What is the difference between national standard oil and Beijing standard oil?
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May I ask what are the differences in specifications between the national standard and Beijing standard for gasoline? What methods can be used to convert national standard oil into Beijing standard oil?
Currently, the standards for gasoline in Beijing are stricter than those in the national standard. The Beijing standard requires that the sulfur content meet the Euro 4 standard, that is, the sulfur content should be less than 50PPM. At the current stage, the national standard adopts the Euro 2 standard, which means a sulfur content of less than 500PPM. National standard gasoline can have its quality improved through reprocessing methods; for example, S_Zorb adsorption desulfurization can reduce the sulfur content in gasoline to less than 10PPM.