Primary reaction steps in the methanol-to-olefin transformation on zeolites

Journal Article · Sun Nov 01 04:00:00 EST 1987 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(87)90167-9· OSTI ID:5206333

Novakova, J; Kubelkova, L; Dolejsek, Z

The interaction of methanol with HZSM-5 and dealuminated HY zeolites was studied by temperature-programmed desorptionmass spectrometric detection and infrared spectroscopy of surface compounds. The increased amount of preadsorbed methanol andor methanol added during the thermal desorption at 250-400/sup 0/C changed the composition of gaseous products over HZSM-5 from methane and formaldehyde to C/sub 2/..sqrt../sub 5/ aliphatic compounds, mainly ethylene and propylene, while over dealuminated HY only the latter products appeared. The reaction of gaseous methanol with very reactive surface C/sub 1/ species is assumed to be responsible for the formation of the first C-C bonds on both zeolite types

• Research Organization: J. Heyrovsky Institute of Physical Chemistry and Electrochemistry, Prague (Czechoslovakia)
• OSTI ID: 5206333
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 108:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALCOHOLS
ALDEHYDES
ALKANES
ALKENES
CATALYTIC EFFECTS
CATALYTIC REFORMING
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DESORPTION
ETHYLENE
FORMALDEHYDE
FUELS
GASOLINE
HYDROCARBONS
HYDROXY COMPOUNDS
INFRARED SPECTRA
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FUELS
MASS SPECTROSCOPY
MATERIALS
METHANE
METHANOL
MINERALS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PROPYLENE
REFORMER PROCESSES
SPECTRA
SPECTROSCOPY
ZEOLITES