文献类型：期刊文献

英文题名：Simulation and Optimization of Industrial Reactors for Dehydrogenation of Heavy Paraffins with Different Carbon Numbers

作者：Jiang, Hongbo[1];Du, Xiangzhou[1];Zhou, Liqun[2];Wang, Yu[2];Tang, Jie[2]

机构：[1]East China Univ Sci & Technol, Res Inst Petr Proc, Shanghai 200237, Peoples R China;[2]Lab Plant Jinling Petrochem Corp Sinopec, Nanjing 210046, Peoples R China

年份：2022

卷号：36

期号：2

起止页码：991

外文期刊名：ENERGY & FUELS

收录：;EI(收录号：20220311473636);WOS:【SCI-EXPANDED(收录号:WOS:000740447600001)】；

语种：英文

外文关键词：Quadratic programming - Reaction kinetics - Paraffins - Catalyst activity - Carbon - Dehydrogenation

摘要：The dehydrogenation of heavy paraffins is an important process for the production of linear alkyl benzene. In this paper, a one-dimensional pseudohomogeneous model for a adiabatic radial reactor is used to simulate an industrial dehydrogenation reactor. Combined with 17-lumped intrinsic reaction kinetics over the NDC-10 (Pt/gamma-Al2O3 type) dehydrogenation catalyst, the industrial dehydrogenation double-ring radial reactor model was deduced, and the catalyst deactivation model was established as well. The kinetic parameters were optimized by a Sequential Quadratic Programming (SQP) method, and the catalyst deactivation parameters were estimated by fitting the trend of catalyst activity. The results showed that there is good agreement between the calculated value and actual value. The effect of different operating conditions on the reaction system was investigated. According to the established catalyst deactivation model, operating conditions were reasonably adjusted to increase the yield of the desired product or extend the usage time of the catalyst, which can provide guidance for industrial production.