Method for monitoring feeds to catalytic cracking units by near-infrared spectroscopy
    1.
    发明申请
    Method for monitoring feeds to catalytic cracking units by near-infrared spectroscopy 审中-公开
    通过近红外光谱法监测催化裂化装置的进料的方法

    公开(公告)号:US20070212790A1

    公开(公告)日:2007-09-13

    申请号:US11656320

    申请日:2007-01-19

    IPC分类号: G01N33/00

    CPC分类号: G01N21/359 Y10T436/21

    摘要: A monitoring of catalytic cracking processing is provided which uses near infrared (NIR) analysis to characterize cracking feeds, intermediates and products for chemical and physical properties such as saturates, monoaromatics, diaromatics, triaromatics, tetraaromatics, polar aromatics, total aromatics, thiophenes, distillation points, basic nitrogen, total nitrogen, API gravity, total sulfur, MCRT and % coker gasoil and the resulting characterization thereof. The NIR results can be used in FCC simulation software to predict unit yields and qualities.

    摘要翻译: 提供催化裂化加工的监测,其使用近红外(NIR)分析来表征裂化进料,中间体和产物的化学和物理性质,例如饱和物,单芳烃,二芳族化合物,三芳族化合物,四芳族化合物,极性芳族化合物,总芳族化合物,噻吩,蒸馏 点,碱性氮,总氮,API比重,总硫,MCRT和焦化焦油汽油及其结果表征。 NIR结果可用于FCC模拟软件中,以预测单位产量和质量。

    Process and apparatus for analysis of hydrocarbon species by near
infrared spectroscopy
    2.
    发明授权
    Process and apparatus for analysis of hydrocarbon species by near infrared spectroscopy 失效
    通过近红外光谱分析烃类物质的方法和装置

    公开(公告)号:US5712481A

    公开(公告)日:1998-01-27

    申请号:US685364

    申请日:1996-07-23

    摘要: In addition to analysis in the infrared spectra of hydrocarbon group types, it has now been found that certain hydrocarbon species, including preferably aromatic species such as benzene, toluene, xylene, and alkyl benzenes such as ethyl benzene, can be determined by measuring absorption in certain selected wavelengths in the infrared spectra, then manipulating the data, e.g., preferably by taking the first or higher derivative, and applying statistical techniques, preferably multiple linear regression (MLR) to provide an output signal indicative of the concentration of the particular specie. The output signal can be used to control refinery and chemical processes, e.g., reforming, catalytic cracking, alkylation and isomerization. In manufacturing reformulated fuels, government regulations can be complied with by utilizing the invention to blend fuels which have a maximum of benzene or other regulated components.

    摘要翻译: 除了对烃基类型的红外光谱进行分析之外,现在已经发现,某些烃类,包括优选芳族物质如苯,甲苯,二甲苯和烷基苯如乙基苯可以通过测量吸收 红外光谱中的某些选定的波长,然后操纵数据,例如,优选地通过取第一个或更高的导数,以及应用统计技术,优选多重线性回归(MLR)来提供指示特定物种浓度的输出信号。 输出信号可用于控制炼油和化学过程,例如重整,催化裂化,烷基化和异构化。 在制造改性燃料时,可以通过利用本发明来混合具有最大苯或其他调节组分的燃料来满足政府规定。

    Gasoline RFG analysis by a spectrometer
    3.
    发明授权
    Gasoline RFG analysis by a spectrometer 失效
    汽油RFG分析仪

    公开(公告)号:US6140647A

    公开(公告)日:2000-10-31

    申请号:US994787

    申请日:1997-12-19

    IPC分类号: G01N21/35 G01N21/65 G01J3/42

    摘要: Reformulated gasoline (RFG) testing recently required by EPA involves measuring sulfur, olefin, aromatic contents, Reid Vapor Pressure (RVP), and benzene, distillation properties, plus total air pollutants (TAPs), volatile organic carbon (VOC), and nitrogen oxides (NOx). Measuring driveability, although not required, is desirable. All of these tests can be conducted by spectrometer, preferably in the IR range, more preferably in the NIR range, and most preferably by a single instrument operating at high-correlation wavelengths. Importantly, VOC, TAP, NOx, and RVP may be correlated to IR absorbance at certain bands. Statistical methods including PLS, MLR, PCR, and neural networks can be used and derivatives of first, particularly second, or other orders can be used. Results can be displayed on a single screen.

    摘要翻译: EPA最近要求的重组汽油(RFG)测试包括测量硫,烯烃,芳烃含量,里氏蒸气压(RVP)和苯,蒸馏性能,加上总空气污染物(TAP),挥发性有机碳(VOC)和氮氧化物 (NOx)。 虽然不需要测量驾驶性能是可取的。 所有这些测试可以通过光谱仪进行,优选在IR范围内,更优选在NIR范围内进行,最优选通过在高相关波长下工作的单个仪器进行。 重要的是,VOC,TAP,NOx和RVP可能与特定条件下的IR吸光度相关。 可以使用包括PLS,MLR,PCR和神经网络的统计方法,并且可以使用第一,特别是第二或其他顺序的导数。 结果可以显示在单个屏幕上。

    Method and apparatus for analysis of relative levels of biodiesel in fuels by near-infrared spectroscopy
    4.
    发明授权
    Method and apparatus for analysis of relative levels of biodiesel in fuels by near-infrared spectroscopy 失效
    通过近红外光谱分析燃料中生物柴油的相对水平的方法和装置

    公开(公告)号:US07404411B2

    公开(公告)日:2008-07-29

    申请号:US11088429

    申请日:2005-03-23

    IPC分类号: G05D11/13

    摘要: A process and system for the analysis and/or control of a mixture of liquid hydrocarbons and biodiesel to determine biodiesel concentration includes a) measuring the near infrared absorption in at least two of the bands of two absorption bands from a portion of the range of 800-2500 nm; in particular 1100-2500 nm which are used to quantify the biodiesel content. b) taking each of the absorbances measured, or a mathematical function thereof, c) performing at least one mathematical computing or statistical treatment using the above absorbances or functions as individual independent variables, d) assigning and applying weighting constants or their equivalents to the independent variables, and, optionally e) applying the above steps using known compositions to calibrate the instrument and determine the weighting constants or equivalents, and further optionally f) outputting a signal indicative of the biodiesel concentration in the mixture, based on the absorbances or functions.

