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(a) Techno-economic analysis, (b) equipment costs breakdown analysis, (c) utility costs breakdown analysis, and (d) revenue versus price variation of CHDM of S1 and S2. High-pressure steam is used in distillation column 1 for the evaporation of water, and a fired heater is used in columns 2 and 3 for the recovery of ethylene glycol and CHDM. CHDM: 1,4-cyclohexanedimethanol.
