Activated Carbon or particularly PAC (powdered activated carbon) grades for edible oil refining are mixed with Fuller’s earth in proportions and used to purify edible oil. Harmful toxins, colors, and PAH are removed from the edible oils. These generally are a product of refining oil on a commercial scale.
What kind of activated carbon is preferred?
Choosing the right activated carbon for oil purification involves several factors:
- High filtration or coarser particle-size powders produce better yield and faster filtration.
- High Macro and Meso porosity-based powders ensure they adsorb all the dark/light colorants.
- Low PAH values are critical for the health standards of the oil.
- Generally neutral to alkaline pH products are used.
- While GAC or granular carbon can be used, for maximum efficacy and to handle large volumes of oil, PAC is preferred.
- The right ratio and the right type of fuller earth are equally important for the filtration process.
UCI Carbons has some tailor-made products for refining of edible oils from Rice, Palm, and other applications. Owing to improved filtration, low PAH, low mineral ash, and negligible heavy earth metals, the following grades of UCI are generally used.
UCI Carbons Products for Oil Purification
- UCI 10N – Basic powder carbon, medium activity.
- UCI 15N+ – Good micro and meso porosity, low mineral ash, low PAH.
- UCI 16N – Good micro and meso porosity, low mineral ash, low PAH.
- UCI UW24 – High meso and macro porosity, low mineral ash, low PAH, good filtration.
Conclusion
Activated carbon for edible oil purification is crucial for purifying edible oils effectively. UCI Carbons offers tailored products like UCI 10N, UCI 15N+, UCI 16N, and UCI UW24, each designed to meet specific needs such as improved filtration and low PAH levels. By selecting the appropriate grade, edible oil refineries can achieve high-quality purification results.