公开(公告)号：AU2021203662B2

公开(公告)日：2022-12-01

申请号：AU2021203662

申请日：2021-06-04

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: 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 (m/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.

公开(公告)号：AU2017262812A1

公开(公告)日：2018-12-06

申请号：AU2017262812

申请日：2017-05-09

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: 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 2 m/s and wherein the ratio of scrubbing liquid and gas flow is between 0.0005 and 0.0015 (m³/h) / (m³/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.

公开(公告)号：PL3016731T3

公开(公告)日：2018-07-31

申请号：PL14739266

申请日：2014-07-04

Applicant: STAMICARBON

Inventor： SOONS PETRUS CATHARINA GERLACH ,  DIRKX WILFRIED MARC RENAAT

IPC: B01D47/06 ,  B01D47/10 ,  C07C273/02

公开(公告)号：CA3023284A1

公开(公告)日：2017-11-16

申请号：CA3023284

申请日：2017-05-09

Applicant: STAMICARBON

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

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

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 2 m/s and wherein the ratio of scrubbing liquid and gas flow is between 0.0005 and 0.0015 (m³/h) / (m³/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.

公开(公告)号：MX2016000137A

公开(公告)日：2016-03-01

申请号：MX2016000137

申请日：2014-07-04

Applicant: STAMICARBON

Inventor： SOONS PETRUS CATHARINA GERLACH ,  DIRKX WILFRIED MARC RENAAT

IPC: B01D47/06 ,  B01D47/10 ,  C07C273/02

Abstract: Se describe un método para la eliminación de polvo de urea del gas residual de una sección de acabado (1) de una planta de producción de urea, el método comprende someter el gas residual a enfriamiento con agua (06) para producir gas residual enfriado, y someter el gas residual enfriado a depuración mediante el uso de al menos un depurador tipo Venturi (11); como resultado, se alcanza una menor caída de presión sobre el depurador, y un crecimiento más eficiente de las partículas de urea, que facilita la eliminación de éstas.

公开(公告)号：AU2014284776A1

公开(公告)日：2016-02-04

申请号：AU2014284776

申请日：2014-07-04

Applicant: STAMICARBON

Inventor： SOONS PETRUS CATHARINA GERLACH ,  DIRKX WILFRIED MARC RENAAT

IPC: B01D47/06 ,  B01D47/10 ,  C07C273/02

Abstract: Disclosed is a method for the removal of urea dust from the off- gas of a finishing section (1) of a urea production plant, the method comprises subjecting the off-gas to quenching with water (06) so as to produce quenched off-gas, and subjecting the quenched off-gas to scrubbing using at least one venturi scrubber (11). As a result, a lower pressure drop over the scrubber is attained, and a more efficient growth of urea particles, facilitating the removal thereof.

公开(公告)号：AU2020278868A1

公开(公告)日：2021-12-23

申请号：AU2020278868

申请日：2020-05-22

Applicant: STAMICARBON

Inventor： PUCI GIUSY ELISA ,  DIRKX WILFRIED MARC RENAAT

IPC: B01D47/05 ,  B01D47/06 ,  B01D47/10 ,  B01D47/12 ,  C07C273/16

Abstract: Disclosed is a urea finishing method including an off-gas treatment, the method comprising urea finishing and supplying the off-gas to a quenching zone and to a scrub column comprising a sump and a venturi stage, wherein the sump has a split sump configuration with two compartments.

公开(公告)号：AU2021203662A1

公开(公告)日：2021-07-01

申请号：AU2021203662

申请日：2021-06-04

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: 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 (m/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.

公开(公告)号：PL3454971T3

公开(公告)日：2020-11-30

申请号：PL17727414

申请日：2017-05-09

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

公开(公告)号：CA3141500A1

公开(公告)日：2020-11-26

申请号：CA3141500

申请日：2020-05-22

Applicant: STAMICARBON

Inventor： PUCI GIUSY ELISA ,  DIRKX WILFRIED MARC RENAAT

IPC: B01D47/06 ,  B01D47/05 ,  B01D47/10 ,  B01D47/12 ,  B01D53/14 ,  B01D53/18 ,  C07C273/16

Abstract: Disclosed is a urea finishing method including an off-gas treatment, the method comprising urea finishing and supplying the off-gas to a quenching zone and to a scrub column comprising a sump and a venturi stage, wherein the sump has a split sump configuration with two compartments.