur petroleum coke can screen out 2.25% petroleum coke (particle size of -0.5 mm), 3.35% sulfur petroleum coke can screen out 2.33% petroleum coke (particle size of -0.15 mm), screening effect of 5.98% of petroleum coke is weak. Grain size has obvious desulfurization difference for petroleum coke with different sulfur content. 2.54% petroleum coke with grain size of 0.5 mm has good desulfurization effect. 3.35% petroleum coke with grain size of 1 mm has good desulfurization effect. For 5.98% petroleum coke, desulfurization efficiency varies little in the whole particle size range.