Palm Oil & PFAD Feedstocks for HVO Renewable Diesel (ISCC Standards)

Palm oil and its refining co-product PFAD (palm fatty acid distillate) are important feedstocks for HVO — hydrotreated vegetable oil, the drop-in renewable diesel that also yields sustainable aviation fuel. For fuel producers, the value is not only in the molecule but in its certification: ISCC EU documentation is what lets a feedstock count toward renewable-energy targets. This guide explains HVO, the role of palm and PFAD, and the compliance that governs the trade.

What HVO Renewable Diesel Is

HVO is produced by hydrotreating fats and oils: hydrogen removes oxygen and saturates the molecules, yielding paraffinic hydrocarbons chemically almost identical to fossil diesel. Unlike conventional biodiesel (FAME), HVO is a true drop-in fuel — it can be used neat or blended at any ratio, has excellent cold performance and long storage stability, and the same process yields sustainable aviation fuel (SAF).

This performance is why HVO demand has grown sharply, pulling a wide range of fats and oils, including palm derivatives, into the renewable-fuel feedstock pool.

Palm Oil and PFAD as Feedstock

palm fatty acid distillate (PFAD) is the free-fatty-acid stream distilled off during physical palm oil deodorization of palm oil, typically 3–5% of the crude oil. As a co-product rather than a primary food oil, PFAD is attractive as an HVO feedstock and, under some frameworks, may qualify as a residue with favourable accounting.

Refined palm oil and palm stearin are also used directly. Their high saturation gives excellent HVO yield and cold properties, though feedstock choice is increasingly driven by regulatory category as much as by chemistry.

ISCC EU Certification and RED II

To count toward EU renewable-energy targets under the Renewable Energy Directive (RED II), a feedstock must be certified sustainable, most commonly through ISCC EU. Certification tracks the material along a chain-of-custody, verifies sustainability criteria, and documents greenhouse-gas values on each delivery.

ISCC uses a mass-balance model, so buyers should confirm valid certificates, GHG data and the sustainability declaration for every parcel — the same rigour applied to RSPO supply-chain models in the food trade.

Greenhouse-Gas Savings and Sustainability Scrutiny

The whole point of certified feedstock is verified GHG reduction versus fossil diesel, calculated across cultivation, processing and transport. Palm-based feedstocks face particular scrutiny over indirect land-use change (ILUC) and deforestation, and EU policy is phasing down high-ILUC-risk crop-based fuels.

Credible supply therefore pairs ISCC certification with EUDR deforestation compliance deforestation-free evidence and supply-chain traceability to origin, so buyers can defend the sustainability claim.

Supply, Handling and Logistics

PFAD is solid at ambient temperature and mildly corrosive, so it ships in heated tanks with compatible linings, following the same temperature and heating guidelines as other palm fractions. Specifications to confirm include FFA, moisture, impurities and total contaminants.

For fuel producers, reliable supply means contracting parcels with certification, GHG data and quality all documented up front, avoiding compliance gaps at delivery.

Sustainable Aviation Fuel and the Wider Fuel Slate

The same hydrotreating platform that makes HVO renewable diesel also produces sustainable aviation fuel (SAF) when the product is fractionated to jet range. With aviation under mounting pressure to decarbonise, SAF demand is adding a second, high-value pull on certified fats and oils, including palm co-products.

This widening slate raises competition for feedstock and sharpens the importance of secure, certified supply contracts. Producers increasingly value co-products such as PFAD precisely because they extend the feedstock base without diverting primary food oil.

Contract Terms and Quality Specifications

Feedstock contracts should nail down both sustainability and quality. On sustainability: valid ISCC EU certificates, greenhouse-gas values, and the sustainability declaration for each parcel. On quality: free fatty acid, moisture and impurities, total contaminants, and any limits on metals or mineral oil (MOSH/MOAH) that affect the catalyst.

Because PFAD and palm stearin solidify at ambient temperature, delivery terms must also specify heating and lined tankage per standard transit temperature guidelines. Settling these up front prevents the certification and quality gaps that most often delay renewable-fuel cargoes at delivery.

Feedstock Categories and Policy Incentives

Under renewable-fuel policy, not all feedstocks are counted equally. Primary crop oils face caps and phase-downs in some jurisdictions, while genuine wastes and residues may attract multiple counting or higher incentives. This is why the regulatory classification of a palm derivative — food oil, co-product, or residue — can matter as much as its chemistry to a fuel producer’s economics.

PFAD sits at the centre of this debate: its status varies between frameworks, so buyers must confirm exactly how a given parcel will be treated under the scheme they operate in before valuing it as feedstock.

Due Diligence for Renewable-Fuel Buyers

Fuel buyers should verify three things per parcel: a valid ISCC EU certificate covering the chain of custody, the greenhouse-gas value and sustainability declaration, and the physical quality (FFA, moisture, impurities, metals). Deforestation-free evidence aligned with EUDR deforestation compliance strengthens the sustainability claim.

Because policy is evolving quickly, contracts should also address what happens if a feedstock’s regulatory status changes mid-term. Settling certification, GHG data, quality and this contingency up front is what separates a reliable feedstock supply from a compliance liability.

Handling, Corrosivity and Storage of PFAD

PFAD is a hard, waxy solid at ambient temperature with a high free-fatty-acid content, which makes it mildly corrosive to ordinary carbon steel. It is therefore stored and shipped in heated tanks with compatible linings or stainless steel, kept molten for pumping but not overheated.

Handlers follow the same temperature and heating discipline used for palm stearin: controlled heat-up rates to avoid localized degradation, and moisture exclusion to limit further hydrolysis. Getting handling right protects both the feedstock quality and the equipment, and it is a routine line item in well-drafted PFAD supply contracts.

Frequently Asked Questions