On the question of aromatic ring expansion-contraction for conversions with a ZSM-5 catalyst

Journal Article · Tue Jan 01 04:00:00 EST 1991 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(91)90212-M· OSTI ID:5598395

Dabbagh, H A; Davis, B H ^[1]

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1. Univ. of Kentucky, Lexington (USA)

Toluene, labeled with {sup 14}C in either the methyl position or uniformly in the aromatic ring, did not undergo a measurable amount of either ring expansion-contraction or ring degradation to produce ethene at temperatures up to 350{degrees}C. Ethylbenzene dealkylation and disproportionation and xylene isomerization occur to produce equilibrium mixtures of diethylbenzenes or xylenes under these reaction conditions; hence, ring expansion-contraction must be much slower than these isomerization reactions.

• OSTI ID: 5598395
• Journal Information: Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 127:1; ISSN 0021-9517; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKENES
ALKYLATED AROMATICS
AROMATICS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON ISOTOPES
CATALYTIC EFFECTS
CHEMICAL REACTIONS
DEALKYLATION
ETHYLENE
EVEN-EVEN NUCLEI
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOMERIZATION
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
MATERIALS
MINERALS
NUCLEI
ORGANIC COMPOUNDS
RADIOISOTOPES
SYNTHESIS
TEMPERATURE DEPENDENCE
TOLUENE
TRACER TECHNIQUES
XYLENES
YEARS LIVING RADIOISOTOPES
ZEOLITES