A method for Controlling the size of the drops of liquid Catalyst into a gas phase polymerization Reactor and a method to control the size of Catalyst Particle sumInistrado to a polymerisation reactor in gas phase.

摘要

A method for controlling the volume of liquid catalyst drops entering a gas-phase polyurethane reactor includes using an anesthetic nozzle to provide a liquid catalyst with an effective catalyst quantity to the gas-phase polyurethane reactor. Catalyst particles provided to gas-phase polyamide reactor include catalyst provided by gas and liquid. Viscosity, surface tension and liquid density shall be considered when selecting gas and liquid,The gas density and its relative flux ratio are close to the required particle size according to equation (I).In East Germany 32, the diameter of the liquid drop comes out of the orifice in microns; rhol is g / cm3 of the liquid density; Rho is eng / cm3 of the gas density; Omicron is the surface tension of D / cm3; micro is CP (1 CP = 100g / cm3 s) of the liquid content,dL is the thickness of the liquid film in the hole wall in cm; dA is the diameter of the gas core at the center of the hole in cm; ALR is the flow relationship between the mass of liquid and gas; sr is the ratio of displacement or velocity of gas and liquid; Alpha is the fraction of gas volume in the hole.