Abstract
Pinch technology is the most effective approach to determine efficient and significant energy uses. However, the application of pinch technology to analyze heat consumption in the polystyrene synthesis process from styrene monomer is quite restricted. This work aimed to optimize the manufacture of Polystyrene from styrene monomer by determining the optimal ΔTmin value. ΔTmin was varied by 10, 20, and 30K. By using the matching stream method on HINT software, the effect of ΔTmin on heating duty, cooling duty, and maximum energy recovery (MER) is also being explored. According to the result of this research, the optimum ΔTmin for polystyrene production is 10 K with heating duty, cooling duty, and maximum energy recovery (MER) values of 720,241 kW, 1,197.6 kW, and 2,368,473 kW, respectively, while the operating expenses are included. and capital expenses at ΔTmin 10K are 95,892 $/year and 89,281.6 $/year respectively. In consequence, depending on energy consumption and MER, it is strongly advised to choose the smallest ΔTmin feasible to achieve the required energy. The stream matching approach is also used to lower heat exchanger loads and expenses, allowing the process to run more economically and efficiently.
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