摘要：A FCC slurry decant oil was subjected to catalytic hydrotreating to investigate the molecular transformation of sulfur-, nitrogen-, and oxygen-containing compounds. A methylation/demethylation method was employed to isolate thiophenic species, enabling detailed characterization of heteroatomic compounds. The raw slurry oil and its hydrotreated product were characterized using gas chromatography-mass spectrometry (GC-MS), high-temperature simulated distillation, and Orbitrap mass spectrometry (Orbitrap MS). The process achieved 61.9% sulfur removal, with pronounced resistance observed in sterically hindered dibenzothiophenes, notably a C4-dibenzothiophene peak tentatively assigned as 2,4,6,8-tetramethyldibenzothiophene which showed no conversion. Nitrogen and oxygen compounds showed lower reactivities, with removal rates of 23.1% and 9.34% respectively, undergoing mainly ring saturation rather than complete heteroatom elimination. The study provides molecular-level insights into the hydrotreating behavior of heteroatomic compounds in slurry oils.

ISSN号：1759-9660

卷、期、页：卷17期47：9667-9676

发表日期：2025-11-20

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：ANALYTICAL METHODS

参与作者：李海栋,陈秀

第一作者：张亚和,史权

论文类型：期刊论文

论文概要：李海栋,陈秀,张亚和,史权，Composition and transformation of sulfur-, nitrogen-, and oxygen-containing compounds in the hydrotreating process of a FCC slurry decant oil，ANALYTICAL METHODS，2025，卷17期47：9667-9676

论文题目：Composition and transformation of sulfur-, nitrogen-, and oxygen-containing compounds in the hydrotreating process of a FCC slurry decant oil