飽和脂肪酸エステルの熱分解 (第4報) : カプロン酸エチルの熱分解生成物

概要

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Ethyl caproate was pyrolyzed at 450, 500, 550, 600 and 650°C, respectively. Each component of the products was analyzed in detail, and the quantitative change in each component due to pyrolysis temperature was clarified. The thermal decomposition of ethyl caproate increased in amount with the rise of temperature. The tendency was very similar to that in the case of ethyl acetate. The temperature at which the pyrolysis gets to the maximum of more than 90% is 600°C in the case of ethyl acetate, and 550°C in the case of ethyl caproate. From the experiment, it is shown that ethyl caproate is easily decomposed at the lower temperature than ethyl acetate. The principal products in the pyrolysis of ethyl caproate were carbon monoxide, methane, ethane, ethylene, propane, propylene, carbon dioxide, caprone (diamyl ketone), caproic acid and C5-compounds. Among these products, caproic acid and ethylene showed a remarkable increase in amount with the rise of the pyrolysis temperature. Especially, ethylene showed an extraordinary increase in amount at 600°C. C5-compounds showed a slow decrease in amount with the rise of the pyrolysis temperature. On the contrary, carbon monoxide, methane, ethane and propane showed a remarkable decrease in amount at 600°C. Carbon dioxide, propylene and caprone were almost temperature-independent.
社団法人日本油化学会の論文