Addressing criticality for rare earth elements in petroleum refining: The key supply factors approach

In “A brief examination of supply and demand in REEs” section we briefly discuss the supply and demand for REEs. “REEs in petroleum refining” section examines the importance of REEs in fluid catalytic Cracking, the largest domestic U.S. use of REEs. “Determining REE criticality: The key supply risk methodology” section presents our key supply factor methodology of addressing the criticality of REEs. In “Scenario analysis” section we apply our methodology to three different possible scenarios affecting U.S. REE markets. “Example of criticality index for cerium considering the increased domestic supply scenario” section contains the results we derive from our methodology. Our conclusions are in “Criticality indexes: Results” section.