Measurement and prediction of methyl-substituted naphthalene isomer ratios in liquid hydrocarbon fuels

Journal Article · Thu Aug 01 04:00:00 UTC 1991 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00056a046· OSTI ID:7271202

Borrett, V T; Charlesworth, J M; Moritz, A G ^[1]

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1. Materials Research Labs., Ascot Vale (Australia)

In this paper, results for the relative isomer abundance of di- and trimethylnaphthalenes in crude and processed products from petroleum, shale oil, and coal tar are reported, together with several procedures for the calculation of the isomer distribution at equilibrium. The data suggest that the isomer distributions can approach the equilibrium values in certain circumstances. The mechanisms by which such equilibria are achieved may equally explain the distribution of the lower alkylbenzenes, with respect to both isomer distribution and equilibria involving trans-alkylation reactions. This is at variance with the mechanism postulated for the acid-catalyzed isomerization of alkylnaphthalenes in which only intramolecular methyl migrations are thought to occur. The thermodynamic calculations employed here are easily extended to other polycyclic systems.

• OSTI ID: 7271202
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 30:8; ISSN IECRE; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
& Peat-- Properties & Composition
02 PETROLEUM
020400 -- Petroleum-- Processing
023000* -- Petroleum-- Properties & Composition
04 OIL SHALES AND TAR SANDS
040500 -- Oil Shales & Tar Sands-- Properties & Composition
AROMATICS
CALCULATION METHODS
CHEMICAL COMPOSITION
COAL TAR OILS
CONDENSED AROMATICS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
INDUSTRIAL PLANTS
ISOMER RATIO
MINERAL OILS
NAPHTHALENE
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PETROLEUM REFINERIES
PHYSICAL PROPERTIES
SHALE OIL
THERMODYNAMIC PROPERTIES