Overview
What Is Soybean Oil as a Biofuel Feedstock?
Soybean oil is the world's second-largest vegetable oil by volume, produced predominantly in the United States, Brazil and Argentina. For biofuel use, it is available as crude degummed soybean oil (CDSO) or refined, bleached and deodorised (RBD) soybean oil, with the latter preferred for direct processing in HVO hydrotreaters and FAME plants.
Soybean oil's fatty acid profile is highly polyunsaturated: linoleic acid (C18:2) at 50–60% and linolenic acid (C18:3) at 5–11%, which results in excellent cold flow properties but higher hydrogen consumption during hydroprocessing versus saturated feedstocks. The high linolenic content also poses oxidative stability challenges in FAME (SME) produced from soy.
Under EU RED III, soybean oil is a first-generation crop-based feedstock subject to the 7% cap and single-counting rules. For the US market, soybean oil HVO and FAME qualify for D4 Biomass-Based Diesel RINs under the Renewable Fuel Standard — making it highly strategic for US biofuel producers.
The EU Deforestation Regulation (EUDR) adds a critical compliance layer for South American soy: all shipments must be traceable to individual farm parcels and proven to not be linked to post-2020 deforestation.
Key Advantages
Why Soybean Oil for Biofuel Production?
Massive Global Supply
Over 60 million tonnes/year of soybean oil production globally. Deep liquidity and well-developed global trade infrastructure across three continents.
US RFS D4 RIN Eligible
Soy HVO and FAME qualify for D4 Biomass-Based Diesel RINs under the US Renewable Fuel Standard — valuable compliance credit for US refiners and blenders.
Excellent Cold Flow
High polyunsaturated fatty acid content gives soy-derived FAME and HVO good cold weather performance versus palm-based biodiesel.
Multi-Origin Flexibility
US Gulf Coast, Brazilian Santos/Paranaguá and Argentine Rosario loading ports. ISO tank containers and bulk vessel options. SUAT manages full logistics chain.
Technical Data
Quality Specifications
Standard quality parameters for RBD Soybean Oil as supplied by SUAT Fuels. Crude degummed grades available on request.
| Parameter | Typical Value | Limit | Test Method |
|---|---|---|---|
| Free Fatty Acids (FFA) | <0.05% (RBD) / 0.3–0.8% (Crude) | max 0.1% RBD | AOCS Ca 5a-40 |
| Moisture & Impurities (MIU) | <0.1% | max 0.2% | AOCS Ca 2b-38 |
| Iodine Value | 124–139 g I₂/100g | min 124 | AOCS Cd 1d-92 |
| Phosphorus | <3 ppm (RBD) | max 5 ppm RBD | EN 14107 |
| Sulfur | <5 ppm | max 10 ppm | EN ISO 20846 |
| Water Content | <200 ppm | max 300 ppm | EN ISO 12937 |
| Flash Point | >250°C | — | ISO 2592 |
| Density at 20°C | 0.919–0.925 kg/L | — | EN ISO 3675 |
| Linoleic Acid (C18:2) | 50–60% | — | EN ISO 5508 |
| Linolenic Acid (C18:3) | 5–11% | — | EN ISO 5508 |
Compliance
Regulatory Status & Certifications
EU RED III — Crop-Based + EUDR Requirements
- First-generation crop feedstock — subject to 7% crop cap, single-counted
- Not listed in Annex IX — cannot satisfy ReFuelEU Aviation SAF mandates as standalone
- EUDR compliance required for all South American origins from 2025 — farm-level geolocation data mandatory
- ISCC EU and RTRS certifications cover sustainability and chain-of-custody requirements
- US soybean oil qualifies for D4 RINs under US Renewable Fuel Standard with ISCC US or EPA pathway approval
End Uses
Applications
HVO Renewable Diesel
Hydroprocessed soy oil produces EN 15940-compliant paraffinic diesel. High H₂ consumption due to polyunsaturated profile — managed with optimal pre-treatment.
FAME Biodiesel (SME)
Soy methyl ester for B7/B20 blending in diesel pools. Cold flow advantage vs palm FAME. Iodine value must be monitored for EN 14214 compliance.
US Biofuel (D4 RINs)
Primary feedstock for US biomass-based diesel industry. SBO HVO dominates US renewable diesel capacity additions.
Co-processing
Direct co-feed into petroleum hydrotreaters. Widely practiced in US Gulf Coast refineries for renewable content without dedicated bio-refinery.
Supply Geography
Origins & Availability
The Americas dominate global soybean oil supply. Brazil and Argentina together account for ~55% of global exports. The US is the largest producer for domestic consumption and exports from Gulf Coast terminals. China is a major processing hub for Asian-origin supply. SUAT sources ISCC EU and RTRS certified supply from established traders in all major origins, with full EUDR documentation for South American shipments.