Questions regarding technical terms related to catalytic devices
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What do several technical terms in catalytic units mean: reaction depth, severity, total liquid yield, overall yield, and recycled oil? Could some expert out there help explain these?
I don’t understand either – offering a reward is a concept meant to get you 5 wealth points
Reaction depth and reaction severity are two qualitative concepts; sometimes reaction depth can be expressed by conversion rate, while severity can be indicated by reaction temperature or catalyst activity. The total liquid yield generally includes liquefied gas + gasoline + light diesel + heavy diesel + oil slurry. The light liquid yield usually consists of liquefied gas + gasoline + light diesel, while the yield of light oils generally includes gasoline + light diesel. Heavy recycled oil is a concept related to recycling, equivalent to reprocessed oil in China; light recycled oil corresponds to light diesel in China.
I suggest you buy a book titled Questions and Answers on Catalytic Cracking Technology, the second edition