PURPOSE:To obtain an additive which can be added to a methanol fuel to prevent the adhesion of a deposit to an injector nozzle or to enable the deposit to be removed even if adhered, by using a specified phenolic compound as the constituent. CONSTITUTION:A methanol fuel additive comprising a compound of the formula (wherein R1 is 3-18C alkyl; R2 is H or 3-18C alkyl). Examples of the compound of the formula include hexylphenol, nonylphenol, dodecylphenol, and dinonylphenol. This additive is readily soluble in a methanol fuel oil and has no adverse effect on various metals and resins; therefore, it can be added to a fuel oil for a methanol engine car to prevent the adhesion of a deposit to the injector nozzle or to enable the deposit to be removed by washing even if adhered. It is desirable to use ammonia and/or amine compound (preferably a 8-18C aliphatic amine in respect of a cleaning effect) in combination with the compound of the formula since the cleaning effect can thereby be improved further.
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机译：用途：通过使用指定的酚类化合物作为成分，获得可添加到甲醇燃料中的添加剂，以防止沉积物粘附到喷射器喷嘴上，或者即使沉积物粘附也能去除沉积物。组成：一种甲醇燃料添加剂，包括下式的化合物（其中R 1为3-18C烷基; R 2为H或3-18C烷基）。该式的化合物的实例包括己基苯酚，壬基苯酚，十二烷基苯酚和二壬基苯酚。该添加剂易溶于甲醇燃料油，对各种金属和树脂无不利影响;因此，可以将其添加到甲醇发动机汽车的燃料油中，以防止沉积物粘附到喷油嘴上，或者即使粘附也可以通过洗涤去除沉积物。期望将氨和/或胺化合物（就清洁效果而言优选为8-18C脂族胺）与下式的化合物组合使用，因为由此可以进一步提高清洁效果。
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