Conversion of methanol to hydrocarbons III. Methylation, ethylation, and propylation of benzene with methanol

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(88)90030-9· OSTI ID:6960432

Kaeding, W W ^[1]

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1. Mobil Chemical Company, Princeton, NJ (USA)

Methanol is converted to hydrocarbons (and water) over HZSM-5 zeolite catalyst in the presence of 1-8M excesses of benzene. Methanol products are primarily aliphatic hydrocarbon gases and C{sub 1} to C{sub 4} aliphatic substituents on the aromatic ring. Methylation of benzene to produce toluene increases as the feed ratio of methanol/benzene decreases. Mild conditions minimize aromatic ring production from methanol. Molar distribution of the methylene group (-CH{sub 2}-) in the product, is tabulated according to carbon number. Methane plus methyl substituents on the aromatic ring measure C{sub 1}; ethane, ethylene, and ethyl ring substituents measure C{sub 2}, etc. At temperatures up to 325 C, methylene distribution in the product is methyl = ethyl > propyl {much gt} butyl. Above 350 C, methyl {much gt} ethyl > propyl. This distribution of the methylene group, under mild conditions, may be a measure of the early production of light olefins, from methanol, within the zeolite pores.

• OSTI ID: 6960432
• Journal Information: Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 114:2; ISSN 0021-9517; ISSN JCTLA
• Country of Publication: United States
• Language: English

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ALCOHOLS
ALKANES
ALKENES
ALKYLATED AROMATICS
ALKYLATION
AROMATICS
BENZENE
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CONVERSION
ETHANE
ETHYLENE
HYDROCARBONS
HYDROXY COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
METHANE
METHANOL
MINERALS
ORGANIC COMPOUNDS
REACTION KINETICS
SYNTHESIS
TOLUENE
ZEOLITES