How does fuel oil purification and polishing work together?

Fuel oil purification and polishing work as complementary processes to ensure high fuel quality. Purification is the first step, typically using centrifuges or water separators to remove water, sludge, and large contaminants from the fuel. After purification, the fuel goes through a polishing process, which involves fine filtration to remove smaller particulates, such as dirt and rust, ensuring the fuel is clean and stable. Together, these processes provide comprehensive cleaning to maintain fuel quality, extend equipment life, and improve performance.