Invention Grant
- Patent Title: Removal of dust in urea finishing
-
Application No.: US15536077Application Date: 2015-12-17
-
Publication No.: US10913025B2Publication Date: 2021-02-09
- Inventor: Cain Christopher Doherty , Aloysius Mechteldis Emmanuel Schoenmakers
- Applicant: Stamicarbon B.V.
- Applicant Address: NL Sittard
- Assignee: Stamicarbon B.V.
- Current Assignee: Stamicarbon B.V.
- Current Assignee Address: NL Sittard
- Agency: Morrison & Foerster LLP
- Priority: EP14199372 20141219
- International Application: PCT/NL2015/050873 WO 20151217
- International Announcement: WO2016/099267 WO 20160623
- Main IPC: B01D47/05
- IPC: B01D47/05 ; B01D47/06 ; B01D47/10 ; C05C9/00 ; C07C273/04 ; C07C273/02

Abstract:
Disclosed is a method for the removal of urea dust from the off-gas of a finishing section of a urea production plant. the method comprises subjecting the off-gas to quenching with water so as to produce quenched off-gas. The quenched off-gas is subjected to humidification by mixing said quenched gas stream with a humidification fluid selected from (a) saturated steam and (b) superheated steam mixed with a second aqueous stream, so as to produce a humidified gas stream, subjecting said humidified gas stream to particle separation (i.e., dust removal) by means of a scrubbing liquid in which at least part of the particles in the gas stream are soluble.
Public/Granted literature
- US20180326345A1 REMOVAL OF DUST IN UREA FINISHING Public/Granted day:2018-11-15
Information query