Relative Molecular Mass Distribution Oriented Kinetic Model of 1-Decene Continuous Oligomerization Process
1. State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China;
2. Institute of Zhejiang University-Quzhou, Quzhou 324000, China;
3. Daqing Petrochemical Research Center of Petrochina, Daqing 163714, China
Abstract：High-quality lubricants prepared from poly-alpha-olefins (PAO) are characterized by some performances such as high viscosity index, low-temperature mobility and superior anti-shear properties. A model of continuous oligomerization of 1-decene in two reactors with BF3/C2H5OH as catalyst was established, based on the elementary reactions that include the complexation equilibrium of BF3 with C2H5OH, the unequal activity chain growth reactions with polymerization degree less than 5, chain transfer to monomer, chain transfer to β-H chain and deactivation of catalyst. The kinetic constants and reaction activation energies of the elementary reactions were determined by the plant data of the outlet stream from the first reactor. And the model was validated with the plant data of C30/C40 mass fraction, monomer conversion number-average molecular weight, and weight-average molecular weight of the outlet stream from the second reactor. It was demonstrated that the established model could accurately calculate monomer conversion and product molecular weight in the oligomerization process of 1-decene under different process conditions with a relative error within 5%.
GU Xueping1,2,YUAN Shiyao1 et al. Relative Molecular Mass Distribution Oriented Kinetic Model of 1-Decene Continuous Oligomerization Process[J]. 化学反应工程与工艺, 2021, 37(1): 30-38.
