Kinetics of methanol to olefins over AlPO4-bound ZSM-5 extrudates in a two-stage unit with dimethyl ether pre-reactor

Abstract The paper contributes to the clarification of the mechanism of one-dimensional pulsating detonation wave propagation for the transition regime with two-scale pulsations. For this purpose, a novel numerical algorithm has been developed for the numerical investigation of the gaseous pulsating detonation wave using the two-stage model of kinetics of chemical reactions in the shock-attached frame. The influence of grid resolution, approximation order and the type of rear boundary conditions on the solution has been studied for four main regimes of detonation wave propagation for this model. Comparison of dynamics of pulsations with results of other authors has been carried out.

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Overall crystallization kinetics of polymorphic propylene–ethylene random copolymers: A two-stage parallel model of Avrami kinetics

Polymer ◽

10.1016/j.polymer.2007.03.075 ◽

2007 ◽

Vol 48 (11) ◽

pp. 3170-3182 ◽

Cited By ~ 6

Author(s):

Y.L. Chiari ◽

M. Vadlamudi ◽

R. Chella ◽

K. Jeon ◽

R.G. Alamo

Keyword(s):

Crystallization Kinetics ◽

Random Copolymers ◽

Parallel Model ◽

Two Stage ◽

Avrami Kinetics ◽

Kinetics Of

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Mechanism and Kinetics of Methylating C6–C12 Methylbenzenes with Methanol and Dimethyl Ether in H-MFI Zeolites

ACS Catalysis ◽

10.1021/acscatal.9b00650 ◽

2019 ◽

Vol 9 (7) ◽

pp. 6444-6460 ◽

Cited By ~ 11

Author(s):

Mykela DeLuca ◽

Pavlo Kravchenko ◽

Alexander Hoffman ◽

David Hibbitts

Keyword(s):

Dimethyl Ether ◽

Mechanism And Kinetics ◽

Mfi Zeolites ◽

Kinetics Of

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Two-Stage Master Sintering Curve Approach to Sintering Kinetics of Undoped and Al2O3-Doped 8 Mol% Yttria-Stabilized Cubic Zirconia

Journal of the American Ceramic Society ◽

10.1111/j.1551-2916.2010.04199.x ◽

2010 ◽

Vol 94 (4) ◽

pp. 1053-1059 ◽

Cited By ~ 34

Author(s):

Xiaochao Song ◽

Jie Lu ◽

Tianshu Zhang ◽

Jan Ma

Keyword(s):

Two Stage ◽

Sintering Kinetics ◽

Cubic Zirconia ◽

Kinetics Of

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The kinetics and the mechanism of oxidative decarboxylation of benzilic acid by acidic permanganate (stopped-flow technique) An autocatalytic study

Canadian Journal of Chemistry ◽

10.1139/v04-102 ◽

2004 ◽

Vol 82 (9) ◽

pp. 1372-1380 ◽

Cited By ~ 13

Author(s):

Sairabanu A Farokhi ◽

Sharanappa T Nandibewoor

Keyword(s):

Activation Parameters ◽

Oxidative Decarboxylation ◽

Two Stage ◽

First Order ◽

First Order Kinetics ◽

Stage Process ◽

Benzilic Acid ◽

Reaction Constants ◽

Kinetics Of ◽

Good Agreement

The kinetics of the oxidation of benzilic acid by potassium permanganate in an acidic medium were studied spectrophotometrically. The reaction followed a two-stage process, wherein both stages of the reaction followed first-order kinetics with respect to permanganate ion and benzilic acid. The rate of the reaction increased with an increase in acid concentration. Autocatalysis was observed by one of the products, i.e., manganese(II). A composite mechanism involving autocatalysis has been proposed. The activation parameters of the reaction were calculated and discussed and the reaction constants involved in the mechanisms were calculated. There is a good agreement between the observed and calculated rate constants under different experimental conditions.Key words: oxidation, autocatalysis, benzilic acid, two-stage kinetics.

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