NYX is active across multiple Co-Processing pathways, depending on the renewable or circular input stream introduced into refinery units. Each pathway results in co-processed refinery products integrating renewable or circular carbon.

Fatty acid Co-Processing focuses on high-purity FFA streams with favorable conversion properties. These inputs are often used to optimize hydrogen consumption and process efficiency in hydroprocessing units.

Triglyceride-based Co-Processing is one of the most established pathways. Renewable oils are processed alongside fossil streams, producing drop-in refinery fuels compatible with existing distribution systems.

Co-Processing using tire pyrolysis oil integrates circular carbon streams derived from end-of-life tires into refinery hydroprocessing units. This pathway supports circular economy strategies and waste-to-fuel integration, subject to unit configuration and pre-treatment requirements.

Certain waste-derived oils can be integrated into Co-Processing schemes, depending on quality and refinery constraints. These pathways support waste valorization while maintaining refinery performance.

Hybrid Co-Processing combines multiple renewable and circular inputs—such as acid oils, fatty acids, and pyrolysis oils—within structured refinery programs. NYX supports the design and execution of such multi-input strategies.