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年产20万吨烃类蒸汽转化法合成氨工艺设计.doc

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年产20万吨烃类蒸汽转化法合成氨工艺设计

年产20万吨烃类蒸汽转化法合成氨工艺设计职业技术学院毕业设计（论文） (冶金化工系) 题目年产20万吨烃类蒸汽转化法合成专业班级姓名学号指导教师完成日期目录目录································································································································· I 摘要································································································································ 1 第一章概述················································································································ 2 1.1 合成氨在国民经济中的重要地位···································································2 1.2 氨的物化性质···································································································2 1.3 合成氨的主要原料来源及其规格···································································3 1.3.1主要原料来源·························································································3 1.3.2主要原料规格·························································································3 1.4 我国合成氨的发展状况···················································································4 第二章合成氨的生产特点及工艺流程···································································· 6 2.1合成氨的生产特点····························································································6 2.2 合成氨的工艺流程···························································································6 2.2.1原料气的制备·························································································6 2.2.2 原料气的净化························································································8 第三章合成氨的生产流程及设备·············································································· 11 3.1合成氨的生产流程简介·················································································· 11 3.2合成氨的主要设备··························································································12 3.2.1合成氨塔···········································································