greenplan:
MILP SINGLE PERIOD MODEL FOR SELECTION OF PROCESSNETWORKS TO MAX. NET PRESENT VALUE AND MIN. TOXICITY

A. Türkay, R. Drabbant,I. E. Grossmann and R.K. Jain

 

Screen Shots:
Initial screen
Run model
Output
 
Data Input:
Data interactive input
Data file


Objective:
Optimization tool for bi-criterion optimization in process networks:

  • Max Net Present Value

  • Min Toxicity

Features:

  • Data base 750 chemical processes and 1000 chemicals

  • Mass balance, economic information, lethal dose (LD-50)

  • Automated interface with MILP optimization

  • Menu driven for exploring options

  • Plotting Capabilities:

    • NPV vs. Toxicity trade-offs

    • Optimal network structure

    • Implementation in UNIX workstations

Model:

I.Network of processes and chemicals with sales and purchases of materials

II.Mixed-Integer linear program (MILP):

  • Max Net Present Value

  • Min Toxicity subject to

    • Mass balances

    • Capacity constraints

    • Logic for process selection

Notes :

  • Network can be specified or automatically generated

  • Data extracted from data-base

  • Solutions:

    • Utopia point

    • Best compromise

    • Trade-off curve

GREENPLAN has been developed by Arzu Türkay and database produced by Christine Shambach under the supervision of Ignacio E. Grossmann .

References for GREENPLAN:

I. E. Grossmann, R. Drabbant and R. K. Jain, Incorporating Toxicology in the Synthesis of Industrial Chemical Complexes , Chem. Eng. Commun.Vol. 17, pp. 151-170, 1982.

T&uumlrkay, Arzu, Guidelines for GREENPLAN Interface, Carnegie Mellon University, Engineering Design Research Center, Pittsburgh, PA.