Olefins in gasoline
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I want to know what methods are used to analyze olefins in gasoline. **What is the current limit for olefins?** Please help, thank you
National Standard V gasoline requires that the olefin content be no more than 24% by volume. The arbitration detection method is the fluorescent indicator adsorption method; it is advisable to use imported indicators and silica gel. Or use multi-dimensional gas phase determination.
This post was last edited by qugd on 2017-2-24 22:51. To accurately analyze the olefins in gasoline, a full composition analysis or a group composition analysis is required. The analysis method uses gas chromatography. If analyzing total olefins, the fluorescent indicator method can be used. This analysis method uses column adsorption chromatography, and it complies with national standards as well as AS TM standards. If the relative content of olefins needs to be determined during the processing, its bromine value can be analyzed. This analytical method often employs the electrochemical microcoulometry or the bromine addition titration. **The standards for automotive gasoline specify particular limits regarding the olefin content; you can check the national standards for this information.
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