What is the use of 2,6-Di-tert-butyl-4-methylphenol in petroleum products?

2,6-Di-tert-butyl-4-methylphenol has the following uses in petroleum products:

1. Antioxidant effect:

1.1 Inhibit oil oxidation: Petroleum products are prone to react with oxygen in the air during storage and use, resulting in oxidation and deterioration. 2,6-Di-tert-butyl-4-methylphenol can capture free radicals generated during oil oxidation, interrupt the oxidation reaction chain, and prevent further oxidation of the oil, thereby extending the service life of the oil. For example, in lubricating oil, adding 2,6-Di-tert-butyl-4-methylphenol can effectively inhibit its oxidation under conditions such as high temperature and metal catalysis, and maintain the performance of the lubricating oil.

1.2 Prevent the formation of colloid and precipitation: Oil oxidation will produce colloid, asphaltene and other substances, which will be deposited on the surface of equipment such as engines and pipelines, affecting the normal operation of the equipment. 2,6-Di-tert-butyl-4-methylphenol reduces the formation of colloid and precipitation through antioxidant effect, maintains the cleanliness of oil, and makes petroleum products more complete and stable during combustion. For example, adding it to gasoline can prevent the formation of deposits on the engine intake system and fuel injectors, ensuring the normal operation of the engine.

2. Improve the stability of oil products:

2.1 Enhance thermal stability: Petroleum products used in some high-temperature environments, such as heat transfer oil and transformer oil, need to have good thermal stability. 2,6-Di-tert-butyl-4-methylphenol can improve the stability of oil products at high temperatures, prevent the oil products from deteriorating and decomposing due to heat, and ensure that the oil products can function normally under high-temperature conditions.

2.2 Improve storage stability: For petroleum products stored for a long time, 2,6-Di-tert-butyl-4-methylphenol can inhibit its oxidation reaction during storage and prevent the quality of the oil products from deteriorating. It enables petroleum products to maintain their original physical and chemical properties during storage, reduces quality loss caused by long storage time, and reduces the company's inventory costs and quality risks.

3. Synergistic effect with other additives: In petroleum products, multiple additives are usually added to meet different performance requirements. 2,6-Di-tert-butyl-4-methylphenol can work synergistically with other additives, such as detergent dispersants, anti-wear agents, rust inhibitors, etc. For example, when used in combination with long-chain alkaline ZDDP and TCP metal deactivation rust inhibitors, better anti-wear hydraulic oil can be formulated to enhance the comprehensive performance of the oil.