Extended Data Fig. 10: Flowchart showing the calculation steps for refining CI at crude-, refinery-, and country-level. | Nature Climate Change

Extended Data Fig. 10: Flowchart showing the calculation steps for refining CI at crude-, refinery-, and country-level.

From: Carbon intensity of global crude oil refining and mitigation potential

Extended Data Fig. 10

Refinery-level refining CI (kg CO2eq bbl−1) is calculated by running each crude assay separately via PRELIM and take the volume-weighted-average. Note for destination country refining CI, n is the number of crudes refined at a refinery; m is the number of refineries located in a destination country; for source country refining CI, j is the number of refineries that process a crude, and k is the number of crudes produced from a source country.

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