1-戊烯催化加氢反应本征动力学研究  

Intrinsic Kinetics of Catalytic Hydrogenation of 1-Pentene

作　　者：闫晓宇 王际东[1] 黄朝林 屈一新[1] YAN Xiao-yu;WANG Ji-dong;HUANG Chao-lin;QU Yi-xin(College of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学化学工程学院

出　　处：《北京服装学院学报（自然科学版）》2019年第2期43-48,共6页Journal of Beijing Institute of Fashion Technology：Natural Science Edition

摘　　要：采用固定床管式反应器,对镍系催化剂上1-戊烯的催化加氢反应本征动力学进行了研究。在消除了内外扩散的情况下,对处于反应稳定期的催化剂进行了1-戊烯催化加氢反应实验数据采集。本征动力学实验在2.0~3.0 MPa、353~413 K、氢气与原料物质的量比为4.09,正戊烷中1-戊烯的质量分数为5%~15%的条件下进行。以Levenberg-Marquardt和微分算法对幂函数形式表达的反应动力学方程参数进行拟合,建立了1-戊烯加氢反应动力学方程。该动力学方程对1-戊烯和氢气反应级数分别为0.813和0.858反应活化能为24 655 J/mol。The intrinsic kinetics of catalytic hydrogenation of 1-pentene on nickel-based catalyst was studied using a fixed-bed tubular reactor. The experimental data were collected at 2.0-3.0 MPa, 353-413 K, a molar ratio of hydrogen to 1-pentene of 4.09, and mass fraction of 1-pentene in n-pentane of 5% to 15% on aged catalyst which showed no noticeable deactivation and with the elimination of internal and external diffusion limit. The parameters of the reaction kinetic equation which was repressed by power function were evaluated by regression of the experimental data using Levanberg-Marquart method combined with differential algorithms. The reaction order on 1-pentene is 0.813, on hydrogen 0.858. The activation energy for 1-pentene conversion is 24 655 J/mol.

关 键 词：1-戊烯加氢 本征动力学 固定床 

分 类 号：O643.1[理学—物理化学]