Distillers Corn Oil (DCO / Technical Corn Oil)

Low-CI technical corn oil from ethanol dry mills for HVO, SAF, biodiesel and poultry feed formulations

Distillers corn oil (DCO), also marketed as technical corn oil (TCO) or inedible corn oil, is extracted as a secondary coproduct in the dry-mill ethanol manufacturing process. In modern dry-mill ethanol facilities, ground yellow corn is fermented to produce fuel ethanol and whole stillage; after centrifugation removes coarse distillers grains, the resulting thin stillage is processed through high-speed disc-stack centrifuges to separate crude corn oil prior to final syrup evaporation. Because the oil has passed through industrial thermal distillation and fermentation, it is categorised as a non-food, technical lipid feedstock, distinguished by its amber-reddish tint, elevated free fatty acid content, and distinctively low carbon intensity (CI) score.

In global biofuel refining, DCO is one of the most sought-after second-generation feedstocks for Hydrotreated Vegetable Oil (HVO renewable diesel) and Sustainable Aviation Fuel (SAF / HEFA-SPK). Under the European Union's Renewable Energy Directive (RED II / RED III) and national decarbonisation schemes (such as the US Renewable Fuel Standard, California LCFS, and UK RTFO), distillers corn oil qualifies as an advanced, non-food agro-industrial coproduct. Its carbon intensity (typically 20–35 g CO2e/MJ) yields dramatic lifecycle greenhouse gas savings compared to virgin vegetable oils (such as palm or soy), generating premium regulatory credit values (RINs, LCFS credits, and GHG abatement premiums) without triggering indirect land-use change (ILUC) penalties.

Trading contracts standardise on three critical analytical parameters: 1. Free Fatty Acids (FFA): Quoted as % oleic acid. Low-FFA cuts (5–12% or 10–15% FFA) are sought by conventional FAME biodiesel producers using acid esterification or enzymatic routes; standard and high-FFA cuts (15–25% FFA) are favoured by hydroprocessing units (HVO/SAF refineries), where free fatty acids and triglycerides undergo catalytic deoxygenation directly into paraffinic straight-chain hydrocarbons. 2. Moisture, Insoluble Impurities and Unsaponifiables (MIU): Standard commercial delivery contracts guarantee total MIU ≤ 2.0% maximum (typically Moisture ≤ 1.0%, Insoluble impurities ≤ 0.1%, Unsaponifiables ≤ 1.0%). Elevated moisture causes hydrolytic splitting and increases transport weight; sediment fouling must be strictly excluded before receipt at refinery pre-treatment units (PTUs). 3. Trace Contaminants & Catalyst Poisons: Refineries screen phosphorus (P, typically 20–100 ppm) and trace metals (sodium, potassium, calcium, magnesium ≤ 10–30 ppm total), which are removed in the refiner's acid-degumming and bleaching pretreatment earth stage.

Beyond renewable fuels, DCO serves as a high-density energy and linoleic acid supplement in animal nutrition, particularly in poultry broiler rations and swine feeding, where its natural xanthophyll pigments enhance yolk colour. UN Comtrade trade flows place technical and industrial corn oil under HS 1515.29 / 1515.21 / 2303.30, with major production and export originating from the US Midwest ethanol belt (Illinois, Iowa, Nebraska, Minnesota), Brazilian corn ethanol clusters in Mato Grosso and Goiás, and European ethanol mills in Germany, France and Hungary.

CBIL is a commodity brokerage company and brokers distillers corn oil on FOB, CFR and CIF terms directly between dry-mill ethanol producers, primary blenders, and HVO/SAF refiners. Ocean transport is arranged in bulk liquid parcel tankers (3,000 to 10,000 MT chemical tankers from US Gulf or Brazilian terminals), dedicated ISO tank containers (21–24 MT net), or 24,000-litre multi-layer flexitanks in standard 20-ft dry containers (~21.5 MT net). Through CBIL's specialized chartering desk (LaycanDesk), vessel chartering and freight legs are quoted concurrently. Every shipment carries an independent inspection report (SGS, Intertek, or Camin Cargo) verifying FFA, MIU, IV, flash point, and metals, alongside a valid ISCC EU or ISCC PLUS Proof of Sustainability (PoS) detailing certified GHG savings, feedstock origin, and supply-chain traceability. Send your required FFA band, monthly tonnage, delivery mode and destination port, and the enquiry is screened and worked against it.

Excluded origins are not offered, including product re-exported, blended or re-processed through a third country. Every lot moves with a certificate of origin naming the producing plant, mine or grower country, and nothing is quoted before the seller and loading point are known.