Isomerization kinetics of C5 and C6 olefins in FCC light gasoline over LNEH-1 Ni-based catalyst was studied in a tubular trickle-bed reactor under the conditions of 1.5 MPa, 313-333 K and LHSV 15-30 h l. The results showed that, there was no skeletal isomerization, only double bond isomerization and cis-trans isomerization occurred under the experimental conditions. All the double-bond isomerization reaction orders of 1-pentene, 3 -methyl- 1-butene, 2-methyl-l-butene and 1-hexene over LNEH-1 Ni-based catalyst are 1, which indicates that the isomerization reaction rates are proportional to the concentration of olefins, and the isomerization activation energies are 27.60, 42.24, 79.62 and 27.71 kJ/tnol, respectively. With the increase of carbon number of the olefins, the isomerizations become difficult, and the isomerizations of the branched-chain olefins are more difficult than those of the straight-chain olefins with the same carbon number. The kinetics models were obtained and the error between the calculated and experimental 1-pentene conversions was less than 10%.%采用管式滴流床反应器,在反应压力1.5 MPa、反应温度313～333 K、液态空速15～30 h-1的范围内,对C5和C6烯烃在LNEH-1镍基催化剂上的异构反应进行了研究.实验结果表明,烯烃只发生双键异构和顺反异构,没有发生骨架异构；1-戊烯、3-甲基-1-丁烯、2-甲基-1-丁烯、1-己烯双键异构反应对烯烃浓度的反应级数均为1,异构反应表观活化能分别为27.60,42.24,79.62,27.71 kJ/mol;随烯烃碳数的增加,异构反应阻力增大,同碳数支链烯烃比直链烯烃更难异构化；由实验数据的拟合得到烯烃异构反应动力学方程,1-戊烯转化率的计算值与实验值的相对偏差基本在10％以内,烯烃异构反应动力学方程可用于反应过程模拟和反应器的设计.
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