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<p>Evaluating the environmental efficiency of companies is relevant to promoting corporate responsibility and encouraging sustainable practices aimed at preserving ecosystems. The aim of this study is to longitudinally evaluate the environmental efficiency of three polyethylene production plants of a petrochemical company over a 5-year period. In addition, we evaluated the effects of using different types of production technology in the production process. We used the directional distance function (DDF) to calculate environmental efficiency and applied the non-parametric Mann–Whitney <i>U</i> test to statistically assess differences between production technologies. The median efficiency of the three production plants is 51.30%, 35.40%, and 50.20%, respectively. In addition, the Slurry production technology was found to have a greater environmental impact on the polyethylene production process. The research offers valuable insights for managers by helping them evaluate the results of production plants. Finally, the study provides a solid basis for decisions aimed at continuous improvement and the definition of production technology based on efficiency analysis. The findings have implications for production managers, process engineers, and sustainability teams, as they can use the results to identify inefficiencies, optimize resource consumption, and prioritize cleaner technologies. Policy makers and regulators may also benefit from these insights to guide industry-wide initiatives for environmental compliance and innovation, ultimately contributing to more sustainable and competitive petrochemical production systems.</p>

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Environmental Efficiency and Production Technology in the Petrochemical Industry Based on Directional Distance Function

  • 期刊论文

  • 发表日期：

    2025年10月4日

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  • Katia Maete Rodrigues da Silva,
  • Karen Thais Alves,
  • Marilia Botelho Coelho,
  • Rodrigo Frank de Souza Gomes,
  • Fabio Antonio Sartori Piran

摘要

Evaluating the environmental efficiency of companies is relevant to promoting corporate responsibility and encouraging sustainable practices aimed at preserving ecosystems. The aim of this study is to longitudinally evaluate the environmental efficiency of three polyethylene production plants of a petrochemical company over a 5-year period. In addition, we evaluated the effects of using different types of production technology in the production process. We used the directional distance function (DDF) to calculate environmental efficiency and applied the non-parametric Mann–Whitney U test to statistically assess differences between production technologies. The median efficiency of the three production plants is 51.30%, 35.40%, and 50.20%, respectively. In addition, the Slurry production technology was found to have a greater environmental impact on the polyethylene production process. The research offers valuable insights for managers by helping them evaluate the results of production plants. Finally, the study provides a solid basis for decisions aimed at continuous improvement and the definition of production technology based on efficiency analysis. The findings have implications for production managers, process engineers, and sustainability teams, as they can use the results to identify inefficiencies, optimize resource consumption, and prioritize cleaner technologies. Policy makers and regulators may also benefit from these insights to guide industry-wide initiatives for environmental compliance and innovation, ultimately contributing to more sustainable and competitive petrochemical production systems.