【摘要】 分别以催化裂化柴油、回炼油和油浆为原料,对其加氢处理前后的油品性质和催化裂化性能进行了考察。结果表明:加氢后柴油的液化气和汽油收率分别提高了3.22,16.60个百分点,柴油收率降低了8.70个百分点,液体收率增加了19.09个百分点;与催化料单程裂化产物分布相比,加氢柴油回炼得到的综合转化率增加了7.90个百分点,综合产物中重油总收率降低了7.90个百分点,柴油收率降低了5.66个百分点,总液体收率增加了7.08个百分点,综合柴汽比(质量比)由0.29降到0.21。对催化柴油使用加氢处理-催化裂化组合工艺能够有效地降低油浆收率,降低柴汽比的同时还能提高液体收率。更多还原

【Abstract】 With fluid catalytic cracking diesel,recycle oil and slurry as raw material respectively,the oil properties and catalytic cracking performances of those before and after hydrogenation were investigated. The results showed that liquefied gas and gasoline yield of hydrogenated diesel increased by 3. 22,16. 60 percentage points respectively,diesel yield decreased by 8. 70 percentage points and liquid yield rose by 19. 09 percentage points; compared with products distribution of catalytic materials once-through cracking,the comprehensive conversion of recycled hydrogenation diesel increased by 7. 90 percentage points,total heavy oil yield of comprehensive products lowered by 7. 90 percentage points,diesel yield decreased by 5. 66 percentage points,total liquid yield increased by 7. 08 percentage points,comprehensive diesel to gasoline( mass ratio) reduced from 0. 29 to 0. 21,which showed that slurry yield could be effectively lowered by hydroprocessing-fluid catalytic cracking combined technology for catalytic diesel,lowering diesel to gasoline meanwhile improving liquid yield.更多还原