渣油热反应体系中第二液相形成与液相掺兑物的关系  

EFFECTS OF BLENDING OILS ON FORMATION OF THE SECOND LIQUID PHASES IN THERMAL REACTION SYSTEMS OF VACUUM RESIDUA

作　　者：李生华[1] 刘晨光[2] 阙国和[2] 梁文杰[2] 朱亚杰 

机构地区：[1]清华大学 [2]石油大学

出　　处：《石油学报（石油加工）》1999年第4期7-11,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金

摘　　要：向渣油体系中掺兑具有不同芳香度和芳香性分布的液相掺兑物，能够不同程度地改变渣油热反应体系中第二液相的相分离特性（如相分离点的出现时间，相分离体的形态），从而改变渣油热反应体系的生焦特性。液相掺兑物的芳香度越高、芳香性分布范围越宽，其抑制第二液相形成和推迟相分离点出现时间的作用越显著。非芳香性液相掺兑物促进第二液相的形成。Blending oils with diverse aromaticities and aromatic distributions can change the phase separation behaviors,e g onset points and morphology of the second liquid phases to different extent and therefore alter the coke formation characteristics of the thermal reaction systems of vacuum residua.The higher the aromaticity of the blending oils,the wider their aromatic distributions and the more potential their capabilities to postpone the inception of the second liquid phases.Non aromatic blending oils help promote the formation of the second liquid phases.Effects of blending oils on the formation characteristics of the second liquid phases are attributed to their influnces on the thermal stability of vacuum residua or their dynamic stablility under heat treatment.

关 键 词：减压渣油 热反应 第二液相 液相掺兑物 渣油 

分 类 号：TE626.25[石油与天然气工程—油气加工工程]