ABSTRACT: Carbon dioxide (CO2) emission reduction ...

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ABSTRACT:
Carbon dioxide (CO2) emission reduction targeting is an important move in atmospheric CO2
concentration control. Idea of applying HEN retrofit and fuel switching in existing plant has been
proposed to be applied simultaneously in achieving CO2 emissions reduction. Graphical approach
combining the mentioned idea has been proposed, but involves potentially time consuming manual
procedures. Besides, quality of solution produced greatly depends on designer's experience and
judgment, and graphical approach hardly account for the cost factor during the design phase, thus
potentially generate complex design. This paper introduces a MINLP model for simultaneous CO2
emissions reduction targeting via fuel switching and HEN retrofit for existing plant. A model execution
strategy was proposed along with proposed model. Application of proposed model onto case study
proven workability of the model to generates solution for targeted CO2 emissions reduction in minimum
payback period manner.
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