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2. 发明授权

US06274381B1 Method for invisibly tagging petroleum products using visible dyes 有权
标题翻译：使用可见染料不可见地标记石油产品的方法
公开(公告)号：US06274381B1
公开(公告)日：2001-08-14
申请号：US09188639
申请日：1998-11-09
申请人： Theodore D. Pauls , Susan I. Steuer , Brian A. Foley , Michael J. Denci , Haresh Doshi
发明人： Theodore D. Pauls , Susan I. Steuer , Brian A. Foley , Michael J. Denci , Haresh Doshi
IPC分类号： G01N3700
CPC分类号： C10L1/003 , C09B67/0041 , C09B67/0083 , C10L1/223 , C10L1/226 , G01N33/2882 , Y10T436/13
摘要： This invention provides a method for invisibly tagging, for subsequent identification purposes, various liquid petroleum hydrocarbons, such as crude oil, diesel fuel, heating oil, kerosene, lubricating oils, waxes, jet fuel, and in particular gasoline, remarkably using visible dyes by incorporating therein one or more visible dyes at minute levels such that they cannot be visually detected by the human eye. Visible dyes which have high solubility in petroleum hydrocarbons and maximum absorption in the 550-700 nm visible wavelength range are used to impart such invisible markings. The visible dyes, although employed at non-visible levels, are still capable of detection in a relatively quick and simple manner which requires minimal instrumentation, creates no waste products for disposal, and gives true quantitative results of dye concentrations in the field. This invention, therefore, further provides a method for so identifying the tagged petroleum hydrocarbons by exposing the tagged hydrocarbon to visible light having wavelengths in the portion of the spectrum utilized and detecting and quantifying the presence of the dyes in the tagged product from their characteristic absorption with available absorption detection equipment sensitive in this spectral region. This invention also provides visible dye compositions particularly appropriate for said invisible tagging.
摘要翻译：本发明提供了一种用于随后识别目的的各种液体石油烃，例如原油，柴油燃料，加热油，煤油，润滑油，蜡，喷气燃料，特别是汽油的显着地使用可见染料的方法，在其中掺入一种或多种可见染料，使得它们不能被人眼目视检测。使用在石油烃中具有高溶解度且在550-700nm可见波长范围内具有最大吸收的可见染料赋予这种不可见的标记。可见染料虽然以不可见的水平使用，仍然能够以相对快速和简单的方式进行检测，这需要最少的仪器仪表，不会产生废弃物进行处理，并且可以提供现场染料浓度的真实定量结果。因此，本发明还提供了一种用于通过将标记的烃暴露于具有所使用的光谱部分中的波长的可见光并通过其特征吸收检测和定量标记产物中染料的存在来鉴定标记的石油烃的方法具有在该光谱区域敏感的可用吸收检测设备。本发明还提供了特别适用于所述不可见标记的可见染料组合物。

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