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去冬今春的雾霾天气,让人们对执行更高的机动车排放标准——“国五”标准有了更多的期盼。与现行的国家第四阶段机动车排放标准“国四”相比,“国五”将使我国汽车污染物总排放减少40%。这一标准已与欧洲目前的“欧五”标准相当。但执行“国五”有“两难”。一难在油上。目前我国的车用油品污染物标准是发达国家的3至5倍,如果按“国五”要求,接近发达国家的水平,我国炼油企业需进行技术改造。平均每加工1吨优质汽油,要消耗15～20千克标准油,这是一块很大的成本。另外,建成一套100万吨炼油装置,除了需要时间,还要投资两三亿元。
The hazy weather of winter and spring has given people more expectations for the implementation of a higher vehicle emission standard, the “National Five” standard. Compared with the fourth phase of the current national vehicle emission standards “country four ” compared to “national five ” will reduce the total emissions of automotive pollutants in China by 40%. This standard has been with the current European “five” standard. However, the implementation of “five” has “dilemma ”. Hard on the oil. At present, the standard of vehicle oil pollutants in our country is three to five times that of developed countries. If we press “” five "requirements, close to the level of developed countries, our country’s refining enterprises need to carry out technological transformation. An average of 1 ton of high-quality gasoline processing, to consume 15 to 20 kg of standard oil, this is a big cost. In addition, the completion of a set of 1 million-ton oil refinery will cost about two or three billion yuan in addition to the time it takes.