优秀毕业论文(设计)5万吨乙二醇生产工艺初步设计精品.doc

石河子大学毕业设计 题目： 5万吨/年乙二醇 生产工艺初步设计  1 5万吨/年乙二醇生产工艺初步设计 摘要 乙二醇是一种重要的石油化工基本有机原料，主要用于生产聚酯纤维、不饱和聚酯树脂、防冻 剂等。目前．国内乙二醇的工业生产方法是环氧乙烷直接水合法。 我国目前拥有大小不等的环氧乙烷/乙二醇（EO/EG）装置11套，但是相比于国外的同类装置， 这些装置的工艺落后，能耗和水耗都较高，因此研究EO/EG工艺优化以降低生产成本，具有非常现 实的意义。 本设计主要是针对乙二醇工艺的缺点，采用比较新的反应精馏工艺，利用化工模拟软件ASPEN PLUS对过程进行模拟优化，最后得到即可达到产品标准又可满足设计任务的结果。同时还对主要 设备进行了选型，绘制了PID工艺流程图。 关键词：环氧乙烷;乙二醇；反应精馏；ASPEN PLUS；EO/EG  2 50000 tons/year glycol production process preliminary design Abstract The glycol is an important basic organic raw materials of petrochemical, mainly for the production of polyester fiber, unsaturated polyester resins, antifreeze, etc.. The present. The methods of industrial production of the domestic ethylene glycol is ethylene oxide legitimate direct water. China currently has a size ranging from EO / EG set 11 sets, but compared to similar devices in the foreign and backward technology of these devices, energy and water consumption are higher, so the researchers EO / EG process optimization to reduce production costs. a very real sense. This design is for the shortcomings of the ethylene glycol process, using the new reactive distillation process, the use of chemical process simulation software ASPEN PLUS process simulation and optimization, and finally get to meet product standards and to meet the design task results. Of major equipment selection, draw the diagram of the PID process. Key words: ethylene oxide; glycol; reactive distillation; ASPEN PLUS; EO / EG  3 目录 第一章 文献综述 ................................................................................................................................... 5 1.1 简介 .............................................................................................................................................. 5 1.1.1 乙二醇物理性质 ............................................................................