摘要：Olefins are ubiquitous in processed petroleum streams undergoing thermal and catalytic cracking processes. However, the molecular characterization of olefins is often troublesome as a result of the presence of cycloalkanes or aromatic hydrocarbons, which cannot be distinguished from each other because of their identical molecular composition. This study provides a novel method to selectively characterize the molecular composition of olefins in processed petroleum streams. The olefins were selectively converted into halohydrocarbons with iodine monochloride as a reaction reagent and then subjected to high-resolution mass spectrometry analysis with positive-ion atmospheric pressure chemical ionization. The molecular composition of olefins in the coker diesel, the coker gas oil, and the pyrolysis gas oil was successfully characterized by the method, which indicates that the linear mono-olefins are often the dominant species. The derivatization also enables the identification of co-eluted individual compounds in gas chromatographic analysis. The method could be applicable to other streams from complex fossil fuels.

ISSN号：0887-0624

卷、期、页：卷36期23: 14187-14193

发表日期：2022-12-01

影响因子：3.604600

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）,SCIE（科学引文索引网络版）

发表期刊名称：ENERGY & FUELS

通讯作者：李硕凡,刘莹

第一作者：张亚和,吴建勋,张未来,史权

论文类型：期刊论文

论文概要：李硕凡,刘莹,张亚和,吴建勋,张未来,史权，Molecular Characterization of Olefins in Petroleum Fractions by Iodine Monochloride Addition and Atmospheric Pressure Chemical Ionization Mass Spectrometry，ENERGY & FUELS，2022，卷36期23: 14187-14193

论文题目：Molecular Characterization of Olefins in Petroleum Fractions by Iodine Monochloride Addition and Atmospheric Pressure Chemical Ionization Mass Spectrometry