Separation process
AssigneeShell Oil Company
InventorJohn E. Gorman
Life of this patent
Estimating the term…
Abstract
Particulate solids are separated from their admixture with gases or vaporized liquids by passage through a specially designed cyclone separator wherein the solids are passed down the separator to a plate modified with a circumferential groove leading to a solids outlet, the plate also having a centrally located vertical member designed to minimize turbulent flow of the solids/vapor mixture and fouling of the apparatus.
Claims2
A process for the separation of polymeric particulate solids from their heated admixture with gases in a vertically-disposed cylindrical separator having an upper section and a lower section, said lower section terminating in an interior circumferential groove containing a tangentially-positioned solids outlet, which process comprises:
- a. injecting the admixture at a vapor velocity of at least about 700 feet per second through from a jet inlet positioned tangentially in said upper section;
- b. withdrawing the major portion of said gases through a gas outlet positioned in said upper section;
- c. passing the solids and residual portions of the gases in a tangential path down the inner surface of said cylindrical separator to a bottom plate communicating with said interior circumferential groove, said bottom plate having centrally-positioned thereto a vertically-disposed means for reducing turbulence in the flow pattern of the solids and residual gases, said vertically disposed means having a water inlet for injection of water into the lower section of the separator;
- d. injecting water through said water inlet at a rate of between about 0.5 and 3.5 parts by weight per 100 parts by weight of solids;
- and
- e. withdrawing the solids through said tangentially-positioned solids outlet.
Dependencies are inferred from the claim text.