摘要
在小型固定流化床实验装置上,以大庆常压渣油为原料,采用华北石化公司第Ⅱ套催化裂化装置的平衡剂为催化剂,在反应温度480～490℃、剂油质量比为6、空速为20 h^(-1)的条件下,考察加入助剂LBO-A对催化裂化反应的影响。结果表明,随助剂LBO-A加入量的增加,重油裂化能力降低,汽油收率和液体收率减少,但汽油中芳烃含量增加;当助剂LBO-A加入量为10%时,催化裂化产品分布较合理,汽油中烯烃质量分数降低到20%以下,汽油中芳烃含量增加4.2个百分点。
The effect of adding LBO-A, an additive for octane improvement and olefin reduction,on the catalytic cracking reactions was investigated on a small fixed-fluidized bed reactor using equilibrium catalyst from the 2^# FCC unit of Huabei Petrochemical Company as main catalyst and Daqing atmospheric residue as feedstock under the conditions of a reaction temperature range of 480- 490 ℃ ,a catalyst to oil mass ratio of 6 and a WHSV of 20 h 1^-1. Test results showed that with the increase of LBO-A dosage in the catalyst inventory,the heavy oil conversion reduced,the gasoline yield and total liquid yield decreased, yet the aromatic content in gasoline increased. An optimum product distribution was obtained at the LBO-A added dosage of 10% ,the olefin content of gasoline was less than 20% and the aromatic content of gasoline was increased by 4.2 percentage points.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2009年第12期30-33,共4页
Petroleum Processing and Petrochemicals
关键词
重油
催化裂化
操作条件
助剂
烯烃
辛烷值
heavy oil
catalytic cracking
operating condition
additive
olefin
octane number
