年产12万吨甲醛工业设计分解.doc

目 录 目 录 i 摘要： I Abstract: II 第一章 概论 1 1.1 甲醛的性质 1 1.2 甲醛的用途 3 1.3 我国甲醛工业的现状 4 1.4 我国甲醛工业的发展趋势 5 第二章 工艺流程介绍 6 2.1 甲醇氧化制甲醛反应原理 6 2.2 工艺流程 6 2.2.2.1反应器的结构与状态 8 2.2.2.2催化剂的性能和状态 8 2.2.2.3反应温度 8 2.2.2.4氧醇比 8 2.2.2.5水醇比 9 2.2.2.6停留时间和空间速度 9 2.2.2.7反应压力 9 2.2.2.8原料混合气的纯度将影响催化剂的活性与寿命 9 第三章 工艺计算 10 3.1 物料衡算 10 3.2 热量衡算 23 第四章 主要非定型设备的计算及选型 34 4.1蒸发器 34 4.2过热器 35 4.3 氧化器 36 4.4 吸收一塔 38 4.5 吸收二塔 42 4.6 主要非定型设备一览表 46 4.7 主要定型设备选型 46 第五章 主要工艺管道计算及选型 48 5.1 主要工艺管道计算及选型 48 5.2 主要工艺管道汇总表 52 第六章 安全措施与“三废”处理 53 6.1 物料特性及安全防范措施 53 6.2“三废”处理 54 第七章 甲醛市场分析与经济估算 56 7.1 产品甲醛及原料甲醇市场价格分析 56 7.2 经济效益估算 57 第八章 总结与展望 59 8.1 总结 59 8.2 展望 59 致 谢 60 参考文献： 61  年产12万吨甲醛生产工艺设计 学生：指导老师：系 The manufacturing process of Formaldehyde 120000 tons per year Student: Wu Fang (Faculty Adviser：Zhou Jing Jing) (Chemical Engineering and Technology, Huainan Normal University) Abstract: This design is the primary design for the annual output of 120000 tons of 37 % (wt) aqueous formaldehyde production. And the designed diagrams include: the pipeline of the device and process flow sheet with controlled point, the assemblage chart of the oxidizer, the plane figure of the device and the bluepoints of the factory.The formaldehyde is produces by sliver catalysis method in this design. According to the design mainly requirements of technological process, calculation, selection and demonstration were conducted. The design mainly consists of three parts: material balance, heat balance calculation and equipment calculation. The design and selection of the main equipment and pipeline were carried out on the basis of the material balance calculation and the heat balance calculation. At the same time, the safely producing plan and the plan to deal with the “three waste” were argued, at last the preliminary analysis and evaluation of the market prospect and economic benefits of the market had also been carried out. Keywords: Formaldehyde; Methanol; Oxidation; Technology；Electrolysis Silver第一章