Invention Grant
- Patent Title: Process for the preparation of a urea-comprising aqueous stream
- Patent Title (中): 制备含尿素水溶液流的方法
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Application No.: US13754584Application Date: 2013-01-30
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Publication No.: US09346016B2Publication Date: 2016-05-24
- Inventor: Jozef Hubert Meessen
- Applicant: Jozef Hubert Meessen
- Applicant Address: NL Sittard
- Assignee: STAMICARBON B.V.
- Current Assignee: STAMICARBON B.V.
- Current Assignee Address: NL Sittard
- Agency: Nixon & Vanderhye P.C.
- Priority: NL1028497 20050309
- Main IPC: C07C273/02
- IPC: C07C273/02 ; C07C273/16 ; B01D53/92 ; B01D53/79 ; B01D53/90
Abstract:
The invention relates to process for the preparation of a urea-comprising aqueous stream, that is suitable for use in a unit for the reduction of NOx in combustion engine exhaust gases, wherein the urea-comprising aqueous stream is separated directly from or after a recovery section in a urea production process and is thereafter diluted with water until the urea-comprising stream comprises 30-35 wt % urea.
Public/Granted literature
- US20130207035A1 PROCESS FOR THE PREPARATION OF A UREA-COMPRISING AQUEOUS STREAM Public/Granted day:2013-08-15
Information query
