Abstract

A correlation between octane number and coking gasoline chemical composition is established on the basis of functional group and hydrocarbon type analysis obtained from 1H n.m.r. data. The method allows determination of octane number on a small sample (0.5 ml) in ~ 30 min. The same analysis provides data on aromatic and paraffinic hydrocarbon content as well as on structural characteristics. The method is particularly applicable to determination of octane number on gasoline samples obtained in laboratory research on the coking process, when the small sample size precludes the use of the standard engine method.

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