Abstract: As a typical high-energy consumption unit, the aromatic hydrocarbon complex has a large energy-saving space. To further improve the economic benefits of the unit and reduce its operating costs, an analysis was conducted on the energy consumption composition of a company's aromatics complex to determine the main sources of energy consumption for the aromatics unit. Through energy analysis of the unit, the main direction of energy-saving efforts is to increase the production of aromatic hydrocarbon products and control the consumption of fuel, steam, and electricity. Based on the actual production and operation situation, the energy-saving and consumption reducing methods for aromatic hydrocarbon complex units were explored. By increasing the production capacity of the unit, adjusting the product structure, improving the thermal efficiency of the heating furnace, and applying low-temperature waste heat recovery technology, the production efficiency of the unit can be effectively improved, the production cost of the unit can be reduced, and the goal of reducing costs and increasing efficiency of aromatic hydrocarbon complex units can be achieved.

Key words: aromatic hydrocarbon complex, energy consumption, low temperature heat, reduce cost and increase efficiency