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用外循环流动无梯度反应器研究了Ｌａ＿２Ｏ＿３／ＳｉＯ＿２上丁烯－１异构化稳态及脉冲色谱动力学。随水分压ＰＨ＿２Ｏ的增加，丁烯－１异构化活性随之下降。丁烯－１异构化稳态动力学服从Ｌ－Ｈ机理动力学方程，可近似表示为一级速度方程。用脉冲法测得丁烯－１、２－丁烯及水的吸附热，实验值与正交设计法估计值一致。丁烯－１异构化脉冲色谱动力学服从一级反应的Ｂａｓｓｅｔｔ方程。用稳态法与脉冲法测定的丁烯－１异构成ｔ－２－丁烯和ｃ－２－丁烯相对活性及真反应活化能一致。
The isobaric steady state and pulse chromatography kinetics of butene-1 on La 2 O 3 / SiO 2 were investigated by external circulation flow without gradient reactor. With the increase of partial pressure PH 2 O, the isomerization activity of butene-1 decreased. The steady-state kinetics of isomerization of butene-1 obeys the kinetic equation of L-H mechanism and can be approximated as a first-order velocity equation. The buffered heat of butene-1,2-butene and water was measured by the pulse method. The experimental values are in good agreement with the orthogonal design method. The isobutylene-1 isomerization pulse-chromatography kinetics obeys the Bassett equation for the first order reaction. The steady-state method and pulse method were used to determine the relative activity and true reactivity of butene-1 isomerization to t-2-butene and c-2-butene.