The dehydrogenation temperature of thermal oil is generally between 280 ℃ and 330 ℃, and the specific temperature may vary according to different process requirements.

1、 The principle of dehydrogenation reaction

Dehydrogenation is a chemical reaction that involves removing hydrogen atoms from the molecular structure while generating unsaturated compounds. Dehydrogenation reactions are widely used in various chemical industries, such as the production of synthetic resins, fibers, rubber, dyes, etc. In chemical industry production, dehydrogenation reactions are usually carried out under high temperature and high pressure conditions, in which thermal oil plays a crucial role as a heat transfer medium.

2、 Selection of thermal oil

Thermal oil is a heat transfer medium used to transfer thermal energy from a heating source (such as a furnace, water heater, etc.) to an object that needs to be heated. Choosing the appropriate heat transfer oil is crucial in dehydrogenation reactions. Firstly, it is necessary to choose a heat transfer oil with good thermal stability to ensure that no decomposition products are produced under high temperature conditions, which may affect the progress of the reaction. Secondly, the flash point of thermal oil should be high to reduce the risk of fire. Common heat transfer oils include polyamide heat transfer oil, phenolic resin heat transfer oil, etc.

3、 Suitable dehydrogenation temperature range

Dehydrogenation reaction is a high-temperature reaction that needs to be carried out at an appropriate temperature to ensure the progress of the reaction. Generally speaking, the dehydrogenation temperature of hydrocarbon raw materials such as natural gas and petroleum is relatively low, and the reaction can be carried out below 400 ℃. Higher molecular weight and more complex organic compounds require higher temperatures. In the dehydrogenation reaction using thermal oil as a heat transfer medium, the suitable dehydrogenation temperature range is between 280 ℃ and 330 ℃, and the specific temperature may vary depending on different process requirements.

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