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Enhanced Process Design: Heat Exchanger Integration and Benzene Recovery Optimization

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This report presents our alternative design in process economics, featuring a newly installed heat exchanger that utilizes reactor inlet and outlet streams, significantly improving our cash flows by millions annually. We treated the purge stream in a high-pressure flash tank aimed at benzene recovery, necessitating a few auxiliary process units for temperature and pressure adjustments to achieve optimal separation. The new material flow indicates a total yearly profit of $16.62 million, while energy flow reflects operating costs of $920,900 annually.

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Enhanced Process Design: Heat Exchanger Integration and Benzene Recovery Optimization

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  1. ChEn 4501 Process Design HDA processAlternative Design Economics Report Section 5 – Group 7 – Yellow Customer Name(Economist) Customer Name(Engineer) Customer Name(Coordinator) Teacher Name

  2. Our Alternative Design PFD

  3. What’s New? We installed a heat exchanger using the reactor inlet and outlet as the cold and hot streams. This added millions to our yearly cash flows. For our alternative design, the purge stream was treated in a high pressure flash tank with the goal of benzene recovery. A few auxiliary process units were required to bring the purge stream to the temperature and pressure required for an acceptable separation.

  4. New Material Flows Total yearly profit from materials bought, sold and purged: $16.62 M/yr

  5. New Energy Flows Total yearly operating costs from utilities $920,900/yr

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