【Daily Question】1.11 Short-answer question: Why is it necessary to control the 10% distillation temperature of automotive gasoline?
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Brief question: Why is it necessary to control the 10% distillation temperature of automotive gasoline? It indicates the amount of low-boiling-point fractions in gasoline; it has a decisive impact on the ease of starting a gasoline engine, and is also closely related to the tendency to experience vapor lock. The lower the 10% distillation temperature, the more low-boiling components are present in the gasoline, which facilitates easier starting of the gasoline engine at low temperatures; however, if this distillation temperature is too low, gas blockage can occur. Correct answer +2, in-depth discussion +5 @Guan Gongyu
Why is it necessary to control the 10% distillation temperature of automotive gasoline? The 10% distillation temperature of gasoline indicates its starting performance in engines ； The 10% distillation temperature is too high, making it difficult to start the vehicle when it’s cold.
10% distillation temperature – indicates the amount of light fractions present in gasoline. It is directly related to the ease of starting a cold engine in winter and the likelihood of \"air lock\" occurring when the engine is used in summer. The lower the 10% distillation temperature, the more light fractions there are in the gasoline, the better its volatility, and the easier it is for the engine to start at lower temperatures. Therefore, the 10% distillation temperature needs to be controlled.
Why is it necessary to control the 10% distillation temperature of automotive gasoline? The 10% distillation temperature of the oil indicates the amount of low-boiling-point fractions in gasoline; it has a decisive impact on the ease of starting a gasoline engine, and is also closely related to the tendency to experience vapor lock. The lower the 10% distillation temperature, the more low-boiling components are present in the gasoline, which facilitates easier starting of the gasoline engine at low temperatures; however, if this distillation temperature is too low, gas blockage can occur.
It indicates the amount of light components in gasoline; it has a decisive impact on the ease of starting a gasoline engine, and is also closely related to the tendency to develop vapor resistance. A low 10% distillation temperature indicates a high proportion of light components, which results in good starting performance for gasoline engines, but also an increased tendency to experience vapor lock.
The gasoline boiling range specifies that the distillation temperature at the 10% point should not exceed a certain value in order to maintain good starting performance. However, a temperature of 10% is too low; this results in too high a vapor pressure of gasoline, which hinders the separation of the products. It also makes it difficult to transport and store gasoline, leading to losses, and gas blockages can easily occur during its use. Therefore, it is necessary to control the vapor pressure of gasoline.
The lower the 10% distillation temperature, the more light fractions there are in the gasoline, the better its volatility, and the easier it is for the engine to start at lower temperatures. Using 10% gasoline with different distillation temperatures, the lowest temperature at which it can start directly was tested under certain conditions. Therefore, it is necessary to control the 10% distillation temperature of automotive gasoline.
The lower the 10% distillation temperature, the more light fractions there are in the gasoline, the better its volatility, and the easier it is for the engine to start at lower temperatures. Gasolines with 10% content and different distillation temperatures were tested under certain conditions to determine whether they could start the engine directly
The 10% distillation temperature indicates the quality of a gasoline’s starting performance in an engine
The main considerations are the difficulty of starting the car engine under low-temperature conditions in winter, as well as whether air resistance will occur under high-temperature conditions. In other words, controlling the distillation temperature of 10% of automotive gasoline is primarily aimed at ensuring good starting performance of car engines.
10% distillation temperature – indicates the amount of light fractions present in gasoline. It is directly related to the ease of starting a cold engine in winter and the likelihood of \"air lock\" occurring when the engine is used in summer. The lower the 10% distillation temperature, the more light fractions there are in the gasoline, the better its volatility, and the easier it is for the engine to start at lower temperatures.