Section 326IAC1-2-9. "Catalytic cracking unit" defined  


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  •    A unit composed of a reactor, regenerator, and fractionating tower which is used to convert certain petroleum fractions into more valuable products by passing the material at elevated temperature, through a bed of catalyst in the reactor. Coke deposits produced on the catalyst during cracking are removed. (Air Pollution Control Division; 326 IAC 1-2-9; filed Mar 10, 1988, 1:20 pm: 11 IR 2370)