公开(公告)号：AU2019210517A1

公开(公告)日：2019-08-15

申请号：AU2019210517

申请日：2019-07-30

Applicant: STAMICARBON

Inventor： HIGGINS BRIAN SAYRE ,  TATE III JOHN MARSHALL ,  YATES ROBERT ARTHUR ,  POMERLEAU MARCEL JULIEN ,  HEON JON MICHAEL ,  DIRKX WILFRIED MARC RENAAT ,  COLOMA GONZÁLEZ JUAN

IPC: B01D47/06 ,  B01D47/10 ,  B01D53/58 ,  C05C9/00 ,  C07C273/16

Abstract: SUBMICRON PARTICLE REMOVAL FROM GAS STREAMS Abstract Disclosed are methods and systems for removing submicron particles from a gas stream, in particular from urea prilling off-gas, wherein a Venturi ejector is used. A method comprises contacting a gas stream containing submicron particles in a Venturi ejector with an injected high velocity scrubbing liquid to provide a pumping action, wherein the scrubbing liquid has an initial velocity of at least 25 m/s and wherein the ratio of scrubbing liquid and gas flow is between 0.0005 and 0.0015 (m3 /h) / (m/h). The disclosure also pertains to a prilling tower having a gas stream treatment system comprising a Venturi ejector at the top of the prilling tower, and to a method of modifying an existing prilling tower.