Pore Structure Characterization of Polyethylene Catalysts by N_2 isothermal Adsorption Method*

摘要

The pore structure of hte silica support and catalyst of gas phase polyethylene process has been studied by N_2 isothermal adsorption. Two-side-opened cylindrical mesopore was found to be the pore structure characteristic of both support and catalyst. There is a critical catalytic supporting amount 26.8