Country Five Gasoline Standard: Help To Improve Air Condition

< p > < strong > sulfur content decreased by 80% < /strong > < /p >

< p > the five gasoline standard is compiled by experts from the National Standardization Committee of petroleum products and lubricants, and is drafted according to the European standard.

The director of the National Standard Committee said that compared with the fourth stage gasoline standard, the main change of the new standard can be summarized as "three reduction, two adjustments and one increase".

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"P > three drop" means reducing the limit of sulfur content, manganese content and olefin content.

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< p > sulfur content is the most critical environmental indicator of vehicle gasoline.

In order to further improve the capacity of vehicle exhaust purification system, the limit of sulfur content index is reduced from fourth stage 50ppm to 10ppm, that is, sulfur content per kilogram is not higher than 10 mg, which is reduced by 80%; < /p >

< p > taking into account the potential risks of manganese to human health and the adverse effects on vehicle emission control system, the new standard takes precautionary principle from the angle of health and environment, and limits the manganese content index from fourth stage 8mg/L to 2mg/L, and prohibits the addition of manganese containing additives; < /p >

< p > in order to further reduce the < a href= "http://www.91se91.com/news/index_c.asp" > photochemical pollution < /a > caused by the evaporation of gasoline, the content of olefins decreased from 28% in the fourth phase to 24% in the automotive engine intake system.

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< p > "two tones" refers to the adjustment of the vapor pressure and grade.

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< p > the lower limit of vapor pressure is increased from fourth stage 42kpa to 45kpa in winter.

The upper limit of vapor pressure is reduced from fourth stage 68kpa to 65kpa in summer.

No. five, No. 90, No. 93 and No. 97 were adjusted to 89, 92 and 95 respectively.

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< p > "one increase" means that in order to further ensure the relatively stable fuel economy of vehicles, the new standard specifies the density index for the first time, and its value is 720 to 775kg/m3. < /p at 20 degrees centigrade.

< p > < strong > production technology upgrading needs 4 years pition period < /strong > < /p >.

What is the improvement of air quality after the implementation of the new gasoline standard p?

"From the" four countries "to" five countries ", vehicle emissions will be significantly reduced.

Bao Xiaofeng, deputy chief engineer of the Chinese Academy of Environmental Sciences, told reporters that after the upgrading of the oil products, the total emissions of pollutants in vehicles can be reduced by 10% to 15% while the NOx emission of new vehicles can be reduced by about 25%.

According to the national standard committee, after the implementation of the standard, it is estimated that the annual emission of nitrogen oxides will be about 300 thousand tons per vehicle, and the new vehicle can reduce nitrogen oxides by about 90 thousand tons in 5 years.

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< p > > a href= "http://www.91se91.com/news/index_f.asp" > the National Standard Committee < /a > the person in charge said that from the present to the five gasoline supply country in the whole country, leaving 4 years pition period, "first, considering the environmental pressure, requirements and progress of different places are different, two is considering the need of oil production enterprise technology upgrading and equipment pformation".

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Will there be a long period in the pition period of "P > 4 years?" the key to the new standard is the reduction of sulphur content.

For oil production enterprises, it is only the main equipment to increase desulfurization. The hydrogenation reactor takes a longer period, and sometimes it takes about a year and a half to get there after ordering. "

Zhang Guoxiang, an oil refining expert from China National Offshore Oil Corporation, believes that setting up a pitional period is necessary. "However, before January 1, 2018, oil producers should be able to guarantee production and ensure that the country has five gasoline supply."

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< p > < strong > Beijing, Shanghai and Soviet Union five oil prices rose 4 cents less than /strong > /p >

< p > > a href= "http://fz.sjfzxm.com/" > the national development and Reform Commission < /a > announced in September this year the price adjustment standard of motor vehicle steam and diesel oil upgrading to the fourth and fifth stages.

The quality of motor vehicle gasoline has been upgraded to the fourth stage, and the price is increased by 290 yuan per ton (about 0.21 yuan per litre). After the end of 2017, the price of gasoline is upgraded to fifth yuan, and the price is increased by 170 yuan per ton.

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At present, some parts of Beijing, Shanghai and Jiangsu have already implemented the equivalent of five standard gasoline in advance. < p >

The average price of gasoline is about 4 cents per litre.

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< p > the Executive Council of the State Council proposed that the price of refined oil should be reasonably determined according to the principle of reasonable compensation cost, high quality and high price and polluter pays.

The development and Reform Commission has also said that the oil price upgrading standard is determined according to the principle that the refinery enterprise digests part of the cost and consumers bear part of the cost, and the enterprise takes about 30% of the cost increase.

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< p > Xu Hui, Secretary General of the petrochemical Standard Committee, said that the upgrading of gasoline quality requires refineries to increase production facilities, adjust production processes and upgrade catalysts, which will require considerable investment and take several years of pition time.

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< p > the investigation of upgraded refineries has shown that the investment in refinery equipment upgrading is less than 10 billion yuan, and several billion yuan.

"Different refinery costs increase differently, so it is difficult to calculate accurately."

Dong Xiu, director of the China Petroleum and gas industry development research center of China University of Petroleum, said that the government could only seek a relative compromise value through accounting and share it between producers and consumers.

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