再生条件对硫转移剂脱硫性能的影响  

Effects of regeneration condition on desulfuration activity of sulfur transfer additive

作　　者：崔秋凯[1,2] 张强[1] 李春义[1] 古云磊[1] 刘富余[1] 山红红[1] 

机构地区：[1]中国石油大学重质油国家重点实验室,山东青岛266555 [2]中国石油天然气股份有限公司大港石化公司,天津大港300280

出　　处：《中国石油大学学报（自然科学版）》2009年第5期151-155,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：中国石油天然气股份有限公司项目(07-03-g6)

摘　　要：采用提升管循环流化床连续反应再生手段,考察再生条件对硫转移剂脱硫性能的影响。结果表明:随着再生温度的增加,硫转移剂的脱硫活性增加;再生器主风量影响催化剂的烧焦效果,但对硫转移剂的脱硫率没有明显的影响;烟气中过剩氧含量降低,硫转移剂的脱硫效果受到影响,但实验所用硫转移剂在烟气中氧气质量分数为0.8%时,SO2脱除率可达90%;催化剂在再生器中的停留时间明显影响硫转移剂的脱硫性能,停留时间越短,则脱硫率越低,即使停留时间为13 min,催化剂的脱硫率也可超过81%。Adding the sulfur transfer additive in the reaction-regeneration system of FCC process is a method to reduce the content of SO, in the regeneration flue. The riser recycling-bed units were used to investigate the effects of regeneration condition on desulfuration activity of sulfur transfer additive. The results show that the desulfuration activity of sulfur transfer additive increased continuously with the increase of regeneration temperature. The flow rate of main air in regeneration influenced the coke-burning, but not the desulfuration activity. The excess oxygen in the regeneration flue is low, which causes reducing of desulfuration activity. But the desulfuration ratio is 90% when the content of excess oxygen in flue gas is 0. 8%. The desulfuration activity decreases continuously with the decrease of residence time in regenerator, but the desulfuration ratio is over 81% when the residence time is 13 min.

关 键 词：催化裂化 硫转移剂 再生 脱硫活性 

分 类 号：TQ624.9[化学工程—精细化工]