论文部分内容阅读
抽检看品质我国汽油现行标准与国外标准比较燃油抽检测试结果(汽油)车用汽油共抽取90个油样,其中车用汽油74个,合格样品11个,合格率仅为14.9%;车用乙醇汽油16个,合格样品为2个,合格率为12.5%。辛烷值合格率为74.4%。辛烷值偏低,易使发动机产生爆震,汽油燃烧不充分,功率下降,油耗增大,还会造成发动机气缸和油嘴积炭增加,使尾气排放劣化,甚至导致发动机严重故障。甲醇含量合格率只有28.4%。甲醇具有腐蚀性,它会引起燃油系统中金属的腐蚀、橡胶和弹性体的分解。未经改造的汽油
Sampling to see the quality of China’s current standards of gasoline and foreign standards Comparing the fuel sampling test results (gasoline) car gasoline extraction of a total of 90 samples, of which 74 gasoline vehicles, 11 qualified samples, the passing rate of only 14.9%; vehicle ethanol Gasoline 16, two qualified samples, with a pass rate of 12.5%. The octane rating of 74.4%. Occasional low octane number, engine detonation easily, insufficient combustion of gasoline, power loss, fuel consumption increases, but also lead to increased engine cylinder and nozzle coke, exhaust emissions deterioration, and even lead to serious engine failure. Methanol content pass rate of only 28.4%. Methanol is corrosive and can cause corrosion of metals in the fuel system, decomposition of rubber and elastomers. Unreconstructed gasoline