大部分替代燃料(除植物油外),由于其辛烷值较高,而十六烷值较低,故适用于火花点燃式发动机,世界各国根据各自的资源情况纷纷采用替代燃料,现列举一二,以觑一般。巴西用甘蔗制酒精来代替汽油;新西兰用天然气制甲醇,作与汽油之混合燃料;南非用煤制造合成燃料;英国用煤直接液化制造芳香族汽油;德国、美国用甲醇作替代燃料;美国还用渗10％玉米制成的酒精作替代燃料;意大利燃用压缩天然气作气体 Most of the alternative fuels (except vegetable oil) are suitable for spark-ignited engines due to their higher octane number and lower cetane number. Countries all over the world use alternative fuels according to their own resources. To look at the general. Brazil uses sugar cane alcohol to replace gasoline; New Zealand uses natural gas to make gasoline as a mixed fuel with gasoline; South Africa uses synthetic coal to make fuels; UK uses liquefied coal to make aromatic gasoline; Germany and the United States use methanol as an alternative fuel; 10% corn infiltration made of alcohol as a substitute for fuel; Italy burning compressed natural gas as a gas