Formation pathway of various oxygenated compounds for the homogeneous oxidation of isopentane in the vapor phase

摘要

The homogeneous oxidation of isopentane was investigated in thevapor phase.The main products were oxygenated compounds (3-methyltetrahydorfuran,2-propyloxirane,2-ethyl-2-methyloxirane,2,2,3-trimethyloxirane,acetone and acetaldehyde) and isopentenes.The yields of oxygenated compounds and isopentenes depended on the residence time,indicating that the oxygenated compounds formed through isopentenes from isopentane.It is concluded from te results of thevapor-phase oxidation of isopentenes (3-methyl-1-butene,2-methyl-2-butene and 2-methyl-1-butene) that 3-methyltetrahy drofuran and 2-propyloxirane might be formed through 3-methyl-1-butene,2,2,3-trimethyloxirane and acetone through 2-methyl-1-butene in teh vapor-phase oxidationof isopentane.