摘要
分别以来源和属性不同的常压渣油和减压渣油为原料,在同一反应条件下进行加氢转化反应,考察原料属性对加氢残渣油收率和性质的影响。结果表明,无论是常压渣油还是减压渣油,都是黏度大、沥青质含量高的原料加氢反应转化率较高,汽油、柴油及焦炭收率较高,残渣油收率较低。与原料油相比,加氢反应所得大于350℃残渣油的饱和分含量增加,芳香分含量降低。实验所考察的四种渣油中只有沥青质含量很低的抚顺减压渣油加氢转化后所得沥青质与焦炭的产率之和大于原料中的沥青质含量,表明当原料中沥青质含量较高时,渣油加氢转化反应过程中沥青质主要以发生氢解反应生成小分子组分为主。
Influence of feedstock property on the yields and properties of residual oil formed during residue hydrotreating were studied by autoclave, using four residue feeds from different sources under the same reaction conditions. The experimental results demonstrated that feedstocks with higher viscos- ity and asphaltene content, no matter atmospheric residue （AR） or vacuum residue （VR）, exhibited higher conversions, higher yields of gasoline, diesel and coke, as well as lower residual （〉350 ℃） yields. Compared with feedstock, in residual formed by hydrotreating, its saturate content increased while aromatic content decreased. In all the four feedstocks tested, only for Fushun VR having extreme low asphaltene content, in its residual formed by hydrotreating the sum of asphaltene plus coke yield was higher than the asphaltene content in feedstock, which indicated that during hydrotreating reactions, for feedstocks with relative high asphaltene content, the asphaltene species mainly hydrocracked to smaller molecules.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2013年第2期33-36,共4页
Petroleum Processing and Petrochemicals
基金
中国石油重大科技专项(10-01A-05-01-04)
中央高校基本科研业务费专项基金项目(27R1104049A)
中国石油科技创新基金项目(2011D-5006-0405)
关键词
原料
渣油加氢
残渣油
收率
沥青质
feedstock residue hydrotreat!ng
residual oil yield
asphaltene
