Renewable Feedstock Pretreatment with TRISYL® Silica Adsorbents

Feedstock pretreatment is an essential component of the Renewable Diesel refining process, but it can be challenging due to the variety of feedstock sources available. To overcome this challenge, Grace has successfully introduced TRISYL® 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 TRISYL® silica allows refiners to reduce feedstock pretreatment costs and solid waste, protect their catalysts, extend their reactor cycles, minimize operational maintenance, and increase time on-line. When replacing traditional clay/ABE adsorbents, TRISYL® silica can help deliver higher productivity up to 2.5% and up to 85% less solid waste generated by reducing spent filter cake disposal and associated feedstock losses. TRISYL® also does not contain leachable levels of metal oxides which prevents oil oxidation reactions and reduces the risk of filter-cake auto-ignition.