Continuous Stoichiometric Fermentation

General Description

The stoichiometric fermentation model can be used to simulate biotransformations when the reaction kinetics are unknown or unimportant but the mass stoichiometry is known and the extent of reaction can be specified or calculated based on the concentration of a reference component. The extent of reaction is defined as the fractional conversion of the limiting component.

Unit Procedure Availability

      Continuous Stoichiometric Reaction Procedure in a Fermentor

Continuous Stoichiometric Fermentation: Modeling Calculations

Material Balances

See Batch Stoichiometric Fermentation: Modeling Calculations.

Equipment Sizing

See Vessel Sizing (Continuous Operations).

Equipment Purchase Cost

The equipment purchase cost includes the cost of the vessel along with the agitator cost. If the vessel is checked as an ‘ASME Vessel’ (i.e., constructed according to standards published by the American Society of Mechanical Engineers) then it assumed to withstand vacuum to 35 psig and its purchase cost is penalized by 20% over the base vessel cost. If the operating pressure of the vessel is set to a pressure higher than 3 atm, then the vessel’s purchase cost is penalized by an 80% increase over the base cost.

Vacuum Pump Power Consumption

See Vacuum Pump Auxiliary Equipment Calculations.

Continuous Stoichiometric Fermentation: Interface

The interface of this operation has the following tabs:

      Oper. Cond’s, see Continuous Fermentation Operations: Oper. Conds Tab

      Volumes, see Continuous Vessel Operations (Design Mode): Volumes Tab and Continuous Vessel Operations (Rating Mode): Volumes Tab

      Reactions, see Stoichiometric Reaction/Fermentation Operation: Reactions Tab

      Split, see Continuous Reaction / Storage Operations: Split Tab

      Vent/Emissions, see Reaction Operations: Vent/Emissions Tab

      Labor, etc, see Operations Dialog: Labor etc. Tab

      Description, see Operations Dialog: Description Tab

      Batch Sheet, see Operations Dialog: Batch Sheet Tab

      Scheduling, see Operations Dialog: Scheduling Tab