Effect of Temperature and Pressure on Stability of Metallocene Catalyst with Methyl Aluminoxane

Abstract

Catalysts are used to increase the rate of reactions. Metallocene catalyst is one such effective catalyst generally used to form polymers. The transition of monomers into metal sites at low pressure and temperature were observed in earlier work. Methyl aluminoxane (MAO) used as a catalyst for polymerization and propylene along with varying temperature and pressure. Optimized values of temperature and pressure are worked upon in this work through particle swarm optimization (PSO).Overall process consists of monomer initialization. This phase is termed as forming population for polymerization. Next phase includes population selection. This phase extract monomers based upon the crossover values. Multiple monomers are combined to generate new offspring that is used within next iteration. Metaheuristic approach includes multiple parameters tuning including temperature and pressure with each iteration. By varying the temperature and pressure new polymers are obtained that are stable in nature