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Silica adsorbents for biofuel feedstock pretreatment

Feedstock pretreatment is an essential component of the renewable fuels refining process however it can be quite challenging due to the variety of feedstock sources available. To overcome this challenge, Grace has developed multiple grades of silica adsorbents for removing phosphorus- and metal-based impurities from feedstocks which tend to foul equipment and poison catalysts at refining conditions. Due to its superior adsorption capacity, pretreatment with silica adsorbents allows refiners to protect their catalysts, extend their reactor cycles, minimize operational maintenance, and increase time on-line. Compared to traditional clay and DE adsorbents, Grace's synthetic silica adsorbents can help deliver higher productivity up to 2.5%, operational cost savings up to 90%, and up to 85% less solid waste generated by reducing spent filter cake disposal and associated feedstock losses.