75-65-0 Laser powered homogeneous pyrolysis of butane initiated by methyl radicals in a quasi-wall-free reactor at 750-1000 K

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The reaction of pure hydrocarbon systems at high temperatures (thermal pyrolysis) is important in chemical industry, combustion in power stations, waste incineration with incomplete combustion, carbon black industry, and pyrolytic hydrocarbon production. The pyrolysis of n-butane, initiated by methyl radicals was studied at 750-1000 K and 0.08-0.13 bar in the a quasi-wall-free reactor using laser heating by fast vibrational-translational energy transfer. The radial temperature distribution in the reactor was examined via stationary heat balance, optical absorption, pressure rise, and the temperature dependence of the rate of an isomerization reaction. GC-MS was used to analyze the products. Methyl radicals were formed through the fast thermal dissociation of di-tert-butyl peroxide. The reaction produced mainly C2H4, C3H6, and C3H8, while 1-C4H8, n-C5H12, and iso-C5H12 were minor components, all exhibiting a strong dependence on temperature. A kinetic model of 61 species and 164 reactions developed for the high-temperature butane and the low-temperature n-pentane oxidation was utilized to examine the product distribution and the temperature dependence. Experimental results agreed well with modeling results. https://www.lookchem.com/CASDataBase_75-65-0.htm

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