CHC-20加氢裂化催化剂的开发

针对一段串联加氢裂化工艺,进行了新型化工原料型加氢裂化催化剂的研发工作.200 mL固定床加氢评价结果表明:以大庆VGO为原料,在控制原料(177℃)馏分油转化率为63%的转化率条件下,加氢裂化轻石脑油(65℃)收率为15.1%,可作为乙烯裂解原料或清洁汽油调和组分;重石脑油(65~177℃)收率为48.3%,芳潜为49%,是优质的催化重整原料;柴油(177~320℃)硫含量低于15μg/g,芳烃含量低于5%,可作为清洁柴油调和组分;尾油(320℃)收率为11.1%,BMCI值为5,是优质乙烯裂解原料.2 000 h的活性稳定性试验表明,研制的催化剂具有良好的活性稳定性,能够满足工业装置长周期运行的要求.

Development of CHC-20 hydrocracking catalyst

A novel hydrocracking catalyst was developed for producing chemical materials with reactors in series process. Evaluation of catalytic performance of the hydrocracking catalyst was carried out on a 200 mL fixed-bed hydrogenation unit. The results showed that under the 63% conversion of feedstock distillate （ 〉 177℃） using Daqing VGO as feedstocks, the yield of light naphtha （ 〈65℃） was 15.1% , which can be cracking raw material for ethylene production or blending components of clean gasoline; the yield of heavy naphtha （65 - 177℃ ） was 48.3% with potential aromaties of 49% , which can be high quality cracking raw material for ethylene; diesel oil （177-320 ℃ ） whose sulfur content is less than 15ug/g and aromatics content is less than 5Ф% ,which can be blending components of clean diesel ; the yield of tail oil （ 〉 320℃ ） was 11.1% with low BMCI value of 5, which can be cracking raw material for ethylene production. 2 000 h of activity and stability tests show that the developed catalyst has good activity and stability, which can meet long-term operation of plant requirements.