Dicalite produces and sells Engineered Diatomaceous Earth, Perlite and Cellulose play a critical role in removing unwanted contaminants to prevent clogging of the refueling pump filter and help to create a cleaner fuel source. Feedstock Flexibility Vegetable Oil, Animal Oils and Fats. • Corn Oil • Tallow• Soy Oil • Sunflower• Canola Oil • Palm• Used Cooking Oil • Rapeseed • Coconut • Olive• Peanut • Algae Filtration Processes • Pretreatment / Degumming • Bleaching • Winterization / Fractionation • Hydrogenation