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    • 9. 发明授权
    • Diagnostic tool and process for assessing thermal urea gasification performance
    • 用于评估热尿素气化性能的诊断工具和过程
    • US08940543B2
    • 2015-01-27
    • US13463634
    • 2012-05-03
    • William H. SunJohn M. Boyle
    • William H. SunJohn M. Boyle
    • C01C3/14F23J15/00F23N5/00C01C1/02C01C1/08
    • C01C1/086C01C3/145F23J15/003F23J15/006F23J2215/50F23J2217/50F23J2219/10F23N5/003Y10T436/175383
    • Disclosed are methods and apparatus for treating and analyzing a gas stream to determine the effectiveness of urea gasification. The apparatus will be capable of performing the method and will include: means for introducing an aqueous solution of urea into a reactor having hot gases therein and subjecting the aqueous to temperatures for a time to assure the gasification of the aqueous urea and form a thermal gasification product stream containing NH3 and HNCO; means for taking a sample stream from the gasification product stream; means for contacting the sample stream with a hydrolysis catalyst in the presence of sufficient water to convert HNCO to NH3 and form an ammonia sample stream; and means for analyzing the ammonia sample stream for NH3. The methods and apparatus can also be used to control a urea gasification process and/or to signal anomalous operation.
    • 公开了用于处理和分析气流以确定尿素气化的有效性的方法和装置。 该设备将能够执行该方法,并且将包括:用于将尿素水溶液引入其中具有热气体的反应器中的装置,并使水温持续一段时间以确保尿素水溶液的气化并形成热气化 含NH3和HNCO的产品流; 用于从气化产物流中取样品流的装置; 用于在足够的水存在下使样品流与水解催化剂接触以将HNCO转化成NH 3并形成氨样品流的装置; 以及用于分析NH 3的氨样品流的装置。 该方法和设备也可用于控制尿素气化过程和/或发出异常操作信号。