Problem 2) (g) → C2H3OOH (aq) + H2O (1I)] using the bacterium Acetobacter acetii. Such processes are used in the commercial production of vinegar. In this process, a bioreactor that contains 65 kg of bacteria is charged with 9.50 x 10 L of a solution of ethanol and water that is 6.9% by weight ethanol and has Consider a bioprocess to generate acetic acid from ethanol [C2H5OH (aq) + O2
Problem 2) (g) → C2H3OOH (aq) + H2O (1I)] using the bacterium Acetobacter acetii. Such processes are used in the commercial production of vinegar. In this process, a bioreactor that contains 65 kg of bacteria is charged with 9.50 x 10 L of a solution of ethanol and water that is 6.9% by weight ethanol and has Consider a bioprocess to generate acetic acid from ethanol [C2H5OH (aq) + O2
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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![Consider a bioprocess to generate acetic acid from ethanol [C2H5OH (aq) + O2
(g) → C2H30OH (aq) + H20 (1)] using the bacterium Acetobacter acetii. Such processes are used in
the commercial production of vinegar. In this process, a bioreactor that contains 65 kg of bacteria is
charged with 9.50 x 103 L of a solution of ethanol and water that is 6.9% by weight ethanol and has
Problem 2)
a specific gravity of 0.988. Please note that the solution is formulated such that the bacteria can
metabolize ethanol to acetic acid, but cannot grow. Dry air (79.0% N2 and 21.0% O2) is bubbled from
the bottom of the reactor at a flowrate of 43 SCMH. A gas effluent exits the top of the reactor and
during the bioconversion it is devoid of O2. The process begins and operates at 28 °C and 1 atm, and
the gaseous feed enters at 25 °C.
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b) Please assume that the gaseous effluent is at 28 °C, that the water vapor in it has reached its
vapor pressure, and that it is devoid of ethanol and acetic acid. Perform a material balance on the
system to determine the mass of the aqueous bacterial solution at the end of the fermentation](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd8f6fd41-6206-4584-8c66-7ca48c693adf%2F7cc58f49-a358-43d4-a36d-83ee5d249445%2F5ga4v8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Consider a bioprocess to generate acetic acid from ethanol [C2H5OH (aq) + O2
(g) → C2H30OH (aq) + H20 (1)] using the bacterium Acetobacter acetii. Such processes are used in
the commercial production of vinegar. In this process, a bioreactor that contains 65 kg of bacteria is
charged with 9.50 x 103 L of a solution of ethanol and water that is 6.9% by weight ethanol and has
Problem 2)
a specific gravity of 0.988. Please note that the solution is formulated such that the bacteria can
metabolize ethanol to acetic acid, but cannot grow. Dry air (79.0% N2 and 21.0% O2) is bubbled from
the bottom of the reactor at a flowrate of 43 SCMH. A gas effluent exits the top of the reactor and
during the bioconversion it is devoid of O2. The process begins and operates at 28 °C and 1 atm, and
the gaseous feed enters at 25 °C.
зе с.
ate
fe
uf
b) Please assume that the gaseous effluent is at 28 °C, that the water vapor in it has reached its
vapor pressure, and that it is devoid of ethanol and acetic acid. Perform a material balance on the
system to determine the mass of the aqueous bacterial solution at the end of the fermentation
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