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NEED HELP ASAP PLEASE! Please show all steps to calculations. Model a two - stage fermentation system for conversion of syngas into ethanol. Write a
NEED HELP ASAP PLEASE! Please show all steps to calculations.
Model a twostage fermentation system for conversion of syngas into ethanol.
Write a general set of differential equations describing the production of ethanol E from syngas using a microbe X The system consists of three vessels:
Seed reactor This reactor has volume V The substrate, syngas, which is a mixture of CO CO and H gases, enters in the stream FSG In addition, ammonia N is added as the nitrogen source along with the microbe X which consumes the gaseous substrates following Simple Monod Kinetics. The microbe produces acetic acid A which is fed to the production reactor the bubble column All excess gas leaves the reactor in the exhaust to be recycled not shown
Bubble column This vessel with volume V is the reactor where acetic acid is converted to ethanol E by the cells X The syngas mixture is introduced FSG and the outgoing stream passes through a hollow fibre module that separates the cells, which are then recycled back into the column.
Hollow fibre module This module with volume V is where the cells are separated from the media. The cells are recycled back to the bubble column and the media containing ethanol is collected in stream F
Summary of variables to be used:
X g dry Xcells L A g Acetic acidL E g EthanolL
N g NHL F volumetric flow rate in Lhr V volume of reactor in L
SG g syngasL FSG volumetric flow rate of syngas in Lhr
Note: Use subscripts appropriately to denote stream and vessel numbers. Include any necessary yields, growth kinetics etc.
You can assume the following:
All vessels are perfectly mixed
The densities in all streams and vessels are constant
Model the syngas mixture, not the individual components
Perfect separation occurs in the hollow fibre module
All acetic acid is consumed and converted to ethanol in the bubble column
a Write the Mathematical Model for the Seed reactor marks
b Write the Mathematical Model for the Bubble column marks
c Write the Mathematical Model for the Hollow fibre module marks
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