Castor Oil for Bio-Energy: Solutions for Biodiesel and SAF

THE CHALLENGE: Scalable Sustainable Energy

The global energy sector is at a crossroads. First-generation biofuels (Soy, Palm) compete with food security. Waste oils (UCO) suffer from supply chain volatility and inconsistent quality.

The Solution is Castor Oil. As a Virgin Non-Edible Feedstock, Castor Oil bridges the gap. It offers the scalability of an agricultural crop without the ethical dilemma of "Food vs. Fuel," and the chemical purity of a manufactured product without the impurities of waste streams. At Marilink Exports, we aggregate and export high-ricinoleic Castor Oil directly from Gujarat, India - the world’s epicenter of castor cultivation, to bio-refineries globally.

FOR AVIATION: The SAF Advantage

The aviation industry faces the hardest path to decarbonization. Jet engines operating at 30,000 feet require fuel that remains fluid at sub-zero temperatures while delivering maximum energy density.

Why Castor Oil is the Ideal HEFA Feedstock:

Castor Oil distinguishes itself as the ideal feedstock for the Hydroprocessed Esters and Fatty Acids (HEFA) pathway due to its unique chemical architecture. When processed, it yields a high-performance Synthetic Paraffinic Kerosene (SPK) that rivals conventional Jet A-1 fuel in energy density while significantly reducing sulfur and particulate emissions. Crucially for aviation safety, Castor derivatives possess superior cold-flow properties, ensuring stability in sub-zero environments. These factors combined with its exceptional lubricity and carbon-negative cultivation potential, are driving major energy players to adopt Castor Oil as a primary blend component for the next generation of Sustainable Aviation Fuel (SAF)

FOR BIO DIESEL: Performance Beyond Sustainability

Leveraging the unique hydroxyl functionality Castor Oil is not just a fuel source; it is a performance additive. Modern Ultra-Low Sulfur Diesel (ULSD) often suffers from poor lubricity, leading to engine wear. While standard biodiesels are often viewed solely as carbon-reduction tools, Castor Oil methyl esters serve a dual purpose: Decarbonization and Mechanical Protection.

• The Lubricity Factor: Modern high-pressure common rail (HPCR) diesel engines are intolerant of low-lubricity fuels. Castor Oil provides superior boundary lubrication compared to conventional vegetable oils. Its unique molecular structure creates a stronger protective film on metal surfaces, dramatically reducing friction and wear in fuel injection equipment even at low blend ratios (B5).

• Oxidative Stability & Cold Flow: Fuel stability is critical for industrial reliability. Thanks to the unique chemistry of Ricinoleic Acid, Castor-based biodiesel resists the oxidative degradation that plagues other bio-oils. This ensures that fuel remains clear and free of gums and sediments during long-term storage, protecting filtration systems and ensuring immediate start-up reliability for backup generators and heavy machinery.

SUSTAINABILITY & ESG PROFILE

Sourcing with Purpose: Marilink Exports roots its sustainability mission in the arid heart of Gujarat, India.

• Carbon Sequestration: Castor plants have a high carbon absorption rate during their growth cycle, often referred to as "Carbon Farming."

• No Water Stress: The crop is naturally drought-resistant and thrives on marginal land, ensuring we do not deplete scarce water resources.

• Rural Empowerment: Our trade directly supports the livelihoods of thousands of small-holder farmers, creating a sustainable economic cycle in developing regions.

WHY PARTNET WITH MARILINK EXPORTS? 

Partnering with Marilink Exports means securing a strategic link directly to the source. Operating from Gujarat, India, we manage the entire supply chain from farm gate to port, ensuring origin authenticity and supply security. We are built for scalability, capable of delivering flexible logistics ranging from ISO tanks for pilot testing to bulk vessel loads for industrial refining. Most importantly, we safeguard your production through rigorous quality assurance; every lot is tested for critical parameters, such as FFA, moisture, and impurities, to ensure your refinery yields remain high, predictable, and profitable."

TECHNICAL SPECIFICATIONS

Feedstock Parameters We provide First Special Grade (FSG) and BSS Castor Oil optimized for transesterification and hydroprocessing.

• Ricinoleic Acid: 85% Min (Ensuring high polarity & reactivity)

• Free Fatty Acid (FFA): 0.75% - 1.0% Max (Low FFA is critical for refinery efficiency)

• Moisture & Volatiles: 0.25% Max (Prevents catalyst poisoning)

• Iodine Value: 82 - 90

• Saponification Value: 177 - 187

Secure Your Renewable Feedstock Supply. Don't let supply chain volatility disrupt your production. Partner with Marilink Exports for a reliable, sustainable stream of premium Castor Oil.