Gas phase benzene hydrogenation on a nickel-silica catalyst: IV. Rate equations and curve fitting
Gas phase benzene hydrogenation on a nickel-silica catalyst: IV. Rate equations and curve fitting
复制标题
镍-二氧化硅催化剂上的气相苯加氢：IV．
DOI：
10.1016/0021-9517(77)90131-2
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发表时间：
1977
影响因子：
7.3
通讯作者：
J. Coenen
中科院分区：
文献类型：
--
作者：
R. V. Meerten;J. Coenen
发现三种机制适合描述苯在镍-二氧化硅催化剂上的氢化：(i)具有速率确定步骤的机制，随后的加氢步骤更快； (ii)基于所有加氢步骤具有相同速率常数的假设的机制； (iii)在可调整数量的快速添加步骤之后具有一组缓慢步骤的机构。使用最小二乘非线性计算机拟合程序计算速率方程的参数值。对这些值进行了讨论。第二种机制似乎最适合描述苯的氢化。
Three mechanisms were found suitable to describe the hydrogenation of benzene on a nickel-silica catalyst: (i) a mechanism with a rate determining step, the following hydrogen addition steps being faster; (ii) a mechanism based on the assumption that all hydrogen addition steps have the same rate constant; and (iii) a mechanism with a set of slow steps after an adjustable number of fast addition steps. With a least squares nonlinear computer fit program values of parameters for the rate equations were calculated. These values are discussed. The second mechanism appeared to be the most suitable to describe the hydrogenation of benzene.