Elemental material balances

The stoichiometry of growth and metabolism can also be described by elemental material balances. This approach can provide an insight into the potential of the organism for biomass or product production, and thus the scope for process improvement. 

An elemental material balance approach to growth stoichiometry requires an empirical formula for dry weight material ... 

Check the elemental material balances. For reference, the molecular weights involved are as follows ... 

The elemental material balances can then be checked. For carbon ... 

Step 6 We can make three independent elemental material balances for the overall process H2, C, and O balances. A CO balance on the reactor plus separator will provide one additional balance. How can we obtain fifth and sixth balances so that the system of equations is determinate One piece of information given in the problem statement that we have not used is the information about the upper limit on the CH4 concentration in the purge stream. This limit can be expressed as z 0.032. Let us make... 

The TBP-GLC s on the liquids are for calculation of yields of various boiling range liquid products. The C/H/S analyses are used for elemental material balance, calculation of heats of reactions and calculation of hydrogen distribution, i.e., hydrogen content of liquid product. From the material balance and the product analyses, a final yield report is made as shown in Table II. With each yield report, the operating conditions are reported which include tube identification, hydrocarbon and water feed rates and pressure and bulk gas temperature profiles. 

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