Material before machinery.
A conversion system processes real material, not marketing categories. Feedstock composition governs chemistry, energy demand, product quality, emissions and process stability.
Plastics
Polymer type, chlorine, bromine, additives, fillers and contamination can materially alter thermochemical behaviour and downstream product quality.
Rubber & Tyres
Tyres combine natural and synthetic rubber, carbon black, steel, sulphur, zinc, textiles and additives. Their recovery pathways must follow each fraction.
Biomass
Cellulose, hemicellulose, lignin, moisture, ash and minerals vary substantially between woody and agricultural feedstocks.
Bio-Organics
Wet bio-organics can impose substantial drying and energy burdens. Technical treatability does not automatically make dry thermochemical treatment the preferred route.
Medical Waste
Medical waste is a specialist public-health field, not one feedstock. Infectious, sharps, pharmaceutical, cytotoxic, chemical, radioactive and general wastes require classification before treatment selection.
Preprocessing and consistency
Sorting, drying, shredding, contaminant removal, blending and feed control may be required to transform variable material into a processable feedstock. These steps belong inside the system boundary.