发明公开
EP2153880A1 Process and plant for the production of a urea solution for use in SCR process for reduction of Nox
审中-公开
方法和设备的生产中使用的尿素溶液在SCR方法以减少NOx的
- 专利标题： Process and plant for the production of a urea solution for use in SCR process for reduction of Nox
- 专利标题（中）： 方法和设备的生产中使用的尿素溶液在SCR方法以减少NOx的
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申请号： EP08013743.3申请日： 2008-07-31
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公开(公告)号： EP2153880A1公开(公告)日： 2010-02-17
- 发明人: Zardi, Federico
- 申请人： UREA CASALE S.A.
- 申请人地址： Via Giulio Pocobelli, 6 6900 Lugano-Besso CH
- 专利权人： UREA CASALE S.A.
- 当前专利权人： UREA CASALE S.A.
- 当前专利权人地址： Via Giulio Pocobelli, 6 6900 Lugano-Besso CH
- 代理机构： Zardi, Marco
- 主分类号： B01D53/79
- IPC分类号： B01D53/79 ; B01D53/90 ; C07C273/16
摘要：
A process and a plant for the preparation of an acqueous solution of urea suitable for use in a SCR process for nitrogen oxides removal, wherein the urea solution from the recovery section of a urea plant is subject to at least one step of evaporation, separating a vapour stream containing water and ammonia, and obtaining a concentrated and substantially ammonia-free solution, and said concentrated solution is diluted to the concentration of urea suitable for use in the SCR process.
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