Temperature is a key factor affecting the separation effect of Propane-Propylene (PP) Splitter.

From the perspective of physical properties, propane and propylene have different boiling points, with propane boiling at about - 42.1℃ and propylene boiling at about - 47.6℃. In the Propane-Propylene (PP) Splitter, changes in temperature directly affect the gas-liquid equilibrium state of the two substances.

When the temperature rises, the thermal motion of the molecules intensifies. Inside the Propane-Propylene (PP) Splitter, higher temperatures make it easier for propane and propylene molecules to transition from liquid phase to gas phase. For the separation process, if the temperature is too high, it may lead to a decrease in the difference in volatility between the two. This means that during mass transfer exchange between the gas and liquid phases, propane and propylene cannot be well distinguished, thereby reducing the separation effect and making it difficult to ensure the purity of the product.

On the contrary, there are also problems with too low a temperature. Too low a temperature will increase the difficulty and cost of operation, such as requiring more powerful refrigeration equipment to maintain a low temperature environment. At the same time, too low a temperature may cause excessive condensation of the material, resulting in an imbalance in the gas-liquid flow in the tower, affecting the normal separation operation process.

The appropriate temperature range can maximize the difference in the boiling points of propane and propylene to achieve effective separation. Within this temperature range, the distribution of propane and propylene molecules between the gas and liquid phases can meet the ideal separation requirements. Operators need to accurately control the temperature according to the specific design of the Propane-Propylene (PP) Splitter, feed composition, and product purity requirements to achieve the best separation effect, ensure that propane and propylene can be separated efficiently and accurately, and meet the needs of subsequent production processes for high-purity propane and propylene.