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As part of the development of the low-temperature phosphogypsum (PG) desulphurisation process, we will recover the thermal energy released dur ing the desulphurisation process to produce electricity using a heat recovery technology based on the Rankine Cycle (RC). The aim of this work is to study and simulate the energy production of our prototype power plant (combined desulphurisation reactor with RC). By studying the various parameters of each block and also the heat flow of the Rankine cycle process, the output power of the RC system using the Aspen Plus simulation programme is determined. In order to maximise the output power with the minimum energy consumption, each block of the Rankine cycle system is optimised. The results revealed that water offers the best performance in the order of the output power of the RC system is 280 KW with a very good efficiency of 11.02%. Besides, the energy in the heating and cooling block of the RC power plant was minimised by 1.92% and 2.73% respectively, using the Aspen Plus optimisation model Aspen Energy Analyser (AEA).

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Recovery of Thermal Energy from Phosphogypsum (PG) Desulfurization by the Rankine Cycle (RC)

  • 会议论文

  • 发表日期：

    2025年

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  • Majdouline Alla,
  • Kamal Amghar,
  • Ilham Lahlal,
  • Hind Talbi,
  • Yassine Rharrabi,
  • Omar Ghoulam

摘要

As part of the development of the low-temperature phosphogypsum (PG) desulphurisation process, we will recover the thermal energy released dur ing the desulphurisation process to produce electricity using a heat recovery technology based on the Rankine Cycle (RC). The aim of this work is to study and simulate the energy production of our prototype power plant (combined desulphurisation reactor with RC). By studying the various parameters of each block and also the heat flow of the Rankine cycle process, the output power of the RC system using the Aspen Plus simulation programme is determined. In order to maximise the output power with the minimum energy consumption, each block of the Rankine cycle system is optimised. The results revealed that water offers the best performance in the order of the output power of the RC system is 280 KW with a very good efficiency of 11.02%. Besides, the energy in the heating and cooling block of the RC power plant was minimised by 1.92% and 2.73% respectively, using the Aspen Plus optimisation model Aspen Energy Analyser (AEA).