Suggested Response - Q2

* In one month, you filled and fermented 25 of the fermenters described in question one above. Your CO2 recovery plant operated with a 50% overall collection efficiency. How much CO2 would you have collected into storage?

Response:

Firstly, we can work out the idealised total quantity of CO2 produced by twenty-five fermenters:

M a s s space o f space C O subscript 2 space equals space 10 comma 358.6 space cross times space 25 space equals space 258 comma 956 space k g

Remember that the overall collection efficiency of the recovery plant is the ratio of the mass of purified CO2 collected into storage to the idealised quantity produced:

C o l l e c t i o n space e f f i c i e n c y space left parenthesis percent sign right parenthesis space equals space 100 space cross times space fraction numerator m a s s space s t o r e d over denominator i d e a l space m a s s space p r o d u c e d end fraction space equals space 50 percent sign

Rearranging for the mass purified and put into storage:

M a s s space s t o r e d space equals space 0.5 space cross times space i d e a l space m a s s space p r o d u c e d

M a s s space s t o r e d space equals space 0.5 space cross times space 258 comma 965 space equals space 129 comma 482.5 space k g

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