溶剂芳香性对渣油沥青质稳定性的影响  

INFLUENCE OF SOLVENT AROMATICITY ON ASPHALTENE STABILITY

作　　者：施洋[1] 杨清河[1] 贾燕子[1] Shi Yang;Yang Qinghe;Jia Yanzi(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)

机构地区：[1]中国石化石油化工科学研究院

出　　处：《石油炼制与化工》2019年第12期51-55,共5页Petroleum Processing and Petrochemicals

摘　　要：为深入认识固定床渣油加氢-催化裂化双向组合技术溶剂芳香性与沥青质稳定性的关系,采用Flory-Huggins模型考察了沙特轻质原油常压渣油的沥青质稳定性,并用溶解度参数关联了溶剂的芳香性。结果表明,Flory-Huggins模型可用于研究渣油体系的沥青质稳定性。随着溶剂芳香性的增加,其溶解度参数增大,沥青质稳定性增强。密度较大、H C原子比较小的溶剂具有较大的溶解度参数,对沥青质的稳定性较有利。The relationship of solvent aromaticity and asphaltene stability of Saudi light AR in RICP technology was studied by Flory-Huggins model and the aromaticity of the solvent was correlated with the solubility parameter.The results proved the availability of Flory-Huggins model for measuring asphaltene stability in residue.The aspaltene stability increased with the increase of solvent AR ratio.The aromaticity could be evaluated by solubility parameter.The solvent with higher density and lower molar ratio of H C possessed higher solubility parameter and is beneficial to asphaltene stability.

关 键 词：溶解度参数 芳香性 Flory-Huggins模型 沥青质稳定性 

分 类 号：TE6[石油与天然气工程—油气加工工程]