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Middelburg et al., 2017 - Google Patents

Multi-domain spectroscopy for composition measurement of water-containing bio-ethanol fuel

Middelburg et al., 2017

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Document ID
9509763202192478977
Author
Middelburg L
De Graaf G
Bossche A
Bastemeijer J
Ghaderi M
Wolffenbuttel F
Visser J
Soltis R
Wolffenbuttel R
Publication year
Publication venue
Fuel Processing Technology

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Snippet

Measuring the ethanol/water ratio in biofuel of high ethanol content, such as E85, is important when used in a flex-fuel engine. A capacitive probe is generally used for measuring the ethanol/gasoline ratio. However, the water content in E85 biofuel cannot be …
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    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light
    • G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light for analysing liquids, e.g. polluted water
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    • G01N21/3581—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light using far infra-red light; using Terahertz radiation
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    • G01N27/22—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material by investigating capacitance
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    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
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    • G01N1/00—Sampling; Preparing specimens for investigation

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