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Design of a fully thermally coupled distillation column for hexane process using a semi-rigorous model

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Abstract

An industrial scale hexane process is designed for the implementation of a fully thermally coupled distillation column (FTCDC). A semi-rigorous material balance and Peng-Robinson equilibrium relation are utilized in the structural design. The operational design is conducted with a commercial design program, the HYSYS. The design outcome of the structural design indicates it to be comparable with the practical system of a conventional two-column arrangement in field operation, which shows the effectiveness of the design procedure implemented here. The procedure is good for the system of many components found from actual field applications. In addition, an investigation of the energy requirement of the FTCDC and a conventional system shows that an energy saving of 34.1% is available with the FTCDC.

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Authors and Affiliations

  1. Dept. of Chemical Engineering, Dong-A University, 604-714, Busan, Korea

    Young Han Kim

  2. Dept. of Chemical Engineering, Pusan National University, 609-735, Busan, Korea

    Kyu Suk Hwang

  3. Energy-Efficient Chemical Systems Group, National Institute of Advanced Industrial Science and Technology, 305-8565, Tsukuba, Japan

    Masaru Nakaiwa

Authors
  1. Young Han Kim
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  2. Kyu Suk Hwang
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  3. Masaru Nakaiwa
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Corresponding author

Correspondence to Young Han Kim.

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Kim, Y.H., Hwang, K.S. & Nakaiwa, M. Design of a fully thermally coupled distillation column for hexane process using a semi-rigorous model. Korean J. Chem. Eng. 21, 1098–1102 (2004). https://doi.org/10.1007/BF02719480

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  • DOI: https://doi.org/10.1007/BF02719480

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