Invention Grant
- Patent Title: Removal of urea and ammonia from exhaust gases
- Patent Title (中): 从废气中去除尿素和氨
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Application No.: US14098496Application Date: 2013-12-05
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Publication No.: US09556077B2Publication Date: 2017-01-31
- Inventor: Jozef Hubert Meessen , Pantelis Orfanidis
- 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: EP09170447 20090916
- Main IPC: B01D47/00
- IPC: B01D47/00 ; C05C9/00 ; C01C1/12 ; C05C3/00 ; C07C273/16
Abstract:
The invention relates to a method for recovery of urea dust and ammonia from a gas stream by contacting said gas stream with an aqueous sulphuric acid solution, thus forming an acid solution of ammonium sulphate and urea, characterized in that the acid solution is concentrated to a melt comprising less than 5 wt % of water, which melt is subsequently transferred into solid particles comprising urea and ammonium sulphate.
Public/Granted literature
- US20140090433A1 REMOVAL OF UREA AND AMMONIA FROM EXHAUST GASES Public/Granted day:2014-04-03
Information query
