Economic Evaluation of Heat-Pump-Assisted Distillation Systems

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  • Suzuki Kenta
    Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University
  • Takane Kei
    Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University
  • Yamaki Takehiro
    Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Center 5
  • Wakabayashi Toshihiro
    Process Engineering Division, Toyo Engineering Corporation
  • Alcantara Avila J. Rafael
    Department of Applied Chemistry, Graduate School of Science and Technology, Tokushima University
  • Matsumoto Hideyuki
    Renewable Energy Center, National Institute of Advanced Industrial Science and Technology (AIST)
  • Horie Takafumi
    Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University
  • Nakaiwa Masaru
    Renewable Energy Center, National Institute of Advanced Industrial Science and Technology (AIST)
  • Matsuda Keigo
    Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University Renewable Energy Center, National Institute of Advanced Industrial Science and Technology (AIST)

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Other Title
  • ヒートポンプ技術を適用した蒸留システムのコスト評価
  • ヒートポンプ ギジュツ オ テキヨウ シタ ジョウリュウ システム ノ コスト ヒョウカ

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Abstract

<p>Heat-pump-assisted distillation columns such as the vapor recompression column (VRC), self-heat recuperation column (SHRC), and heat integration column (HIDiC) have attracted attention in industry because of their strong impact on energy savings in chemical processes. Compared to conventional distillation columns, these systems have the advantage of reducing operation and construction costs, but little work has been done to evaluate the cost of these systems. This study employed the commercial process simulator Aspen Plus® to evaluate energy saving and economic performances. The heat-pump-assisted distillation distillation systems were economically superior to the conventional process for separation of a propylene-propane mixture. In particular, a thermally optimized HIDiC reduced energy consumption and total annual cost by 64 and 56% respectively in comparison with the conventional distillation process.</p>

Journal

  • KAGAKU KOGAKU RONBUNSHU

    KAGAKU KOGAKU RONBUNSHU 44 (5), 303-307, 2018-09-20

    The Society of Chemical Engineers, Japan

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