Exergy-economic analysis and optimisation of sulphuric acid production from sulphur based on Aspen simulation
by Li Li; Hongchen Mu; Feng Wang; Minmin Ma; Yuncheng Shen; Shenghui Gao; Yafei Tian; Ye Huang; Le Wu
International Journal of Exergy (IJEX), Vol. 44, No. 2, 2024

Abstract: Energy recovery is important for sulphuric acid productions due to high exothermal effects of oxidation reactions and acid adsorption. Aspen Plus and exergy analysis of a sulphuric acid process was carried out based on actual operating data to reduce the energy consumption and enhance the exergy performance. After optimisation, the exergy loss was decreased from 15,139.73 kW to 8,917.86 kW by adding two pumps and one heat exchanger. The economic analysis showed that the steam revenue was also raised with 18.34% growth. The exergy performance and the product revenue were optimised by the proposed Aspen simulation and exergy analysis.

Online publication date: Wed, 26-Jun-2024

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