论文写作与指导姓名: 学号: 专业班级 : 指导老师 : 合成氨合成工艺的现状The present status of synthetic ammonia process Wang 西北民族大学化工学院,甘肃兰州 730124 Northwest university for nationalities institute of chemical, lanzhou, gansu ,730124 摘要:合成氨是重要的化工原料 , 在国民经济中占有重要地位, 本文在文献调研的基础上综述了合成氨设备、 催化剂、合成氨工艺三方面的现状和未来发展趋势。在设备方面,通过对冷管型合成塔和绝热型合成塔新技术的综述和两种设备的对比,阐述了国内外合成氨设备的不同之处,及国内外合成氨设备的优劣,提出了国内合成氨设备的发展建议。合成氨工艺方面,通过转化、变换、脱碳、合成四方面综合阐述了目前合成氨工艺技术的现状和发展趋势,介绍了近年来国内外合成氨工艺的新技术和工艺流程方面的新进展。关键词 :合成氨;新工艺;合成塔Abstract:Ammonia is one of the most important chemical production,It has an important station in national economy. This article has summarized the ammonia synthesis by ammonia equipment, catalyze, and technology to describe the actuality and the future which based the literature disquisition. For the equipment through the difference of the cold tube compose tower and insulate compose tower, we can know which is better and it can also give some advice of the development for our country equipment.For the technology, through the transform, commutation, decarburization and compose which tell the technology at present and development in future .introduce the new technology and the new development in technology flow. Key words: ammonia synthesis; new technology; catalyst; reactor 1 、合成氨的历史过去制氢是在水煤气发生炉中加水蒸汽使其焦炭气化,氮则以空气形式通入,使氢氮维持正确比例。 在本法中吹入蒸汽通过灼热焦炭层生成氢。当焦炭因吸热反应被充分冷却时, 即停止通蒸汽而改通空气。 通空气燃烧将焦炭层温度升高到下一次水煤气循环所需要的温度。水煤气的净化过程是采用变换, 水洗和铜洗微量。直到二次大战末,...