- rare earth Y zeolite
- abbr. REYA cracking catalyst component made by ion exchanging rare earth (lanthanide) metals into sodium Y molecular sieves. See: rare earth, type Y zeolite.
Petroleum refining glossary. 2013.
rare earth Y zeolite
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rare earth ultra stable Y zeolite — abbr. REUSY A cracking catalyst component made by ion exchanging rare earth (lanthanide) metals into ultra stable type Y molecular sieves. See: rare earth, USY, type Y zeolite … Petroleum refining glossary
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REY — abbr. for rare earth Y zeolite … Petroleum refining glossary
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