粒度对石油焦硫含量分布及煅烧脱硫的影响研究

通过库伦滴定法分别测定不同粒度石油焦的硫含量及其煅烧后的硫含量。结果表明,粒度对不同硫含量石油焦中硫含量有影响,且差异较大,硫含量2.54%石油焦可筛分出硫含量2.25%石油焦(粒径-0.5mm),3.35%石油焦可筛分出硫含量2.33%石油焦(粒径-0.15mm),硫含量5.98%石油焦筛分的作用较小;粒度对石油焦脱硫具有明显差异,粒度+0.5mm的2.54%石油焦脱硫效果较好,粒度+1mm的3.35%石油焦脱硫效果较好,整个粒度范围内5.98%石油焦脱硫效果差异不大。

Effect of Particle Size on Sulfur Distribution and Calcining Desulfurization of Petroleum Coke

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.