Smoke Suppressant This product is a multi-effect fuel oil detergent, which is a compound of a number of surfactants including organic detergent dispersant, soot remover, and combustion promoter. In contrast to pure iron-containing smoke suppressant, this product does not produce ash itself, and offers better combustion support, smoke suppression and detergence performance. The combustion supporting factor is 2.1 times of iron-based smoke suppressant. By using this product, the combustion efficiency is increased by about 0.5-1%, the smoke caused by the combustion is reduced by 65%-90%, and the deposit of carbon black in the flue can be reduced by35%-65%. It reduces atmospheric pollution, and offers practical significance to environmental protection. Working Principle: After adding the additive into heavy oil, the contained organic rare earth can promote the combustion, and reduce carbon black and smoke, which will facilitate more complete combustion of the heavy oil. It can be taken as a combusting catalyst, as it can fast and effectively promote the combustion and oxidation process of the fuel oil, so that it can be more completely combusted, and significantly reduce the production of carbon black.