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    • 1. 发明授权
    • Method for analyzing aqueous ammonium carbamate solution, and method for operating unreacted gas absorber
    • 用于分析氨基甲酸铵水溶液的方法和操作未反应的气体吸收剂的方法
    • US08663995B2
    • 2014-03-04
    • US13321529
    • 2010-05-12
    • Eiji SakataKenji YoshimotoShuhei Nakamura
    • Eiji SakataKenji YoshimotoShuhei Nakamura
    • F17D3/00G01N33/18G01N33/00
    • C07C273/04Y10T137/0318Y10T436/173845Y10T436/175383
    • There are provided a method for analyzing an aqueous ammonium carbamate solution whereby the composition of an unreacted-gas absorber outlet liquid can be specified in real time, and a method for operating an unreacted gas absorber by use of the same. The method for analyzing the composition of an aqueous ammonium carbamate solution includes determining ammonia component concentration, carbon dioxide component concentration, and water concentration of the aqueous ammonium carbamate solution, which is the unreacted-gas absorber outlet liquid in a urea production process, by using a correlation among viscosity, temperature, and carbon dioxide component concentration of the aqueous solution and a correlation among density, temperature, ammonia component concentration, and carbon dioxide component concentration of the aqueous solution, wherein the ammonia component concentration is a concentration of a sum of free ammonia and equivalent ammonia of ammonium carbamate which are contained in the aqueous solution, and the carbon dioxide component concentration is a concentration of equivalent carbon dioxide of ammonium carbamate contained in the aqueous solution.
    • 提供了一种用于分析氨基甲酸铵水溶液的方法,其中可以实时指定未反应气体吸收剂出口液体的组成,以及使用该方法操作未反应的气体吸收剂。 用于分析氨基甲酸铵水溶液的组成的方法包括在尿素生产过程中测定作为未反应气体吸收剂出口液体的氨基甲酸铵水溶液的氨组分浓度,二氧化碳组分浓度和水浓度,通过使用 水溶液的粘度,温度和二氧化碳组分浓度之间的相关性以及水溶液的密度,温度,氨组分浓度和二氧化碳组分浓度之间的相关性,其中氨组分浓度是 游离氨和氨水溶液中的氨基甲酸铵等量的氨,二氧化碳成分浓度是水溶液中含有的氨基甲酸铵的二氧化碳当量浓度。
    • 2. 发明申请
    • METHOD FOR ANALYZING AQUEOUS AMMONIUM CARBAMATE SOLUTION, AND METHOD FOR OPERATING UNREACTED GAS ABSORBER
    • 用于分析水溶性氨基甲酸铵溶液的方法和操作无气体吸收剂的方法
    • US20120060931A1
    • 2012-03-15
    • US13321529
    • 2010-05-12
    • Eiji SakataKenji YoshimotoShuhei Nakamura
    • Eiji SakataKenji YoshimotoShuhei Nakamura
    • F17D3/00G01N33/18
    • C07C273/04Y10T137/0318Y10T436/173845Y10T436/175383
    • There are provided a method for analyzing an aqueous ammonium carbamate solution whereby the composition of an unreacted-gas absorber outlet liquid can be specified in real time, and a method for operating an unreacted gas absorber by use of the same. The method for analyzing the composition of an aqueous ammonium carbamate solution includes determining ammonia component concentration, carbon dioxide component concentration, and water concentration of the aqueous ammonium carbamate solution, which is the unreacted-gas absorber outlet liquid in a urea production process, by using a correlation among viscosity, temperature, and carbon dioxide component concentration of the aqueous solution and a correlation among density, temperature, ammonia component concentration, and carbon dioxide component concentration of the aqueous solution, wherein the ammonia component concentration is a concentration of a sum of free ammonia and equivalent ammonia of ammonium carbamate which are contained in the aqueous solution, and the carbon dioxide component concentration is a concentration of equivalent carbon dioxide of ammonium carbamate contained in the aqueous solution.
    • 提供了一种用于分析氨基甲酸铵水溶液的方法,其中可以实时指定未反应气体吸收剂出口液体的组成,以及使用该方法操作未反应的气体吸收剂。 用于分析氨基甲酸铵水溶液的组成的方法包括在尿素生产过程中测定作为未反应气体吸收剂出口液体的氨基甲酸铵水溶液的氨组分浓度,二氧化碳组分浓度和水浓度,通过使用 水溶液的粘度,温度和二氧化碳组分浓度之间的相关性以及水溶液的密度,温度,氨组分浓度和二氧化碳组分浓度之间的相关性,其中氨组分浓度是 游离氨和氨水溶液中的氨基甲酸铵等量的氨,二氧化碳成分浓度是水溶液中含有的氨基甲酸铵的二氧化碳当量浓度。
    • 4. 发明申请
    • METHOD FOR MEASURING SCATTERING ABSORBER AND DEVICE FOR MEASURING SCATTERING ABSORBER
    • 用于测量散射吸收器的方法和用于测量散射吸收器的装置
    • US20110224931A1
    • 2011-09-15
    • US13130117
    • 2009-09-01
    • Kenji YoshimotoKazuyoshi OhtaDaisuke YamashitaHiroaki Suzuki
    • Kenji YoshimotoKazuyoshi OhtaDaisuke YamashitaHiroaki Suzuki
    • G06F19/00
    • A61B5/0091A61B5/0059A61B5/4312G01N21/4795
    • Acquired is the internal information of a scattering medium more accurately and easily, with the influence of an instrumental function taken into account, even where noise is contained in a measurement waveform.In a method for measuring a scattering medium, pulse light with a predetermined wavelength is made incident on a scattering medium which is a measurement object and a scattering medium for reference (S01b, S02b), the pulse light transmitted inside each of the scattering media is detected to acquire a light detection signal (S01c, S02c), the measurement waveform is acquired on the basis of the detected light detection signal (S01d, S02d), a parameter of a function showing the theoretical waveform of the measurement object is specified in such a manner that the result of convolution operation on the theoretical waveform of the measurement object and the measurement waveform of the reference is made equal to the result of convolution operation on the theoretical waveform of the reference and the measurement waveform of the measurement object (S03), and calculation is made for the internal information of the scattering medium on the basis of the theoretical waveform shown by the function (S04).
    • 即使在测量波形中包含噪声的情况下,也可以考虑到仪器功能的影响,更准确,更容易地获取散射介质的内部信息。 在用于测量散射介质的方法中,将具有预定波长的脉冲光入射到作为测量对象的散射介质和用于参考的散射介质(S01b,S02b),在每个散射介质内传输的脉冲光为 检测以获取光检测信号(S01c,S02c)时,基于检测到的光检测信号(S01d,S02d)获取测量波形,表示测量对象的理论波形的函数的参数被指定 使对测量对象的理论波形的卷积运算结果和基准的测量波形的结果等于对基准的理论波形和测量对象的测量波形的卷积运算的结果(S03) ,并根据功能所示的理论波形对散射介质的内部信息进行计算( S04)。