Estimation of Total Aromatics and Their Distribution as Mono and Global Di-Plus Aromatics in Diesel-Range Products by NMR Spectroscopy

In the present work, a new method based on 1H NMR spectroscopy has been developed for the estimation of total aromatics and their distribution as mono- and polynuclear (di-ring plus) aromatics in diesel-range fuel products. Multipulse NMR techniques such as, distortionless enhancement by polarizatio...

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Published in:Energy & fuels 1998-11, Vol.12 (6), p.1223-1227
Main Authors: Bansal, V, Kapur, G. S, Sarpal, A. S, Kagdiyal, V, Jain, S. K, Srivastava, S. P, Bhatnagar, A. K
Format: Article
Language:English
Subjects:
Applied sciences
Crude oil, natural gas and petroleum products
Energy
Exact sciences and technology
Fuels
Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts
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cited_by cdi_FETCH-LOGICAL-a324t-f5be711c789e6a7cdbe437269cdeed7f4f086f7fd476a4dfa2ddc47e2cfe46503
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container_end_page 1227
container_issue 6
container_start_page 1223
container_title Energy & fuels
container_volume 12
creator Bansal, V
Kapur, G. S
Sarpal, A. S
Kagdiyal, V
Jain, S. K
Srivastava, S. P
Bhatnagar, A. K
description In the present work, a new method based on 1H NMR spectroscopy has been developed for the estimation of total aromatics and their distribution as mono- and polynuclear (di-ring plus) aromatics in diesel-range fuel products. Multipulse NMR techniques such as, distortionless enhancement by polarization transfer and 2-dimensional heteronuclear correlation have been applied for the unambiguous assignment of the 2.0−3.5 ppm region due to α-substituents on the aromatic ring in the 1H NMR spectra. The estimation of polynuclear aromatics is based on the estimation of bridgehead aromatic (Arb) and substituted aromatic (Arq) carbons using equations developed. The proposed 1H NMR-based method correlates very well with the standard IP-391/90- and mass-spectrometric-based method (R 2 = 0.99).
doi_str_mv 10.1021/ef980052y
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source American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list)
subjects Applied sciences
Crude oil, natural gas and petroleum products
Energy
Exact sciences and technology
Fuels
Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts
title Estimation of Total Aromatics and Their Distribution as Mono and Global Di-Plus Aromatics in Diesel-Range Products by NMR Spectroscopy
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