The core advantage of polyetheramine D230 (CAS: 9046-10-0) as a fuel additive lies in its combination of detergency-dispersancy, antioxidant and anti-corrosion properties. It is particularly suitable for mineral fuels such as gasoline and diesel, mainly used to solve problems like engine carbon deposition and corrosion. Below is an in-depth explanation:
Detergency and Dispersancy: The lipophilic polyether segment in the molecular structure can adsorb gums and carbon deposition precursors in fuel. The hydrophilic/polar amino group reduces the agglomeration force of these impurities, dispersing them into tiny particles that are discharged with exhaust gas. This prevents deposition on fuel injectors, combustion chambers, and intake valves.
Antioxidant and Anti-gumming Properties: The amino group has a certain reducing property, which can capture free radicals generated by fuel oxidation. It inhibits the oxidation of hydrocarbons to form gums and sediments, extending fuel storage stability and reducing engine failures caused by fuel deterioration.
Anti-corrosion Protection: The amino group can neutralize trace acidic substances (such as organic acids and sulfide derivatives) that may be produced after fuel combustion. It avoids corrosion of engine metal parts (such as fuel injectors and cylinder walls) by acidic substances, and forms a protective film on the metal surface to reduce wear.
Improved Combustion Efficiency: By removing and inhibiting carbon deposition, it maintains the uniformity of fuel injector spray, enabling more sufficient mixing of fuel and air. This reduces incomplete combustion, indirectly improving fuel economy and lowering emissions of pollutants such as CO and HC in exhaust gas.
Gasoline Engines: Suitable for vehicle gasoline, ethanol gasoline, etc. It focuses on solving fuel injector carbon deposition and intake valve deposits in multi-point injection (MPI) and direct injection (GDI) engines, especially for high-end cars and turbocharged models (which have high requirements for injection precision).
Diesel Engines: Can be used for diesel, biodiesel and their blended fuels. It targets fuel injector carbon deposition and combustion chamber carbon deposition in high-pressure common rail diesel engines, while alleviating the defect of biodiesel's easy oxidation and deterioration.
Other Fuels: Applicable to non-road fuels such as those for ships and construction machinery, as well as fuels for generators. It meets the engine cleanliness and stability requirements under long-term operating conditions.
Addition Amount: The conventional addition concentration is 50-500 ppm (mass fraction), which can be adjusted according to fuel quality and engine operating conditions. For high-pollution fuels or old engines, the addition amount can be appropriately increased.
Compatibility: It has good compatibility with other fuel additives (such as anti-knock agents, anti-wear agents, and detergent compounds). It can be used in combination to improve comprehensive performance, but mixing with strong acidic additives should be avoided (as it will reduce amino group activity).
Physicochemical Adaptability: It is a low-viscosity liquid (about 20-30 mPa·s at 25℃), easily soluble in hydrocarbon fuels such as gasoline and diesel, and does not affect key fuel indicators such as volatility and fluidity.
Stability: It has stable performance within the range of fuel storage and engine operating temperatures (-20℃ to 150℃), is not easy to decompose, and has a shelf life of more than 12 months (under sealed storage conditions).
Core Advantages: Compared with traditional polyisobutylene amine (PIBA/PIB) detergents, the polyether segment of polyetheramine D230 is more biodegradable, with better environmental friendliness. The amino group has moderate activity, which not only ensures cleaning effect but also does not cause spark plug fouling due to excessive alkalinity.
Limitations: Its carbon deposition removal effect in high-temperature areas (such as the top of the combustion chamber) is weaker than that of special high-temperature detergents. In high-sulfur fuels, the anti-corrosion performance will be affected to a certain extent, so it is necessary to match desulfurization additives or increase the addition amount.
