摘要
以工业上常用的改性Y型分子筛(HY、USY、NNY)为主要酸性组分,Ni-W为活性金属组分,采用等体积浸渍法分别制备了分子筛类型、分子筛含量、磷助剂加入量、Hβ分子筛加入量、金属负载量、金属原子配比等不同的催化剂。以山东利华益集团减二线蜡油为原料油在100 mL固定床加氢装置上对各系列催化剂进行评价。结果表明,载体中分子筛(NNY与Hβ质量比为2∶1)总含量为30%~40%,P改性剂加入量为1.5%,金属总负载质量分数为30%,原子质量比[m(Ni)∶m(Ni+W)]为0.4时制备的催化剂具有较高的转化率、液体收率、中油选择性和脱硫脱氮率。
A series of catalysts with different zeolite type,zeolite content,phosphorus content,Hβzeolite content,metal content and different metal atom ratio were prepared by isometric impregnation method choosing different modified Y zeolites(HY,USY and NNY)which were commonly used in the industry as the main acid composition and Ni-W as the active metal components.The above catalysts were evaluated in a 100 mL fixed bed hydrogenation unit using Shandong Lihuayi Group s second-line wax oil as raw material.The evaluation results showed that catalyst had higher conversion,liquid yield,medium oil selectivity,and desulfurization and denitrification efficiency when mass fraction of zeolite in carrier(mass fraction of NNY molecular sieve and Hβmolecular sieve was 2∶1)was 30%-40%,addition amount of P modifier was 1.5%,total metal loading mass fraction was 30%and m(Ni)∶m(Ni+W)=0.4.
作者
延萌萌
Yan Mengmeng(Dongying Vocational College of Science and Technology,Dongying 257335,Shandong,China)
出处
《工业催化》
CAS
2020年第3期48-54,共7页
Industrial Catalysis
关键词
催化剂工程
加氢裂化催化剂
Y型分子筛
HΒ分子筛
catalyst engineering
hydrocracking catalyst
Y-type molecular sieve
Hβmolecular sieve
