Cat-to-oil coke

Decreasing the specific heat of combustion increases the amount of the coke that must be burned the coke component that increases is essentially the cat-to-od coke, which is increased by increasing the catalyst circulation rate. Cat-to-oil coke can be expressed as (20) ... 

Cat-to-oil coke - hydrocarbons which are not stripped by steam in the stripper and are left... 

---