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Engineering, 09.06.2020 16:57 tobi15

A facility with 100 L fermentation broth production capacity, will produce bioethanol from Saccharomyces cerevisiae. 1.Accordingly, calculate the stirred tank reactor volume, reactor dimensions (reactor diameter, length, number of impeller, impeller diameter, distance between, etc.).

2.Identify the downstream processes to be installed at this facility and calculate the annual production capacity for 80% yield at each stage.

3.What percentage of our country's production can meet this production capacity?

4.It is planned to use disk centrifuge for cell removal. Calculate the centrifuge speed and time.

5.If sedimentation was used instead of centrifuge, what would be the time necessary to fall down all cells to the bottom of the tank? Compare in terms of efficiency and cost.

6.Glucose will be used as substrate for biotransformation. Taking into account the microorganism production capacity and maintenance, determine the yield, productivity, annual operating cost and investment cost calculations related to production.

7.Also, determine the Monod kinetic constants.

8.Bioethanol production is an anaerobic process. However, suppose that at the beginning of the fermentation, 5 L / min of air was fed to increase the number of cells. Calculate the oxygen transfer rate and oxygen consumption rate.

*You can make the appropriate assumptions for each question (by citing references you used) for the microorganism, cell diameter, production mode, duration and other values to be used in production.

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