乙醇精馏塔设计毕设论文.doc

123大学2013届本科毕业论文（设计）  PAGE \* MERGEFORMAT 39 河南理工大学2013届本科毕业论文 摘 要 乙醇是一种极重要的有机化工原料，也是一种燃料，在国民经济中占有十分重要的地位。随着乙醇工业的迅速成熟，各种制乙醇的方法相继产生。由于乙醇与水混合物的特殊性，即相对挥发度的不同且在一定浓度时生成共沸物，精馏操作一直是乙醇生产不可缺少的工序。 本设计的主要内容是根据20万吨乙醇生产工艺的需求，通过物料衡算和热量衡算以及板式浮阀塔设计的理论知识来设计浮阀塔，并由负荷性能图来进行校验。此外，本设计遵循经济、资源综合利用、环保的原则，严格控制工业三废的排放，充分利用废热，降低能耗，提高工艺的可行性。 关键词：乙醇精馏； 浮阀塔；塔附件设计 Abstract Ethanol is a very important organic chemical raw material, but also a fuel, in the national economy occupied a very important position. With the rapid ethanol industry matures, various methods have been found. As a characteristic of a mixture of ethanol and water, the difference of the relative volatility and is generated in a certain concentration azeotrope, distillation operation has been indispensable step of ethanol production. The design of the main content is based on 200,000 tons of ethanol production technology，which needs through material balance and energy balance and the plate valve column design theory to design the float valve column by load performance diagrams for verification. In addition, the design follows the economy, resource utilization, environmental protection principles, strictly control industrial waste emissions, the full use of waste heat, reduce energy consumption and improve the feasibility of the process. Keywords: Ethanol distillation， Valve column， Design 目 录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc358470596 摘 要  PAGEREF _Toc358470596 \h I  HYPERLINK \l _Toc358470597 Abstract  PAGEREF _Toc358470597 \h II  HYPERLINK \l _Toc358470598   HYPERLINK \l _Toc358470599 第一章 绪 论  PAGEREF _Toc358470599 \h 1  HYPERLINK \l _Toc358470600 1.1 设计的目的和意义  PAGEREF _Toc358470600 \h 1  HYPERLINK \l _Toc358470601 1.2 产品的性质及用途  PAGEREF _Toc358470601 \h 1  HYPERLINK \l _Toc358470602 1.2.1 物理性质  PAGEREF _Toc358470602 \h 1  HYPERLINK \l _Toc358470603 1.2.2 化学性质  PAGEREF _Toc358470603 \h 2  HYPERLINK \l _Toc358470604 1.2.3 乙醇的用途  PAGEREF _Toc358470604 \h 2  HYPERL