From Grain to Gallon: Total Process Visibility for Ethanol Producers
Ethanol production runs on tight margins. When feedstock quality varies, fermentation underperforms, or DDGS leaves the dryer at the wrong moisture level, the financial impact is immediate.
Process NIR solutions give manufacturers real-time visibility across every stage of production, turning process data into decisions that drive yield, efficiency, and co-product value.
Taking continuous measurement of moisture, starch, sugars, protein, ethanol, and solids, Perten's diode array NIR systems integrate seamlessly with plant control systems to keep every control point optimized, from grain intake through to DDG/DDGS production.
The numbers show what that control is worth:
- Generate $800K in additional annual revenue from a 0.5% ethanol yield improvement at a 100 MMgy plant
- Save $150K–$200K annually through real-time moisture control reducing over-drying by just 1%
- Recover $500K in co-product revenue from 0.75% additional sellable DDGS mass at a 300,000-ton plant
This flyer details how our DA 7250 at-line, DA 7350 in-line, and DA 7440 on-line NIR solutions deliver the process intelligence ethanol producers need to protect margins and maximize output at every shift, across every site.
Achieve More Consistent Production, Improved ROI and Reduced Waste
Perten’s NIR solutions help ethanol producers turn feedstock and process variability into predictable yield and higher co-product value. These fast, diode array NIR systems deliver actionable measurements in seconds for key parameters such as moisture, starch, sugars, protein, ethanol, and solids at critical control points including grain intake, mixing and saccharification, yeast propagation and fermentation, co-product processing, and DDG/DDGS production. With real-time insight into starch conversion, fermentation health, and DDG moisture and nutrient content, operators can optimize enzyme dosing, detect issues earlier, reduce dryer energy use, and maximize ethanol and DDGS yield. Rugged designs and seamless integration with plant control systems enable tighter process control, faster payback, and consistent margins across shifts and sites.
The rugged, adaptable design of Perten’s NIR solutions allow ethanol producers to leverage data across the entire value chain, from grain intake and fermentation to co-product drying and final quality release, ensuring continuous insight to optimize yield, efficiency, and ROI
Intake & Grain Handling
Measure moisture, starch, protein, oil, and other compositional attributes of corn or alternative grains, enabling plants to manage feedstock segregation, blending, and yield expectations before processing begins.
Mixing & Saccharification
Monitor total solids, starch, dextrins, and fermentable sugars such as glucose and maltose, facilitating optimized enzyme dosing, stable mash consistency, faster conversion feedback, and reduced downstream variability
Yeast Propagation & Fermentation
During fermentation, NIR supports real-time monitoring of ethanol, sugars, organic acids (lactic and acetic), glycerol, and solids. Offering a faster and easier solution than traditional HPLC methods, NIR helps operators detect infections early, assess fermentation health, and maximize ethanol yield.
Co-Product Processing
Leverage and maximize the return on co-products through consistent monitoring of moisture, protein, fat, fiber, starch, and solids in wetcake, thin stillage, and syrup to support energy-efficient drying and higher-value co-product streams.
DDG/DDGS Production
Further maximize co-product revenue utilizing process NIR enabled solutions for continuous moisture control at dryer and cooler discharge, reducing energy consumption while ensuring DDG and DDGS outputs meet nutritional and contractual specifications
Real-time insight from grain to gallon and beyond
Leveraging benchtop NIR at grain intake, an ethanol producer was no longer forced to rely on average moisture and starch levels, enabling better segregation and blending. A modest 0.5% ethanol yield improvement at a 100 MMgy plant generated roughly $800K in incremental annual revenue.
Utilizing in-line process NIR sensors at DDG dryer discharges enabled real-time moisture control, reducing over-drying. Cutting over-drying by 1% can lower dryer energy use by 5–7%, saving one plant $150K–$200K annually while improving moisture consistency.
Continuous NIR monitoring of wetcake and DDGS moisture and composition reduces over-drying which can result in off-spec product and reduced sellable mass. Recovering just 0.75% additional sellable DDGS mass at a 300,000-ton plant can add nearly $500K in annual co-product revenue.
