Kinetic model for methanol conversion to olefins

1983 ◽  
Vol 22 (3) ◽  
pp. 532-538 ◽  
Author(s):  
Raul Mihail ◽  
Sorin Straja ◽  
Gheorghe Maria ◽  
Gavril Musca ◽  
Grigore Pop
Keyword(s):  
Kinetic Model ◽  
Methanol Conversion

A kinetic model for methanol conversion to hydrocarbons

1983 ◽  
Vol 38 (9) ◽  
pp. 1581-1591 ◽  
Author(s):  
R. Mihail ◽  
S. Straja ◽  
Gh. Maria ◽  
G. Musca ◽  
Gr. Pop
Keyword(s):  
Kinetic Model ◽  
Methanol Conversion

Kinetic model for methanol conversion over Mg-ZSM-5 zeolite

1985 ◽  
Vol 28 (2) ◽  
pp. 437-441 ◽  
Author(s):  
N. I. Ionescu ◽  
B. Albu ◽  
I. Iosif ◽  
M. Bozeşanu ◽  
G. Musca ◽  
...  
Keyword(s):  
Kinetic Model ◽  
Methanol Conversion

Lumping analysis for the methanol conversion to olefins kinetic model

1988 ◽  
Vol 27 (12) ◽  
pp. 2218-2224 ◽  
Author(s):  
Octavian M. Iordache ◽  
Gheorghe C. Maria ◽  
Grigore L. Pop
Keyword(s):  
Kinetic Model ◽  
Methanol Conversion ◽  
Lumping Analysis

scholarly journals A Kinetic Model Considering Catalyst Deactivation for Methanol-to-Dimethyl Ether on a Biomass-Derived Zr/P-Carbon Catalyst

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 596
Author(s):  
Javier Torres-Liñán ◽  
Ramiro Ruiz-Rosas ◽  
Juana María Rosas ◽  
José Rodríguez-Mirasol ◽  
Tomás Cordero
Keyword(s):  
Kinetic Model ◽  
Dimethyl Ether ◽  
Catalyst Deactivation ◽  
Coke Formation ◽  
Methanol Conversion ◽  
The Other ◽  
Methanol Dehydration ◽  
Catalyst Activation ◽  
Other Hand ◽  
Adsorption Of Water

A Zr-loaded P-containing biomass-derived activated carbon (ACPZr) has been tested for methanol dehydration between 450 and 550 °C. At earlier stages, methanol conversion was complete, and the reaction product was mainly dimethyl ether (DME), although coke, methane, hydrogen and CO were also observed to a lesser extent. The catalyst was slowly deactivated with time-on-stream (TOS), but maintained a high selectivity to DME (>80%), with a higher yield to this product than 20% for more than 24 h at 500 °C. A kinetic model was developed for methanol dehydration reaction, which included the effect of the inhibition of water and the deactivation of the catalyst by coke. The study of stoichiometric rates pointed out that coke could be produced through a formaldehyde intermediate, which might, alternatively, decompose into CO and H2. On the other hand, the presence of 10% water in the feed did not affect the rate of coke formation, but produced a reduction of 50% in the DME yield, suggesting a reversible competitive adsorption of water. A Langmuir–Hinshelwood reaction mechanism was used to develop a kinetic model that considered the deactivation of the catalyst. Activation energy values of 65 and 51 kJ/mol were obtained for DME and methane production in the temperature range from 450 °C to 550 °C. On the other hand, coke formation as a function of time on stream (TOS) was also modelled and used as the input for the deactivation function of the model, which allowed for the successful prediction of the DME, CH4 and CO yields in the whole evaluated TOS interval.

"Kinetic model for methanol conversion to olefins" with respect to methane formation at low conversion. Reply to comments

1987 ◽  
Vol 26 (3) ◽  
pp. 637-638 ◽  
Author(s):  
Raul Mihail ◽  
Sorin Straja ◽  
Gheorghe Maria ◽  
Gavril Musca ◽  
Grigore Pop
Keyword(s):  
Kinetic Model ◽  
Methanol Conversion ◽  
Methane Formation
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