To investigate the relationship between hydrocarbon compositions of feedstocks and their catalytic cracking behaviors on molecular level has been an important trend to increase processing efficiency. This paper provided a novel technique on the research of separation and characterization of feedstocks. Three different types of VGO were selected, and separated into various distillates and hydrocarbon groups by true boiling-point distillation and solid phase extraction. GC/MS and GC/TOF were used to characterize hydrocarbon compositions of the separated saturate and aromatic components and their carbon number distributions in detail, simplified quasi-molecular level data were obtained; 13C NMR was adopted to further analysis paraffinic chain structure of hydrocarbon molecules.

Studies on catalytic cracking performances of saturates and aromatics separated from vacuum gas oil - I: Separation and characterization

245th National Meeting (2013)

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