Question

In cement manufacturing industry the material calcium carbonate is decomposed to calcium oxide and carbon dioxide using high temperature however due to temperature distribution difference the raw material is not decomposed with one pass operationin the reactor. the recycle of unconverted raw material is needed and a portion of reactor out put is recycled. carbon dioxide is only removed from the reactor in one stream and the overall product is collected in the product stream. the feed flow rate is 10000kg/h and the overall conversion is in product stream assume that the mass flow rate ratio of the recycle stream to product stream is 0.1
the reaction is CaCo3 → CaO + Co2
a. determine the mass flow rates of gas stream and product stream
b.the mass fractions of the product stream
c.the mass flow rates of the product stream.

Answer 1

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