Extended Data Fig. 9: Crude-level volume-weighted-average refining CI curve in 2015 (by crude quality). | Nature Climate Change

Extended Data Fig. 9: Crude-level volume-weighted-average refining CI curve in 2015 (by crude quality).

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

Extended Data Fig. 9

Curve is sorted by increasing CI (kg CO2eq bbl−1). Colour scheme reflects crude quality grouping. Crude oils are classified into light (API gravity > 32°), medium (22° < API gravity ≤ 32°), and heavy (API gravity ≤ 22°) based on API gravity, and sour (sulfur wt% > 0.5) and sweet (sulfur wt% ≤ 0.5) based on sulfur content (See Supplementary Table 4 for more details on crude oil quality classification).

Back to article page