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Abstract <p>In view of rising energy prices, energy-saving measures are becoming relevant even for small-scale plants that use relatively inexpensive energy resources (steam, water). Using computer simulation of three designs of energy-saving distillation systems for tetrachloroethylene (simple sequential separation, use of a heat pump, and mechanical steam recompression), the efficiency of heat-integration methods for small-scale production is demonstrated, and the option with the lowest total annual costs is selected. As a result of the study, it is concluded that for existing plants not optimized for energy consumption, using mechanical steam recompression from one column to heat the reboiler of another column can reduce total annual costs by 8.6%, with a payback period for the upgrade of 3.5 years. Operating expenses are reduced by 29.5% in monetary terms. For newly established plants, simultaneously optimizing the distillation-stage equipment for energy consumption and applying heat-integration methods in the form of mechanical steam recompression can reduce total annual costs by more than 23% compared with the base case.</p>

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Simulation and Optimization of Small-Scale Tetrachloroethylene Production

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • O. V. Pererva,
  • A. V. Pankrushina,
  • T. N. Gartman,
  • V. E. Zyakin,
  • F. S. Sovetin

摘要

Abstract

In view of rising energy prices, energy-saving measures are becoming relevant even for small-scale plants that use relatively inexpensive energy resources (steam, water). Using computer simulation of three designs of energy-saving distillation systems for tetrachloroethylene (simple sequential separation, use of a heat pump, and mechanical steam recompression), the efficiency of heat-integration methods for small-scale production is demonstrated, and the option with the lowest total annual costs is selected. As a result of the study, it is concluded that for existing plants not optimized for energy consumption, using mechanical steam recompression from one column to heat the reboiler of another column can reduce total annual costs by 8.6%, with a payback period for the upgrade of 3.5 years. Operating expenses are reduced by 29.5% in monetary terms. For newly established plants, simultaneously optimizing the distillation-stage equipment for energy consumption and applying heat-integration methods in the form of mechanical steam recompression can reduce total annual costs by more than 23% compared with the base case.