Biodiesel Antioxidants
Oxidation Stability Solutions for FAME & Renewable Fuel Blends
Oxidation is one of the biggest threats to fuel quality—especially in biofuels like FAME, biodiesel, and low-sulfur diesel blends. Exposure to oxygen, heat, light, or trace metals can trigger degradation, resulting in:
Rodanco supplies a portfolio of high-performance antioxidant systems designed to protect biodiesel quality from production through long-term storage and distribution.
The Oxidation Challenge in Biodiesel
FAME fuels degrade rapidly when exposed to:
Oxygen
Heat
Light
Trace metals
Uncontrolled oxidation may result in:
Gum and sludge formation
Increase in acid number
Filter blocking and poor combustion
Loss of fuel quality
Failure to meet EN 14214 oxidation stability requirements
Maintaining oxidation stability is essential to ensure specification compliance, engine protection, and export reliability.
Our Antioxidant - Technology
Rodanco offers concentrated liquid antioxidant blends developed specifically for biodiesel and FAME blends with high oxidation sensitivity.
Our systems:
- Interrupt oxidative chain reactions
- Extend oxidation induction periods
- Preserve fuel integrity during storage
- Reduce acid formation and deposit build-up
- Support consistent compliance with international fuel standards
Our antioxidant portfolio includes:
- Phenolic-based systems for low-to-medium unsaturation feedstocks
- High-activity blends for highly unsaturated biodiesel (e.g. sunflower, soybean)
- Solutions optimized for waste-based biodiesel (UCO, tallow)
- Liquid formulations for easy dosing and blending
Performance & Validation
Our antioxidant systems have been validated using EN 14112 (Rancimat) methodology to evaluate oxidation stability.
Independent laboratory testing confirms:
Significant extension of oxidation induction periods
Improved stability after extended storage (10–20+ days and beyond)
Reliable compliance with EN 14214 requirements
This long-term stability is particularly critical in export-driven markets where logistics and storage duration directly influence fuel quality.
Optimized for Sensitive Feedstocks
Certain biodiesel types are more prone to oxidation due to higher iodine values and unsaturated fatty acid content.
Rodanco antioxidants are especially effective in:
Sunflower Methyl Ester (SunFME)
Soy Methyl Ester (SME)
Rapeseed Methyl Ester (RME)
Used Cooking Oil Methyl Ester (UCOME)
Animal fat-based biodiesel
Application & Dosage
Recommended dosage depends on:
- Natural oxidation stability of the biodiesel
- Feedstock composition
- Iodine value
- Storage duration and conditions
Typical dosage range: 50 – 800 ppm
(Higher treat rates may be required for highly unsaturated feedstocks or extended storage.)
Rodanco supports customers with laboratory testing and treat-rate optimization to ensure cost-effective performance.
Key Advantages
Designed specifically for biodiesel (FAME) applications
Effective in B100 and biodiesel blends
Liquid formulations for easy handling and dosing
Compatible with common cold flow improvers
Suitable for blending terminals and storage facilities
High flash point and complete combustion profile
Compliance & Quality
Rodanco antioxidant systems support compliance with:
- EN 14214
- DIN EN 14112 (Rancimat testing)
- ASTM D6751 (where applicable)
Products are supported by testing from independent ISO/IEC 17025 accredited laboratories.
Typical Applications
Biodiesel producers
Fuel blenders
Storage terminals
Traders handling long-term storage or export cargo
Renewable fuel supply chains
Packaging & Handling
Supplied in IBC containers
Bulk delivery available
Other packaging options upon request
MSDS available on request
Technical Support
Rodanco provides:
Stability testing support
Feedstock-specific treat-rate recommendations
Storage optimization guidance
Performance validation data
We work closely with biodiesel producers to ensure consistent fuel quality across the entire supply chain.