A novel design for vapor recovery units

作者：Lu EX^*; Zhang HJ; Zhu XL

来源：Computers & Chemical Engineering, 2000, 24(2-7): 1317-1322.

DOI：10.1016/S0098-1354(00)00399-9

• FCCU
• vapor recovery unit
• novel design
• simulation
• optimization

This paper describes a novel design for vapor recovery units (VRU). This design, compared to the widely used prevailing process - 'double column' process, can obtain the total profit increase of 1 326 160 USD per year with the same feed and product specifications based on the FCCU capacity of 1 200 000 tons/yr. The net profit increase caused by the utility savings and the product recovery rate enhancements are 478 080 and 848 080 USD year, respectively. It has the following features: the two recycle streams in the existing VRU are eliminated; a complex distillation column - the oil absorption deethanizer is used to replace the original absorber and stripper; the heat exchanger network is rearranged and optimized; the configuration of the novel VRU is quite simple compared with the existing VRU; the capital cost for the novel design is lower than that for the existing VRU.

• 出版日期2000-7-15
• 单位华南理工大学