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

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 f...

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Bibliographic Details
Published in:Chromatographia 2017, Vol.80 (1), p.145-150
Main Authors: Chattopadhyay, Kalicharan, Yadav, Anil, Singh, Dheer, Chopra, Anju, Rai, Kavita, Pandey, J. N., Kagdiyal, V., Saxena, D.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Benzene
Byproducts
Chemistry
Chemistry and Materials Science
Chromatography
Ethylbenzene
Gas chromatography
High performance liquid chromatography
Hydrocarbons
Laboratory Medicine
Mass spectrometry
Naphthenes
Paraffins
Pharmacy
Polycyclic aromatic hydrocarbons
Proteomics
Short Communication
Toluene
Xylene
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Summary: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.
ISSN:0009-5893
1612-1112
DOI:10.1007/s10337-016-3199-5