Combustion butane

Catalytic Hydrocarbon Combustion 1 [CHCC 1] Ceramic Micro Reactor for Butane Combustion... 

Pt/y-alumina wash-coat catalyst introduced by co-impregnation was used for butane combustion. After brief heating for 10 s, the reaction ignited and proceeded... 

The occurrence of parallel reactions, n-butane combustion, and oxidative degradation to give acetic and acrylic acids. These are characterized by higher activation energies than the main reaction. 

The implications of the previous statements, which are relevant to many experimental observations, are not included in our mechanistic considerations. These are focused only on the formation of MA from n-butane. Combustion of intermediates is not considered here. 

Following this study, Wilk et al. [230] simulated the composition-time profiles for selected alkenes and oxygenated products that were formed from n-butane and i-butane combustion, and also mixtures of these fuels, in a motored engine. An engine cycle was simulated within a spatially uniform zone of varying volume. The volume history was specified in such a way that the predicted pressure history matched the measured polytropic pressure history in non-reactive conditions. Composition profiles were compared with those measured experimentally. Some of the kinetic features that distinguish the reactivities of the two fuels and their modes of reaction involving alkylperoxy and dialkylperoxy radicals were elucidated in this work. The n-butane oxidation model had also been applied to the... 

A detailed kinetic model for n-butane combustion has also been reported by Kojima [234] comprising 700 reversible reactions. Although this may prove to be a useful development, it has not been the subject of chemical validation, having been used only to simulate ignition delays for n-butane in a shock tube and in a rapid compression machine. In the absence of complementary chemical tests, the prediction of ignition delay really constitutes an application rather than a test of a comprehensive kinetic scheme. 

U-shaped tubes are-fixed in a silicon substrate, while the remainder of the tube is kept floating to help thermally isolate it from the rest of the system and the floating end of the tubes are encased in silicon to enhance heat transfer between the tubes. The U shape allows flexibility for thermal expansion. Wash-coating was utilized to coat the channels with catalyst. Butane combustion was performed in one of the two tubes. Heat produced from this reaction was utilized to enhance ammonia reforming in the second tube. Yet another approach is described by Holladay et al. and is shown in Fig. proprietary catalyst on... 

Figure 17 shows the Arrhenius plots of the reaction rates of n-butane and CH4 oxidations over Lao.2Sro.8C01. . FeyC. The effects of the B-site composition were different depending on the reactants. The n-butane combustion activity increased as y= 1.0<0.6<0.8 <0.4, while the methane combustion was hardly affected by this substitution. 

The temperature range of these two reactions was different, 473-573 K for n-butane combustion and 623—773 K for methane combustion. On the other hand, the partial substitution of Fe for Co enhanced the oxygen desorption below 573 K, a desorption. The amount of O2 desorbed after a pretreatment at 300 K in O2 (table 22) for Lao.2Sro.8C01 - Fe Os (y 1) is clearly higher than that for Lao Sro sFeOo. It has turned... 

WARTH V., STEF N., GLAUDE P.A., BATTIN-LECLERC F., SCACCHI G., CoME G.M., Computer-aided derivation of gas-phase oxidation mechanisms application to the modeling of the oxidation of n-butane. Combustion and Flame, 114. 81 (1998). 

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