阶跃过渡应答法研究甲醇完全氧化反应动力学──反应机理及动力学参数的求取  

Study of kinetics for complete oxidation of methanol by step transient response method

作　　者：刘秀英[1] 黄晋阳[1] 熊辉[1] 李增和[1] 马丽景 王雪梅[1] 

机构地区：[1]北京化工大学应用化学系

出　　处：《北京化工大学学报（自然科学版）》1998年第1期77-81,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：在第一部分基础上，进一步研究了甲醇完全氧化反应过程中某些物种的行为，证实了甲醇在ＰｄＡｇ／Ａｌ２Ｏ３催化剂上的吸附是该反应的慢步骤，并提出了反应机理，用ＲｕｎｇｅＫｕｔａ法和修正的ＧａｕｓＮｅｗｔｏｎ法求取了各基元步骤的速率常数、活化能和指前因子等动力学参数。On the basis of section one,the behavior of some species in the complete oxidation reaction of methanol have been explored in this paper.The results showed that the process of adsorption of methanol on Pd Ag/Al 2O 3 catalyst was slow step for this reaction.The mechanism of the complete oxidation of methanol was suggested.The kinetic parameters of these elementary steps,sach as the rate constants,the activation energies,the preexponential factors were evaluated by Runge Kutta and Gauss Newton method.

关 键 词：催化剂 甲醇 完全氧化 反应机理 钯 银 氧化 

分 类 号：O623.411[理学—有机化学]