IMPROVING BIOGAS PRODUCTION OF ANAEROBIC DIGESTERS BY MITIGATION OF INHIBITORS WITH BIOCHAR Allison Talley, Biochemist Enginuity Worldwide LLC 651 Commerce Road Mexico, MO Introduction Enginuity Worldwide located in Mexico, Missouri What we do Our facility Consists of a Rotary Compression Dryer (RCD), a Reflux Condenser, and an Aftercooler Pseudo-char No external heat source is required Continuous process may be carried to char in under 5 minutes Condenser and Aftercooler currently recaptures and condenses volatiles The Enginuity Process Before treatment (L) and After (R): Corn Stover Rotary Compression Unit Rotary Compression Dryer, Reflux Condenser, and Aftercooler Process Flow for Biocoal Characteristics of EWW Biochar Data obtained from external party regarding Enginuity biocoal processed from corn stover and oak sawdust Feedstock Carbon (%) Hydrogen (%) Oxygen (%) Nitrogen (%) Moisture Content (%) Initial Particle size (microns) Post-process Particle Size (microns) Corn Stover Oak Pine Feedstocks Used Corn stover Grasses Miscanthus Oak Mesquite Pallet Lumber Juniper Poultry Litter Pecan Shells Fescue Sorghum stover Pine Jatropha Arundo donax Coffee Grounds Food waste Anaerobic Digesters Needs Appropriate pH Temperature Mitigation of heavy metals, chlorine, and pharmaceuticals Needs remediation method to mix with ease and stay suspended Barn cleanouts an issue Anaerobic Digesters Initial data to support EWW biochar as a mitigatant Enginuitys proprietary process produces a char that is easily briquetted, rather than pelleted Project with third party to begin soon in which biochar will be utilized in lagoons to improve methane production Biochar will be densified and added to the lagoons upon barn cleanout Biogas will be monitored for quantity as well as quality Briquettes EWWs process produces a very dense briquette Better solution than pellets slip stick Friction in the die causes overheating Accurate moisture content necessary Briquetting provides mechanical locking which increases durability Briquetting requires no heat Advantages of Process Continuous Process Allows for large scale application very quickly Utilizes any agricultural residue or wood waste, no equipment change Energy efficient, Requires no external heat source to char material Briquetting sinks biochar to the bottom to allow for a slower release (cannot sit on top) Utilizes crops found near lagoons Potential to be mobile (CURRENT PROJECT) Effluent has the potential to be turned back into biochar! For more information visit our websiteOr contact Allison Talley, Biochemist Enginuity Worldwide LLC 651 Commerce Road Mexico, MO