catalytic cracking
noun
: cracking of petroleum oils (as gas oils or diesel oils) especially for the production of high-octane gasoline in the presence of a catalyst (as clay) in various forms (as pellets or beads either stationary in a fixed bed or moving through the oil or as a fine powder fluidized by a stream of air or hydrocarbon vapors)
—distinguished from thermal cracking
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“Catalytic cracking.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catalytic%20cracking. Accessed 29 Nov. 2024.
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