关键词: 乙醇胺, 热敏性, 模拟, 集成, 分离

Abstract: The ammonia content has a significant effect on consumption of energy in production of ethanolamine (EA). Heat integration is needed to reduce energy consumption in the process of ammonia and water removal. At the same time，operating temperature limitation should be considered because EA is a heat sensitive material. This paper studied variation of color numbers of the EA mixtures with or without water with the changing temperature and residence time. It was determined that 160 ℃ was the upper limit of operating temperature limitation in the process of ammonia and water removal. For different ammonia contents，the non-integrated energy consumptions and column operating conditions of process were compared. The results showed the temperature of de-ammonia column was 160.2 ℃ slightly over the temperature limitation. Therefore，the operation of ammonia removal would need to be adjusted. Three types of heat integration schemes were studied under different ammonia contents. The results showed that，the integration solutions of ammonia and water removal were different for different ammonia contents due to the operating temperature limitation.

Key words: ethanolamine, heat sensitivity, simulation, integration, separation