초록 ▼

A fluidized bed reactor and operating process is disclosed, the reactor including a distributor plate to provide distribution of fluid passing upwardly into a fluidized bed; a mixing chamber positioned below the distributor plate; fluid entry conduits, preferably at the base of the reactor, for the

A fluidized bed reactor and operating process is disclosed, the reactor including a distributor plate to provide distribution of fluid passing upwardly into a fluidized bed; a mixing chamber positioned below the distributor plate; fluid entry conduits, preferably at the base of the reactor, for the passage of fluid into the reactor; and a flow deflector associated with the entry conduit for providing at least an upwardly fluid flow path and an outward fluid flow path along the wall of the mixing chamber to inhibit the accumulation of solids and liquid in the mixing chamber.

대표청구항 ▼

A fluidized bed polymerization reactor which comprises: A. a generally cylindrical vessel having a longitudinal axis: B. distributor plate means positioned in said vessel, generally perpendicular to said longitudinal axis of said vessel, defining a fluidized bed region above said distributor plate m

A fluidized bed polymerization reactor which comprises: A. a generally cylindrical vessel having a longitudinal axis: B. distributor plate means positioned in said vessel, generally perpendicular to said longitudinal axis of said vessel, defining a fluidized bed region above said distributor plate means and a mixing chamber region below said distributor plate means; C. inlet means for continuously introducing a stream of polymerizable fluids into said mixing chamber at a gas velocity sufficient to maintain particles in said fluidized bed region in suspended and fluidized condition; D. outlet means for continuously removing unreacted polymerizable gases from said fluidized bed region; E. catalyst injection means for introducing polymerization catalyst into said fluidized bed region; F. product removal means for removing solid particulate polymer product from said fluidized bed region; and G. at least one flow deflector means associated with said inlet means and being constructed and arranged with respect to said inlet means and being, adapted to divide said stream of polymerizable fluid flowing through said inlet means into two or more streams flowing in at least two fluid flow paths of which at least one flow path is directed upwardly and outwardly along the wall of said mixing chamber and at least one flow path is directed generally upwardly along a central axis of said mixing chamber, the division of said stream being such that the velocity of fluid flowing upwardly along the walls of said mixing chamber is sufficient to (1) entrain solid particles and liquid droplets and maintain particles in the fluid entrained and (2) inhibit the build-up of solid particulate polymer product on the wall of said mixing chamber and the velocity of fluid flowing upwardly along a central axis of said mixing chamber being sufficient to prevent solid particulate polymer product from falling into said inlet means; the accumulation of liquid in the said mixing chamber is also inhibited; and the combined overall velocity and direction of said fluid flowing in said flow paths being such that sufficient mixing is provided to ensure the general uniformity and distribution of polymerizable fluids entering the said fluidized bed region.