Meaning
Carbon accounting protocols allocate environmental attributes to co-products based on the chemical energy recovered from chemical recycling reactors. Using furnace off-gas attribution, petrochemical plants deduct the energy value of secondary gases generated during plastics pyrolysis to calculate the net mass balance of circular polymers. This prevents the double-counting of recycled inputs by separating fuel usage from material feedstock claims.
It ensures that the recycled polymer output accurately reflects the physical mass of waste plastics introduced into the cracker. The process holds a boundary between material recovery and energy recovery.
Feedstock Yield
Pyrolysis processes convert mixed plastic waste into liquid and gaseous fractions. Utilizing furnace off-gas attribution allows cracker operators to determine how much ethylene and propylene is derived from the circular feedstock. This calculation affects the premium price of the resulting circular resins.
Cracking Optimization
Cracker furnaces operate at extreme temperatures to break down hydrocarbons. Implementing furnace off-gas attribution helps engineers assess the thermal contribution of recycled gases, which reduces the reliance on fossil fuels. This thermal integration lowers the carbon footprint of the plastic manufacturing process.
Material Certification
Auditing firms verify the mass balance ledger before issuing compliance certificates. A transparent furnace off-gas attribution system provides the documented proof required to justify the recycled content claims on the moulder’s datasheet. This increases the commercial value of the molded part.
