4.62 Bioengineering Application *Oxygen consumed by a living organism in aerobic reactions is used in adding mass to the organism and/or the production of chemicals and carbon dioxide. Since we may not know the molecular compositions of all species in such a reaction, it is common to define the ratio of moles of CO2 produced per mole of 02 consumed as the respiratory quotient, RQ, where n CO₂ nco₂ or RQ = Since it generally is impossible to predict values of RQ, they must be determined from operating data. Mammalian cells are used in a bioreactor to convert glucose to glutamic acid by the reaction C6H12O6aNH3 + bO₂ →>> · pC5H9NO4 + qCO2 + rH₂O The feed to the bioreactor comprises 1.00 × 10² mol C6H12O6/day, 1.20 × 10² mol NH3/day, and 1.10 × 10² mol 02/day. Data on the system show that RQ=0.45 mol CO2 produced/mol O2 consumed. (a) Determine the five stoichiometric coefficients and the limiting reactant. (b) Assuming that the limiting reactant is consumed completely, calculate the molar and mass flow rates of all species leaving the reactor and the fractional conversions of the non-limiting reactants.
4.62 Bioengineering Application *Oxygen consumed by a living organism in aerobic reactions is used in adding mass to the organism and/or the production of chemicals and carbon dioxide. Since we may not know the molecular compositions of all species in such a reaction, it is common to define the ratio of moles of CO2 produced per mole of 02 consumed as the respiratory quotient, RQ, where n CO₂ nco₂ or RQ = Since it generally is impossible to predict values of RQ, they must be determined from operating data. Mammalian cells are used in a bioreactor to convert glucose to glutamic acid by the reaction C6H12O6aNH3 + bO₂ →>> · pC5H9NO4 + qCO2 + rH₂O The feed to the bioreactor comprises 1.00 × 10² mol C6H12O6/day, 1.20 × 10² mol NH3/day, and 1.10 × 10² mol 02/day. Data on the system show that RQ=0.45 mol CO2 produced/mol O2 consumed. (a) Determine the five stoichiometric coefficients and the limiting reactant. (b) Assuming that the limiting reactant is consumed completely, calculate the molar and mass flow rates of all species leaving the reactor and the fractional conversions of the non-limiting reactants.
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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Transcribed Image Text:4.62 Bioengineering Application *Oxygen consumed by a living organism in aerobic reactions is used in adding mass to the organism and/or the production of chemicals and
carbon dioxide. Since we may not know the molecular compositions of all species in such a reaction, it is common to define the ratio of moles of CO2 produced per mole of
02 consumed as the respiratory quotient, RQ, where
n CO₂
nco₂
or
RQ
=
Since it generally is impossible to predict values of RQ, they must be determined from operating data.
Mammalian cells are used in a bioreactor to convert glucose to glutamic acid by the reaction
C6H12O6aNH3 + bO₂ →>> · pC5H9NO4 + qCO2 + rH₂O
The feed to the bioreactor comprises 1.00 × 10² mol C6H12O6/day, 1.20 × 10² mol NH3/day, and 1.10 × 10² mol 02/day. Data on the system show that
RQ=0.45 mol CO2 produced/mol O2 consumed.
(a) Determine the five stoichiometric coefficients and the limiting reactant.
(b) Assuming that the limiting reactant is consumed completely, calculate the molar and mass flow rates of all species leaving the reactor and the fractional conversions of
the non-limiting reactants.
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