How does the chemical recycling of polystyrene to styrene impact CO2 ​emissions compared to producing fuels, and what are the associated abatement costs?

Label:chem

Topic
The study analyzes CO2 emissions for two scenarios: pyrolysis to produce crude oil for fuel and pyrolysis to produce styrene monomer (60%) and fuel (40%).
Answer
Producing styrene from polystyrene chemical recycling can reduce CO2 emissions by approximately 50% compared to pyrolyzing polystyrene solely for fuel production, as the styrene product is not combusted. The CO2 abatement costs for converting polystyrene to monomer and fuels are approximately $1.5 per ton of averted CO2.
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