低温精馏法空气分离的能耗分析与节能设想  

Energy Consumption Analysis and Energy-saving Assumption of Air Separation Process With Cryogenic Distillation Method

作　　者：衣爽[1] 

机构地区：[1]营口职业技术学院,辽宁营口115000

出　　处：《辽宁化工》2015年第6期651-653,共3页Liaoning Chemical Industry

摘　　要：分析了低温精馏法进行空气分离制取氧气和氮气的能耗问题,并提出了在实际操作中应如何节能。通过分析得出空气分离过程中有近75%的能耗损失在精馏的过程中,而精馏过程中的能量损失主要是由于热力学不可逆性造成的,同时总结了存在能量损失的其它方面。对于如何节能的问题提出了自己的一些建议和设想。Energy consumption problem of separating oxygen and nitrogen from air with cryogenic distillation method was analyzed, and how to save energy in practice was discussed. The results show that 75% of the energy consumption is in the process of distillation, which is due to the thermodynamic irreversibility. At last, other aspects of energy loss were summarized, and some proposals on how to save energy were put forward.

关 键 词：空气分离 精馏 能耗 节能 

分 类 号：TQ028[化学工程]