The calculation result of ecoinvent 3.10 is larger than 3.9.1

Question

Hi

I found that the calculation result of ecoinvent 3.10 is larger than 3.9.1.

For example process PET、Pentaerythritol. When I used IPCC GWP 2021 for calculation, there was a significant difference in the calculation results between the two database versions.

Is there an error in the database?

Answer 1

"Furthermore, a collaboration between IFEU, PlasticsEurope and ecoinvent has added improved level of disaggregation for steamcracking and the production of polyolefins (PE, PP), PVC and PET, which increased the transparency of these processes."

"As a result of the above updates, the average carbon footprint of crude oil and natural gas and derived products have increased significantly between ecoinvent versions 3.8 and the latest version 3.10. The footprint of fossil naphtha has almost doubled and those for commodity plastics have increased by around 30% (PET 26%, PE 34% and PP 30%)."

https://renewable-carbon.eu/news/products-made-from-crude-oil-have-a-significantly-higher-co2-footprint-than-previously-assumed/

ecoinvent Documentation:

Report of Changes

Comments

Thanks a lot ~~~~