| 摘要 |
The essential oils of Eupatorium capillifolium (Dogfennel) and Eupatorium compositifolium (Yankeeweed) may be isolated in unexpectedly high yield by steam distillation of the whole or leafy parts of the plants. Such oils may be used as motor fuels in gasoline and diesel engines in unrefined and refined form. Eupatorium oil is amenable to separation into lower boiling and higher boiling fractions better suited to gasoline and diesel fuel use, respectively. It is also amenable to refining by hydrogenation, dehydrogenation, reforming, cracking and alkylation of the whole oil or isolated components thereof.
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