Detailed Hydrocarbon Class Composition Analysis and Trace Level BTEX Estimation in Raffinate Column Bottom (RCB) Using GC×GC–TOFMS

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• 作者：Kalicharan Chattopadhyay ; Anil Yadav ; Dheer Singh ; Anju Chopra…
• 关键词：GC×GC–TOFMS ; Raffinate column bottom ; Hydrocarbon class composition analysis ; BTEX
• 刊名：Chromatographia
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：80
• 期：1
• 页码：145-150
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chromatography; Proteomics; Pharmacy; Laboratory Medicine;
• 出版者：Springer Berlin Heidelberg
• ISSN：1612-1112
• 卷排序：80

文摘

A two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC×GC–TOFMS) method was developed for the hydrocarbon class composition analysis and benzene, toluene, ethylbenzene, and xylene (BTEX) estimation of raffinate column bottom (RCB), which is generated as a by-product from linear alkyl benzene (LAB) plants. The molecular level characterization of RCB is important to generate value-added products for the petrochemical industry. GC×GC–TOFMS was found to be an excellent tool for estimation of hydrocarbon class composition (paraffins, naphthenes, monoaromatics, diaromatics, and polyaromatic hydrocarbons) and trace level BTEX in a single run. The hydrocarbon class composition was validated with the standard method based on HPLC (ASTM D6591) and good correlation was obtained. Finally, RCB is anticipated to be a useful nonhazardous safe by-product which could be used further for generating added value.