Dynamic optimization of a novel radial-flow, spherical-bed methanol synthesis reactor in the presence of catalyst deactivation using Differential Evolution (DE) algorithm

In this work, a novel radial-flow spherical-bed methanol synthesis reactor has been optimized using Differential Evolution (DE) algorithm. This reactor's configuration visualizes the concentration and temperature distribution inside a radial-flow packed bed with a novel design for improving reactor performance with lower pressure drop. The dynamic simulation of spherical multi-stage reactors has been studied in the presence of long-term catalyst deactivation. A theoretical investigation has been performed in order to evaluate the optimal operating conditions and enhancement of methanol production in radial-flow spherical-bed methanol synthesis reactor. The simulation results have been shown that there are optimum values of the reactor inlet temperatures, profiles of temperatures along the reactors and reactor radius ratio to maximize the overall methanol production. The optimization methods have enhanced additional yield throughout 4 years of catalyst lifetime, respectively.

[1]  Riccardo Poli,et al.  Particle swarm optimization , 1995, Swarm Intelligence.

[2]  Lawrence J. Fogel,et al.  Artificial Intelligence through Simulated Evolution , 1966 .

[3]  H. Caram,et al.  The spherical reverse flow reactor , 2002 .

[4]  Ulrich Hoffmann,et al.  Investigation of simultaneous reaction of carbon monoxide and carbon dioxide with hydrogen on a commercial copper/zinc oxide catalyst , 1993 .

[5]  Dan Luss,et al.  Effect of flow direction on conversion in isothermal radial flow fixed‐bed reactors , 1981 .

[6]  Payam Parvasi,et al.  Dynamic modeling and optimization of a novel methanol synthesis loop with hydrogen-permselective membrane reactor , 2009 .

[7]  Sy-Ruen Huang,et al.  Optimizing circuit parameters of the biohydrogen real-time power generating system by genetic algorithm , 2008 .

[8]  Behdad Moghtaderi,et al.  A comparison of homogeneous and heterogeneous dynamic models for industrial methanol reactors in the presence of catalyst deactivation , 2005 .

[9]  Majid Baniadam,et al.  Incorporation of Flexibility in the Design of a Methanol Synthesis Loop in the Presence of Catalyst Deactivation , 2003 .

[10]  Behdad Moghtaderi,et al.  Operability of an industrial methanol synthesis reactor with mixtures of fresh and partially deactivated catalyst , 2005 .

[11]  Vladimir Hlavacek,et al.  Modeling of chemical reactors—XXV Cylindrical and spherical reaction with radial flow , 1972 .

[12]  M. Rahimpour,et al.  Enhancement of methanol production in a novel fluidized-bed hydrogen-permselective membrane reactor in the presence of catalyst deactivation , 2009 .

[13]  Rainer Storn,et al.  Differential Evolution – A Simple and Efficient Heuristic for global Optimization over Continuous Spaces , 1997, J. Glob. Optim..

[14]  Mohammad Reza Rahimpour,et al.  A Novel Radial‐Flow, Spherical‐Bed Reactor Concept for Methanol Synthesis in the Presence of Catalyst Deactivation , 2008 .

[15]  M. Khademi,et al.  A novel configuration for hydrogen production from coupling of methanol and benzene synthesis in a hydrogen-permselective membrane reactor , 2009 .

[16]  Payam Parvasi,et al.  Incorporation of Dynamic Flexibility in the Design of a Methanol Synthesis Loop in the Presence of Catalyst Deactivation , 2008 .

[17]  Mohammad Reza Rahimpour,et al.  Dynamic Simulation and Optimization of a Dual‐Type Methanol Reactor Using Genetic Algorithms , 2008 .

[18]  Abdolhossein Jahanmiri,et al.  Optimization of methanol synthesis reactor using genetic algorithms , 2005 .

[19]  Frerich J. Keil,et al.  Large-scale spherical fixed bed reactors: Modeling and optimization , 1993 .

[20]  Mohammad Reza Rahimpour,et al.  Dynamic optimization of membrane dual-type methanol reactor in the presence of catalyst deactivation using genetic algorithm , 2009 .

[21]  Mohammad Reza Rahimpour,et al.  Enhancement of carbon dioxide removal in a hydrogen-permselective methanol synthesis reactor , 2009 .

[22]  Mohammad Reza Rahimpour,et al.  Enhancement of hydrogen production in a novel fluidized-bed membrane reactor for naphtha reforming , 2009 .