1) Petroleum refining catalysts (FCC): the biggest industrial anchor
Lanthanum's most important industrial role is in petroleum refining, where lanthanum-containing rare-earth components are used in fluid catalytic cracking (FCC) catalyst systems.
What lanthanum is doing (in plain language)
FCC catalysts rely heavily on zeolite Y chemistry.
Lanthanum exchange and related rare-earth modifications help stabilize catalyst structure and maintain performance under harsh conditions (high temperature, steam, contaminants).
What drives lanthanum demand here
- Refinery throughput and FCC utilization rates
- Catalyst replacement cycles (catalyst "make-up" rates)
- Fuel specification shifts and refinery configuration changes that alter catalyst formulations