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Heat Integration Analysis Based on Pinch Technology in the Pre-Design Stage of an Ethyl Acetate Production Process

1Department of Industrial Chemical Engineering Technology, Diponegoro , Indonesia

2University, Indonesia, Indonesia

Received: 29 Dec 2025; Published: 31 Dec 2025.
Open Access Copyright (c) 2025 by Authors, Published by Vocational College of Universitas Diponegoro
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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Abstract

Industrial heat exchanger networks often exhibit suboptimal energy utilization due to limited heat integration between process streams. This study aims to optimize a heat exchanger network through the application of pinch analysis based on the initial process flowsheet. Hot and cold stream data, including inlet temperature, outlet temperature, and heat load, were first analyzed using Microsoft Excel and subsequently processed using the Heat Integration Network Tool (HINT). Pinch analysis was conducted by constructing composite curves to identify the pinch point, which represents the thermodynamic constraint of the system. Based on the analysis results, a redesigned heat exchanger network was developed in accordance with pinch principles, namely the elimination of heat transfer across the pinch and the enhancement of internal heat recovery. The results demonstrate that the application of pinch analysis leads to a more efficient heat exchanger network configuration and reduces the reliance on external heating and cooling utilities compared to the initial system.

Keywords: pinch analysis; heat integration; heat exchanger network; composite curve; energy efficiency

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Keywords: pinch analysis; heat integration; heat exchanger network; composite curve; energy efficiency

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