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A stover-to-ethanol plant produces 40,000 tonne/ year of ethanol and contains 8 functional units: feedstock handling, pretreatment, simultaneous saccharification/fermentation distillation, solid/ sirup separation, wastewater treatment, boilers, and turbogeneration/utilities (McAloon et al., 2000). Estimate the FCI of the plant using the empirical correlation based on the work of Bridgwater and Mumford (1979).

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Answer:

$88 Million

Explanation:

Data provided in the question:

Amount of ethanol produced by stover-to-ethanol plant, F = 40,000 tonne/ year

Number of functional units, N = 8

Now,

For F < 60,000 tonne/ year

The FCI of the plant is given as

FCI = 458,000 × N × [tex]\text F^{0.3}[/tex]

On substituting the respective values, we get

FCI = 458,000 × 8 × [tex]\text 40,000^{0.3}[/tex]

or

FCI = 3,664,000 × 24.0225

or

FCI = $88018398.52 = $88 Million

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