2023 Volume 19 Issue 3 Pages 117-126
Toward transition to the decarbonized society and the circular economy, quantitative evaluation of the reduction effect of environmental burdens by recycling of plastics has been regarded as important. In this article, recent domestic and overseas reports of LCA studies on recycling （material and chemical recycling） and energy recovery are reviewed, with the focus on the reduction effect of climate change impact including CO2 emissions. Those studies are discussed from the viewpoints of specification of system boundaries and substituted products, the evaluation methods of reduction effects, and comparison of a variety of recycling methods and energy recovery.
