关于阿曼渣油在加氢处理过程中胶体稳定性的研究  

STUDY ON THE COLLOIDAL STABILITY OF OMAN RESIDUE DURING HYDROTREATING

作　　者：张会成[1] 颜涌捷[1] 齐邦峰[2] 孙万付[2] 张龙力[3] 

机构地区：[1]华东理工大学能源化工系,上海200237 [2]抚顺石油化工研究院,辽宁抚顺113001 [3]中国石油大学化学化工学院,山东东营257061

出　　处：《石油学报（石油加工）》2007年第6期91-95,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：中国石油化工股份有限公司项目(104024)资助

摘　　要：测定了阿曼减压渣油在正庚烷稀释过程中的电导率,计算了质量分数电导率。将渣油-正庚烷体系质量分数电导率最高点对应于沥青质聚沉起始点,以此时的正庚烷/渣油质量比表示渣油胶体的稳定性。同时考察了渣油各组分-甲苯体系的质量分数电导率随甲苯/渣油质量比的变化。结果表明,随着阿曼减压渣油加氢处理深度的增加,渣油胶体稳定性先增加而后下降;渣油质量分数电导率主要来自于沥青质组分。The electrical conductivity of vacuum residue from Oman was measured and mass fraction conductivity was calculated when the residue was gradually diluted with n-heptane. The onset of asphaltene precipitation was corresponding to the maxmum of the mass fraction conductivity for the residue/n heptane system. The mass ratio of n-heptane/residue at the maxmal mass fraction conductivity indicated the stability of residue colloid. The mass fraction conductivities of residue components in toluene were also determined. The result showed that the stability of residue firstly rose up and then fell down as the increase of hydrotreating degree for Oman vacuum residue. The mass fraction conductivity of residue was mainly contributed by asphaltene.

关 键 词：渣油 胶体稳定性 沥青质 质量分数电导率 加氢处理 

分 类 号：TE626.8[石油与天然气工程—油气加工工程]