利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN108137335A 用于汽车环保尿素和硝酸铵尿素的尿素的一体化生产 有权

用于汽车环保尿素和硝酸铵尿素的尿素的一体化生产
摘要：
公开了一种用于两种不同尿素产品的集成化生产的方法。一种是适用于减少NOx的尿素水溶液(通常表示为汽车环保尿素-DEF)。另一种是用作肥料的溶液，即硝酸铵尿素(UAN)。DEF和UAN的生产以如下的方式被集成：从尿素生产回收的氨被用作硝酸铵生产的进料。将来自尿素生产的至少部分尿素水流与硝酸铵混合以获得UAN。
摘要（英）：

Disclosed is a method for the integrated production of two different urea products. One is an aqueous urea solution suitable for use in NOx abatement (generally indicated as Diesel Exhaust Fluid—DEF). The other is a solution used as a fertilizer, viz. Urea Ammonium Nitrate (UAN). The production of DEF and UAN are integrated as follows: ammonia recovered from the production of urea is used as a feed to the production of ammonium nitrate. At least part of an aqueous urea stream from urea prodution, is mixed with ammonium nitrate so as to obtain UAN.

公开/授权文献
0/0