Ethanol Milling

Ethanol (C2H5OH) is currently produced from feedstock of energy crops using glucose derived from the plant sugar, starch, and cellulose. Biomass feedstock examples may be sugar cane, corn and switch grass. The glucose is transformed by the fermentation process to split the glucose molecules into ethanol and CO2. Depending on the type of feedstock, addition of enzymes may be required to help free the glucose molecules. Next, the ethanol is concentrated using conventional distillation and then may be further concentrated through a molecular sieve system. The stillage is evaporated and dried to sell as fertilizer or high protein grain. The benefit of using ethanol as a fuel is that it is renewable over its lifecycle. Ethanol begins its lifecycle as carbon stored in biomass, which is converted to ethanol and then burned as fuel that emits water and CO2. Photosynthesis converts the carbon back into biomass.

Teledyne systems provide efficient, effective and reliable support, data storage and reporting for the milling process and source emissions.

Analysis Point
Components Measured
Teledyne Products 
Grain handling units Particulate Matter LaserHawk 360
Boilers Particulate Matter, NOx, CO, SO2, VOC and Exhaust Gas Flow LaserHawk 360, sensor-e™ gas analyzers, UltraFlow150
DDGS dryer Particulate Matter, NOx, CO, SO2, VOC and Exhaust Gas Flow LaserHawk 360, sensor-e™ gas analyzers, UltraFlow150
Fermentation unit VOC Falcon GC
Distillation VOC Falcon GC
Cooling cyclone Particulate Matter, VOC LaserHawk 360, Falcon GC
Ethanol load out VOC Falcon GC
Cooling Towers Particulate Matter LaserHawk 360
Storage tank/Centrate tank VOC Falcon GC
Wastewater treatment process H2Sand VOC sensor-e™ H2S, Falcon GC
Emergency equipment Particulate Matter, NOx, CO, SO2, VOC and Exhaust Gas Flow LaserHawk 360, sensor-e™ gas analyzers, UltraFlow150
Fugitive emissions Particulate Matter, and VOC LaserHawk 360, Falcon GC
Effluent Water BOD, pH/TSS/DissolvedO2/Turbidity, Oil-in-Water, THC-in-water 6700 series, LXT 380, 6600, 4080

More Information 

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