Linkage of Aromatic Ring Structures in Saturates, Aromatics, Resins and Asphaltenes Fractions of Vacuum Residues Determined by Collision-Induced Dissociation Technology  

作　　者：Wang Wei Liu Yingrong Liu Zelong Hou Huandi Tian Songbai 

机构地区：[1]SINOPEC Research Institute of Petroleum Processing, Beijing 100083

出　　处：《China Petroleum Processing & Petrochemical Technology》2016年第1期59-65,共7页中国炼油与石油化工（英文版）

基　　金：supported by the Major State Basic Research Development Program of China (973 Program, No. 2012CB224801)

摘　　要：The linkage of aromatic ring structures in vacuum residues was important for the refining process. The Fourier transform ion cyclotron resonance mass spectrometry(FT-ICR MS) combined with collision-induced dissociation(CID) is a powerful method to characterize the molecular structure of petroleum fractions. In this work, model compounds with different aromatic ring structures were measured by CID FT-ICR MS. The cracking of the parent ions and the generated fragment ions were able to distinguish different linkage of the model compounds. Then, vacuum residues were separated into saturates, aromatics, resins and asphaltenes fractions(SARA), and each fraction was characterized by CID technology. According to the experimental results, the aromatic rings in saturates and aromatics fractions were mainly of the island-type structures, while the aromatic rings in resins and asphaltenes fractions had a significant amount of archipelago-type structures.The linkage of aromatic ring structures in vacuum residues was important for the refining process. The Fourier transform ion cyclotron resonance mass spectrometry（FT-ICR MS） combined with collision-induced dissociation（CID） is a powerful method to characterize the molecular structure of petroleum fractions. In this work, model compounds with different aromatic ring structures were measured by CID FT-ICR MS. The cracking of the parent ions and the generated fragment ions were able to distinguish different linkage of the model compounds. Then, vacuum residues were separated into saturates, aromatics, resins and asphaltenes fractions（SARA）, and each fraction was characterized by CID technology. According to the experimental results, the aromatic rings in saturates and aromatics fractions were mainly of the island-type structures, while the aromatic rings in resins and asphaltenes fractions had a significant amount of archipelago-type structures.

关 键 词：FT-ICR MS vacuum residues SARA collision-induced dissociation（CID） 

分 类 号：TE624[石油与天然气工程—油气加工工程]