Abstract:

In this paper, the UOP process for phenol-acetone production by isopropyl benzene oxidation was simulated using Aspen Plus. Based on the simulation results, a pinch analysis of the distillation tower involved in the process was carried out, and a heat integration scheme was proposed. Subsequently, the feasibility of heat integration between the tower system and the background process was analyzed, and the possibility of matching the heat exchange between the tower system and the background process was pointed out, which provided a basis for the extraction of logistics data in the design of heat exchanger network. Finally, the theoretical maximum heat exchange recovery network was obtained based on the pinch design principle. Compared with the initial process, in the final energy-saving plan, cold utilities reduced from 96.69 MW to 70.98 MW, saving energy by 26.59%, and heat utilities reduced from 55.41 MW to 29.71 MW, saving energy by 46.38%. Good energy-saving results were achieved.

Key words:

process for production of phenol and acetone from cumene')">"> process for production of phenol and acetone from cumene, energy-saving reconstruction, design of heat exchanger network, pinch technology