Petroleum heteroatom compounds in various commercial delayed coking liquids:characterized by FT-ICR MS and GC techniques

被引：0

作者：

Miao Hu ^{[1
]}

Chuang Guo ^{[1
,2
]}

Linzhou Zhang ^{[1
]}

Suoqi Zhao ^{[1
]}

Keng H.Chung ^{[1
,3
]}

Chunming Xu ^{[1
]}

Quan Shi ^{[1
]}

机构：

[1] State Key Laboratory of Heavy Oil Processing,China University of Petroleum

[2] Daqing Oilfield Limited Corporation

来源：

Science China(Chemistry) | 2017年 / 02期

基金：

中国国家自然科学基金;

关键词：

FT-ICR MS; molecular composition; heteroatom compounds; petroleum; delayed coking;

D O I：

暂无

中图分类号：

TE624.32 [];

学科分类号：

081702 ;

摘要：

Delayed coking is an important petroleum resid conversion process.The processability of coking liquids is known to be dependent on the heteroatom compounds present in the coking liquids.Eight commercial delayed coking liquids were characterized by electrospray ionization(ESI)Fourier transform ion cyclotron resonance mass spectrometry(ESI FT-ICR MS)and gas chromatographic techniques.High relatively abundant heteroatom compounds in the coking liquids were 1-4 aromatic-ring pyridinic nitrogen compounds,carbazoles,benzocarbazoles,phenols,mercaptans,benzothiophenes,dibenzothiophenes,and naphthobenzothiophenes.Coking liquids derived from various feeds had similar compound class types,molecular weight distribution ranges,and double bond equivalents(DBE).However,the concentration of individual compounds and the distribution of DBE versus carbon number of heteroatom compounds varied.A comparison of heteroatom compounds in coker feeds and products revealed the various reaction mechanism of heteroatom compounds occurred during the coking process.The results suggested that molecular-level process models can be developed for optimization of unit operation to obtain desirable products that meet the environmental specifications and quality requirements.

引用

页码：284 / 292

页数：9