Research On Energy Saving Reform Of BDO Distillation Workshop

This project is a distillation plant at Northwestern University in analog design an annual 80,000 tons of 1,4-butanediol (referred BDO) project for energy-saving design.In this paper, the original analog design distillation plant 80,000 tons BDO project conducted energy analysis and process analysis, identify problems by analyzing analog design energy efficiency projects. For problems, proposed solutions and energy-saving technology equipment energy-saving measures, by pinch technology for the separation of the energy integration workshop. By CHEMCAD software simulation to calculate the energy consumption of energy-saving programs around the calculated energy savings renovation design.First, the original analog design projects 80,000 tons BDO plant distillation process were analyzed, and the distillation plant in the thermodynamic efficiency of the calculation of heat transfer equipment. Combining technology and equipment analysis, thermodynamic analysis of the reasons for the effect of heat transfer equipment is not high, the proposed energy-saving technology solutions.After distillation of the original plant design simulation process transformation and integrity design, the use of distillation plant CHEMCAD software for process simulation. Using pinch technology for distillation plant heat exchanger network were calculated and analyzed, the recovery process from the perspective of the protection and rational energy running starting to establish an initial heat integrated network. According to the principle of optimization equipment costs and operating expenses, the initial heat integrated network amendment proposed measures to optimize heat transfer equipment and improvement program, completed the heat integrated network.Meanwhile distillation workshop conducted for each heat exchanger equipment design calculations and equipment costing introduced energy saving air-cooled heat exchangers. On this basis, the energy integrated distillation plant for improved simulation, design and renovation program before comparing the effective heat transfer equipment for energy analysis and calculation. Heat transfer equipment design and transformation before comparing the design after the transformation of the energy consumption significantly reduced heat transfer equipment, and significantly increased the effective utilization of the device.Due to the use of air-cooled, making environmental aspects of the entire design project has been strengthened.