A brief description is given of the development and application of large energy?saving ammonia converters by ICI, Uhde, Braun and Ammonia Casale, and the growth trend of these converters is discussed. ?

• 扼要介绍ICI、伍德、布朗和卡萨利等公司的大型节能氨合成塔的开发与应用，并探讨大型节能氨合成塔的发展趋势。