SOLUTION APPROACH – COMBINATORIAL PROCESS SYNTHESIS
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SOLUTION APPROACH – COMBINATORIAL PROCESS SYNTHESIS. Energy from External Sources ($9.0/MBTU) Energy from Gas-Fired Boilers ($1.2/MBTU) Energy from Coal-Fired Boilers ($4.0/MBTU). (1)-(3) : Pareto Frontiers. Total Operating Cost (10 3 $Yr). (2). (1). (3).

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SOLUTION APPROACH – COMBINATORIAL PROCESS SYNTHESIS

Energy from External Sources ($9.0/MBTU)

Energy from Gas-Fired Boilers ($1.2/MBTU)

Energy from Coal-Fired Boilers ($4.0/MBTU)

(1)-(3) : Pareto Frontiers

Total Operating Cost (103 $Yr)

(2)

(1)

(3)

Global Warming Impact (Co2 Emissions, Ktons/Yr)

Total Operating Cost (103 $Yr)

(1)

(2)

(3)

Global Warming Impact (Co2 Emissions, Ktons/Yr)

QUANTIFICATION OF RISK UNDER UNCERTANTY

Multi-Objective Decision Making and Risk Management in Pharmaceutical Plants

Andres Malcolm, Aninda Chakraborty and Andreas A. Linninger

Laboratory for Product and Process Design, Department of Chemical Engineering, University of Illinois at Chicago

e-mail: [email protected]

CHALLENGES: PLANT WIDE WASTE MANAGEMENT

SUMMARY

CASE STUDY WASTE 5 TREE

MULTI-STAGE PHARMACEUTICAL PLANT

UNDERWOOD’S MODEL

17% Acetonitrile

83% Propanol

99% Propanol

1% Acetonitrile

P4_X29

P4_X76

(b)

94% Acetonitrile

1% Acetone

3% Propanol

W5

63% Acetonitrile

37% Acetone

(a)

P4_X1

P4_X13

99.9% Acetonitrile

63% Acetone

36%Acetonitrile

1%Propanol

P4_X10

TREATMENT DATABASE

P4_X8

99% Acetone

1% Acetonitrile

Detail P4_( X1 – X8)

P4_X5

SUPERSTRUCTURE GENERATION

Superstructure of waste 5. (OnR – Onsite Recycle; INC – Incineration; REU – Reuse; EVA – Evaporation; IonE – Ion Exchange; SCR – Scrubber; WAO - Wet Air Oxidation; BIO  - Biological Treatment; LEA - Leaching; LF – Landfill; ATM – Atmosphere; SEW – Sewer).

ENERGY SOURCE INFLUENCE

DESIGN UNDER UNCERTANTY

SUPERSTRUCTURE OPTIMIZATION

Trace Single policy in 3 Scenarios

Onsite Boiler reduces cost, increases Emissions

SUMMARY AND CONCLUSION

  • Deterministic design leads to flowsheets that are vulnerable to uncertainty.

  • Combinatorial Process Synthesis include the impact of waste load variations on waste management

  • Solution strategies to rigorously obtain

    • Minimum Risk Design

    • Stochastic Flexible Design

  • Exhaustive enumeration of design policies is prohibitly expensive for large # of wastes

    • Superstructure optimization is therefore necessary.

  • Superstructure Optimization - Modest execution time ( < 1 minute) to obtain mathematically sound guidelines for decision-makers.

TRADEOFF BETWEEN COST, ENVIRONMENTAL IMPACT AND RISK

CASE STUDY - TRADEOFF BETWEEN COST AND FLEXIBILITY


SOLUTION APPROACH – COMBINATORIAL PROCESS SYNTHESIS

Energy from External Sources ($9.0/MBTU)

Energy from Gas-Fired Boilers ($1.2/MBTU)

Energy from Coal-Fired Boilers ($4.0/MBTU)

(1)-(3) : Pareto Frontiers

QUANTIFICATION OF RISK UNDER UNCERTANTY

Multi-Objective Decision Making and Risk Management in Pharmaceutical Plants

Andres Malcolm, Aninda Chakraborty and Andreas A. Linninger

Laboratory for Product and Process Design, Department of Chemical Engineering, University of Illinois at Chicago

e-mail: [email protected]

CHALLENGES: PLANT WIDE WASTE MANAGEMENT

CASE STUDY WASTE 5 TREE

SUMMARY

MULTI-STAGE PHARMACEUTICAL PLANT

UNDERWOOD’S MODEL

17% Acetonitrile

83% Propanol

99% Propanol

1% Acetonitrile

P4_X29

P4_X76

(b)

94% Acetonitrile

1% Acetone

3% Propanol

W5

63% Acetonitrile

37% Acetone

(a)

P4_X1

P4_X13

99.9% Acetonitrile

63% Acetone

36%Acetonitrile

1%Propanol

P4_X10

P4_X8

TREATMENT MAP FOR DECISION MAKING

99% Acetone

1% Acetonitrile

Detail P4_( X1 – X8)

P4_X5

SUPERSTRUCTURE AND ITS PROPERTIES

Superstructure of waste 5. (OnR – Onsite Recycle; INC – Incineration; REU – Reuse; EVA – Evaporation; IonE – Ion Exchange; SCR – Scrubber; WAO - Wet Air Oxidation; BIO  - Biological Treatment; LEA - Leaching; LF – Landfill; ATM – Atmosphere; SEW – Sewer).

ENERGY SOURCE INFLUENCE

DESIGN UNDER UNCERTANTY

SUPERSTRUCTURE OPTIMIZATION

SUMMARY AND CONCLUSION

  • Deterministic design leads to flowsheets that are vulnerable to uncertainty.

  • Combinatorial Process Synthesis include the impact of waste load variations on waste management

  • Solution strategies to rigorously obtain

    • Minimum Risk Design

    • Stochastic Flexible Design

  • Exhaustive enumeration of design policies is prohibitly expensive for large # of wastes

    • Superstructure optimization is therefore necessary.

  • Superstructure Optimization - Modest execution time ( < 1 minute) to obtain mathematically sound guidelines for decision-makers.

TRADEOFF BETWEEN COST, ENVIRONMENTAL IMPACT AND RISK

CASE STUDY - TRADEOFF BETWEEN COST AND FLEXIBILITY


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