Fuel 216 (2018) 686–696 Contents lists available at ScienceDirect Fuel journal homepage: www.elsevier.com/locate/fuel Full Length Article Simulation and optimization of ﬁxed bed solid acid catalyzed isobutane/2- butene alkylation process You Li, Ruixia Liu, Guoying Zhao, Zhimao Zhou, Junping Zhang, Chunyan Shi, Xiaomin Liu, Xiangping Zhang, Suojiang Zhang Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: The isobutane/2-butene alkylation process using ﬁxed bed arrays as reactors and β-zeolite as the catalyst is Solid acid catalyzed alkylation simulated and analyzed. By employing the Lagrange’s method, numerical problems that originate from nonlinear Fixed bed reactions and Eulerian girds are neutralized. Sensitivity of operating parameters on process performance are Non-linear reaction discussed, such as paraﬃn/oleﬁne ratio, alkylate reﬂux ratio and liquid velocity. It is found that larger paraﬃn/ Lagrange’s method oleﬁne is required for greater oleﬁne to alkylate selectiviy. And alkylate reﬂux is also necessary to save energy Process optimization cost in the distillation operations. Alternative conﬁgurations such as multiple inlet points and radical bed are discussed. To determine the optimal operating parameters, a techno-economical model is established and op- timized. In the
Fuel – Elsevier
Published: Mar 15, 2018
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