On November 7, 2013, the Trade and Industry Bureau of Jilin Province announced the quality monitoring of refined oil products in circulation in 2013. As a result, the qualified rate of gasoline and diesel sampling failed to reach 70%, and adulterated adulteration became the most prominent problem. Recently, the market office of Jilin Provincial Administration for Industry and Commerce commissioned three quality inspection agencies to carry out statutory sampling inspections of the quality of refined oil in the province. As a result, the testing department monitored 1,645 batches of gas stations using rapid inspection equipment. The total of 1,851 batches was 93%. The total oil product qualification rate was 93%. For suspected oil products with unqualified quality, 341 batches of samples were monitored and 227 batches were qualified. Among them, 114 were unqualified, and the sampling pass rate was 66.57%. 196 batches of ethanol gasoline were tested, and 136 batches passed. The qualification rate was 69.39%; 145 batches of diesel were tested and 90 batches were qualified, and the pass rate was 62.07%. According to the results of the inspection, the staff of the Bureau of Industry and Commerce said that the oil products involved in unqualified quality have been placed on file and submitted to the local AIC for investigation. In the next step, the Jilin Provincial Administration for Industry and Commerce decided to increase the scope and frequency of rapid testing of ethanol gasoline. It is necessary to promptly inspect samples of suspected unqualified gasoline by quality inspection agencies. The industrial and commercial departments in the area quickly test oil samples and strive to achieve full coverage in 2014. , leaving no blind spot for supervision. Unqualified oil products mainly have the following problems: Question 1 doping makes false During the inspection process, the staff found that some of the oils failed the octane rating. According to reports, octane rating is one of the main indicators to assess the pros and cons of gasoline. The main reason for the high defective rate of finished oil products is that some dealerships have used the standard oil purchased by normal channels and the non-standard oil bought by abnormal channels to blend together for the purpose of competition, and they have been used to make false or direct purchases of inferior quality. Oil, shoddy, sold at low prices. Question 2 steam and diesel mixed operation At the same time, some diesel flashpoints failed. After investigation, the staff concluded that the quality level of light diesel oil produced by some small oil refineries is not high, and some unscrupulous distributors have incorporated low-priced, volatile, and low-boiling low-quality oils in light diesel oil. There was also a situation where gasoline and diesel were mixed and transported. Tankers were not cleaned in accordance with the regulations, resulting in failure of diesel flashpoints. Question 3 Low-grade oil "Upgrade" sales In addition, the sulfur content of some oils exceeded the standard during the testing process. Provincial Industry and Commerce Bureau staff said that the sulfur content in gasoline and diesel is to assess the content of sulfur and its derivatives in fuel oil, and it is an indicator to control the engine from corrosion and prevent environmental pollution. Sulphur content in diesel is more prominent than gasoline. The main reason for the unsatisfactory sulphur content is that the gas station is mixed with low-quality oil when it enters the oil, or the manufacturer does not desulfurize or waste. Question 4 using unleaded gasoline without added ethanol Provincial Administration of Industry and Commerce staff also found that some of the tested units used unleaded gasoline without added ethanol. According to reports, currently used vehicle fuels are generally methyl tertiary-butyl ether (MTBE) oxygenated additives, which are toxic to groundwater resources and have been banned in many countries. The use of ethanol can completely replace MTBE and effectively prevent groundwater resources. damage. In addition, for vehicle ethanol gasoline, the octane number of the component oil does not reach the label, and it is necessary to rely on ethanol to increase the octane number. The decrease in the ethanol content means that the oil product is not marked enough. Question 5 Methanol acts as ethanol During the testing process, some units added methanol as ethanol to reduce costs. Industry and Commerce Bureau staff said that methanol is low in price, light in components and highly corrosive. Internationally, there are also precedents for the addition of methanol to oil products. However, it is necessary to add anti-corrosion additives. The technology of additives is currently not mature in China, so methanol is added. It will cause damage to the vehicle.
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