    摘要翻译: 用于分析和/或控制液体烃和生物柴油混合物以确定生物柴油浓度的方法和系统包括:a)从800个范围的一部分测量两个吸收带的至少两个带中的近红外吸收 -2500nm; 特别是1100-2500nm,用于量化生物柴油含量。 b)取每个测量的吸光度或其数学函数,c)使用上述吸收或函数作为独立变量进行至少一个数学计算或统计处理,d)分配和应用加权常数或其等价物到独立的 变量以及可选地e)使用已知组合物应用上述步骤来校准仪器并确定加权常数或等同物,并且还可选地f)基于吸光度或功能输出指示混合物中生物柴油浓度的信号。

    Process for analysis of asphaltene content in hydrocarbon mixtures by
middle infrared spectroscopy
    5.
    发明授权
    Process for analysis of asphaltene content in hydrocarbon mixtures by middle infrared spectroscopy 失效
    通过中红外光谱分析烃混合物中沥青质含量的方法

    公开(公告)号:US06087662A

    公开(公告)日:2000-07-11

    申请号:US83913

    申请日:1998-05-22

    IPC分类号: G01N21/35 G01N33/26 G01N33/28

    摘要: Asphaltene concentration of a hydrocarbon feed is measured by IR spectroscopy using mid-range IR frequencies between 3800 cm.sup.-1 and 650 cm.sup.-1 (corresponding to wavelengths between 2630 nanometers (nm) and 15,380 nm) together with mathematical techniques and statistical techniques in which measurements of absorption are made, and combines these with multiple regression analysis, or other statistical technique and modeling to determine asphaltene concentration. The output signal can be used to control refinery and chemical processes, e.g., atmospheric crude column, vacuum distillation column, solvent deasphalting and visbreaking.

    摘要翻译: 烃进料的沥青质浓度通过IR光谱法使用在3800cm-1至650cm -1(对应于2630nm(nm)和15,380nm之间的波长)的中等范围IR频率以及数学技术和统计技术来测量,其中 进行吸收测量,并结合这些与多元回归分析或其他统计技术和建模来确定沥青质浓度。 输出信号可用于控制炼油和化学过程,例如常压粗塔,真空蒸馏塔,溶剂脱沥青和减粘裂化。

    Method and apparatus for controlling catalytic cracking by near-infrared spectroscopy
    6.
    发明申请
    Method and apparatus for controlling catalytic cracking by near-infrared spectroscopy 审中-公开
    用近红外光谱法控制催化裂化的方法和装置

    公开(公告)号:US20080078695A1

    公开(公告)日:2008-04-03

    申请号:US11541340

    申请日:2006-09-29

    IPC分类号: C10G11/00

    CPC分类号: C10G11/187

    摘要: On-line controlling of catalytic cracking processing is provided which uses near infrared (NIR) analysis to characterize cracking feed for parameters such as saturates, aromatics, and thiophene content and the resulting characterization thereof. The NIR results can be used in FCC software to control on-line unit yields and qualities.

    摘要翻译: 提供了在线控制催化裂化加工,其使用近红外(NIR)分析来表征饱和物,芳族化合物和噻吩含量等参数的裂化进料及其所得的表征。 NIR结果可用于FCC软件来控制在线单位产量和质量。

    Method and apparatus for controlling FCC effluent with near-infrared spectroscopy
    7.
    发明申请
    Method and apparatus for controlling FCC effluent with near-infrared spectroscopy 审中-公开
    用近红外光谱法控制FCC流出物的方法和装置

    公开(公告)号:US20080078694A1

    公开(公告)日:2008-04-03

    申请号:US11541339

    申请日:2006-09-29

    IPC分类号: C10G11/00

    CPC分类号: C10G11/187

    摘要: On-line controlling of catalytic cracking processing is provided which uses near infrared (NIR) analysis to characterize FCC effluent and the resulting characterization thereof. The NIR results can be used in FCC software to control on-line unit yields and qualities.

    摘要翻译: 提供在线控制催化裂化加工,其使用近红外(NIR)分析来表征FCC流出物及其结果。 NIR结果可用于FCC软件来控制在线单位产量和质量。

    Method and apparatus for controlling FCC hydrotreating by near-infrared spectroscopy
    8.
    发明申请
    Method and apparatus for controlling FCC hydrotreating by near-infrared spectroscopy 审中-公开
    通过近红外光谱法控制FCC加氢处理的方法和装置

    公开(公告)号:US20080078693A1

    公开(公告)日:2008-04-03

    申请号:US11541337

    申请日:2006-09-29

    IPC分类号: C10G11/00

    CPC分类号: C10G11/187

    摘要: On-line controlling of FCC hydrotreating is provided which uses near infrared (NIR) analysis to characterize cracking feed for parameters and the resulting characterization thereof. The NIR results can be used in FCC hydroteating software to control on-line unit yields and qualities.

    摘要翻译: 提供FCC加氢处理的在线控制,其使用近红外(NIR)分析来表征参数的裂化进料及其所得的表征。 NIR结果可用于FCC加氢软件以控制在线单位产量和质量。