PL419544A1 - Method for determination of the ageing degree of petrols and its application for the assessment of petrols quality - Google Patents

Method for determination of the ageing degree of petrols and its application for the assessment of petrols quality

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Publication number
PL419544A1
PL419544A1 PL419544A PL41954416A PL419544A1 PL 419544 A1 PL419544 A1 PL 419544A1 PL 419544 A PL419544 A PL 419544A PL 41954416 A PL41954416 A PL 41954416A PL 419544 A1 PL419544 A1 PL 419544A1
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PL
Poland
Prior art keywords
gasoline
determination
petrols
assessment
impedance
Prior art date
Application number
PL419544A
Other languages
Polish (pl)
Other versions
PL239942B1 (en
Inventor
Krzysztof Noworyta
Piotr Bocian
Paweł Bukrejewski
Krzysztof Biernat
Original Assignee
Instytut Chemii Fizycznej Polskiej Akademii Nauk
Przemysłowy Instytut Motoryzacji
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Application filed by Instytut Chemii Fizycznej Polskiej Akademii Nauk, Przemysłowy Instytut Motoryzacji filed Critical Instytut Chemii Fizycznej Polskiej Akademii Nauk
Priority to PL419544A priority Critical patent/PL239942B1/en
Publication of PL419544A1 publication Critical patent/PL419544A1/en
Publication of PL239942B1 publication Critical patent/PL239942B1/en

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Abstract

Przedmiotem wynalazku jest wyznaczanie stopnia starzenia benzyn, charakteryzujący się tym, że obejmuje następujące etapy: a)pobranie próbki badanej benzyny w wybranych punktach czasowych, korzystnie od 0 do 24 godzin, po czym b) dokonanie na otrzymanych próbkach pomiarów techniką elektrochemicznej spektroskopii impedancyjnej, przy częstotliwości z zakresu 1 mHz - 30 MHz, z uzyskaniem w wyniku widm impedancyjnych w postaci wykresu Nyquista tj. zależności wartości urojonej składowej impedancji Zim i wartości rzeczywistej składowej impedancji Zre, w funkcji częstotliwości zmiany potencjału w zakresie od 10 do 10V dla tej benzyny w czasie 0 i kolejnych punktach czasowych, c)poddanie analizie wyników pomiaru z etapu b) i dopasowanie ich do eksperymentalnych wyników widm z wyznaczeniem wartości następujących parametrów starzeniowych jak: oporność R, czas relaksacji, ? i pojemność C w badanej próbce benzyny. Przedmiotem wynalazku jest również zastosowanie wyznaczonych parametrów stopnia starzenia benzyn do oceny jakości benzyn.The subject of the invention is the determination of the gasoline aging degree, characterized in that it comprises the following stages: a) taking a sample of the tested gasoline at selected time points, preferably from 0 to 24 hours, then b) making measurements on the obtained samples by electrochemical impedance spectroscopy, using frequencies in the 1 mHz - 30 MHz range, resulting in the result of impedance spectra in the form of a Nyquist chart, i.e. the relationship between the imaginary value of the impedance component Zim and the actual value of the impedance component Zre, as a function of the frequency of potential change in the range of 10 to 10V for this gasoline over time 0 and subsequent time points, c) subjecting the analysis of the measurement results from stage b) and adapting them to the experimental results of spectra with determination of the values of the following aging parameters as: resistance R, relaxation time,? and capacity C in the gasoline sample tested. The invention also relates to the use of determined petrol aging parameters for the assessment of gasoline quality.

PL419544A 2016-11-22 2016-11-22 Method for determination of the ageing degree of petrols and its application for the assessment of petrols quality PL239942B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL419544A PL239942B1 (en) 2016-11-22 2016-11-22 Method for determination of the ageing degree of petrols and its application for the assessment of petrols quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL419544A PL239942B1 (en) 2016-11-22 2016-11-22 Method for determination of the ageing degree of petrols and its application for the assessment of petrols quality

Publications (2)

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PL419544A1 true PL419544A1 (en) 2018-06-04
PL239942B1 PL239942B1 (en) 2022-01-31

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PL419544A PL239942B1 (en) 2016-11-22 2016-11-22 Method for determination of the ageing degree of petrols and its application for the assessment of petrols quality

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PL (1) PL239942B1 (en)

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Publication number Publication date
PL239942B1 (en) 2022-01-31

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