ブテンの異性化および不均化速度の経時変化

概要

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Three kinds of butene isomers were fed into a fixed-bed reactor packed with Al2O3 or MoO3 on Al2O3. The isomerization of butene took place over both catalysts and the variations of the rate with time due to coke formation could be expressed by a dual-site decay reaction. The decay rate constants were almost independent of kinds of catalysts and butene isomers at the inlet. The disproportionation of butene did not cocur over Al2O3. However, when MoO3 on Al2O3 was used, mainly propylene and pentene were produced by the disproportionation reaction. This might be due to the enhancement of the shift reaction of double bond between 2-butene and 1-butene by MoO3. The variation of disproportionation rate with time could be represented by a single-site decay reaction, which was different from that of isomerization.
社団法人化学工学会の論文