| 摘要 |
The invention aims at keeping the lubrication properties of a fuel oil containing dimethyl ether as the main component at a high level and thereby making dimethyl ether commercially serviceable as a fuel oil, thus providing fuel oils largely contributing to environmental conservation, lubricants for such oils, and productive facilities for the oils. The fuel oil of the invention comprises dimethyl ether and at least one member selected from among vegetable fats and oils and derivatives thereof. Examples of the vegetable fats and oils include coconut oil, palm oil and so on, while those of the derivatives include mono- to poly-hydric alcohol esters of the constituent fatty acids of the above vegetable fats and oils, adducts of these esters with alkylene oxides, and adducts of the constituent fatty acids with alkylene oxides. The lubricant of the invention for fuel oils containing dimethyl ether as the main component consists of at least one member selected from among the above vegetable fats and oils and derivatives thereof.
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