What is the antiknock agent for gasoline? What is the antiknock agent for gasoline? Antiknock refers to the ability of gasoline to resist knocking and combustion under various conditions of use. The antiknock performance of automobile gasoline is expressed by octane number. The higher the octane number, the better the antiknock performance. The antiknock ability of gasoline is related to its chemical composition. Branched alkanes, olefins and aromatics usually have excellent explosion resistance. The octane number of isooctane is 100, which has good antiknock performance; The octane number of n-heptane is 0, and its antiknock performance is poor. The octane number of gasoline is determined by an octane number machine. High octane gasoline can meet the needs of high compression ratio gasoline engine. The higher the compression ratio of gasoline engine, the higher the thermal efficiency, which can save fuel. Improving the octane number of gasoline mainly depends on increasing the components of high octane gasoline, but it is also achieved by adding anti-knock agents such as MTBE. The grade of gasoline is divided according to the octane number. Antiknock refers to the ability of gasoline to resist knocking when burning in an engine, which is the main index of gasoline combustion performance. Knock is caused by abnormal combustion of gasoline in the engine. The octane number index of gasoline is the most concerned index, because gasoline products are divided into 92, 95 and 98 according to the antiknock index. Because of different labels, the performance of gasoline products is different, and the price of gasoline is also different. So what does the gasoline label mean? The octane number of gasoline can be divided into MON: engine octane number (MON) and research octane number (RON). RON can better reflect the antiknock performance of gasoline under mild conditions and low engine speed, and MON can better reflect the antiknock performance of gasoline under high engine speed or heavy load. The average value of the two is called "antiknock index", and the difference between them is called "sensitivity". EU gasoline standards restrict both RON and MON. The United States only restricts the anti-explosion index (AKI), while China restricts RON and AKI. The relationship between RON and MON should be Ron ≈ mon 10, and that between Ron and AKI should be RON≈AKI 5. Octane number refers to octane number, which is a numerical index to measure the anti-knock combustion ability of gasoline in the cylinder. A high value means good anti-knock. Usually, the standard isooctane number is set to 100, and the octane number of n-heptane is set to zero. The two standard fuels are mixed in different volume ratios to obtain mixed liquids with different impact resistance grades, which are compared with the fuel to be tested under the same engine working conditions. The octane number of the sample is the percentage of isooctane contained in the mixed solution with the same impact resistance as the sample. Gasoline has high octane number, good shock resistance and good quality. Multiply the percentage of different kinds of hydrocarbons in gasoline by its octane number and add up to the octane number of gasoline. Refers to the ability of gasoline to resist detonation combustion under various conditions of use. The antiknock performance of automobile gasoline is expressed by octane number. The higher the octane number, the better the antiknock performance. The antiknock ability of gasoline is related to its chemical composition. Branched alkanes, olefins and aromatics usually have excellent explosion resistance. The octane number of isooctane is 100, which has good antiknock performance; The octane number of n-heptane is 0, and its antiknock performance is poor. The octane number of gasoline is determined by an octane number machine. High octane gasoline can meet the needs of high compression ratio gasoline engine. The higher the compression ratio of gasoline engine, the higher the thermal efficiency, which can save fuel. Improving the octane number of gasoline mainly depends on increasing the components of high octane gasoline, but it is also achieved by adding anti-knock agents such as MTBE. The grade of gasoline is divided according to the octane number. @20 19