The equipment plane arrangement of fluid catalytic dehydrogenation unit need to meet the relevant specifications such as the fire prevention code of petrochemical enterprise design, and also involves the stable operation, the equipment selection, the investment and the energy consumption etc. This paper discussed the impact of different equipment plane arrangement for the equipment selection, the operation, and the energy consumption.%流化催化脱氢装置的设备平面布置方案除了要满足相关规范（如防火规范）以外，还涉及到装置的稳定运行、设备选型、投资及能耗等问题。着重讨论了流化催化脱氢装置的不同布置方案对设备选型、装置投资、装置运行及能耗的影响。
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