北京化工大学北方学院应用化学专业毕业设计（论文）.docx

年处理1089009吨甲醇—水溶液连续精馏塔设计
摘要
精馏是利用液体混合物中各组分挥发性的差异通过多次部分汽化、部分冷凝实现液体混合物的分离并混得高纯的产品的化工单元操作,是物质在两相间的转移过程。本设计的主要内容是年处理108009吨甲醇产品的连续精馏塔,以浮阀塔为精馏设备分离甲醇和水,塔顶采用的是全凝器,进料方式是泡点进料,工艺设计流程,塔内部设计方案。产出液相分率为97%,通过进行物料衡算与能量衡算,计算出塔中各部位的物料比重,进行一些设备计算时及时对所计算出的数据进行校核,检验计算出的数据是否符合要求,不符合及时修正。根据自己的计算数据,选择符合要求的附属设备。最终设计出合格的塔设备完成生产需要。
关键词:甲醇连续精馏塔工艺设计塔内部设计
Annual processing 1,089,009 tons of methanol
——aqueous continuous distillation column design
Abstract
  The distillation is the use of volatile difference of ponent in the liquid mixture was by multiple partially evaporated, partially condensed to achieve separation of a liquid mixture and fared high purity products of the chemical unit operation, material transfer process in two phases. The design of processing 108,009 tons of methanol continuous distillation, separation of methanol and water valve tower distillation equipment, the top of the tower is full condenser feeding method is the bubble point feed, process design process, the tower design. Output liquid phase fraction of 97%, count by material balance and energy balance to calculate the proportion of various parts of the material in the tower, some equipment the calculation of the calculated data in a timely manner verification, testing calculated data meets the requirements, do not meet the timely correction. According to their calculations, to meet the requirements of the ancillary equipment. The final design of the tower of qualified equipment plete production needs.
Key words: methanol continuous distillation column process design
tower interior design
目录
前言 1
第1章设计方案的确定 2
第2章浮阀塔的工艺计算 4
4
8
11
12
13
第3章浮阀塔塔径及塔板结构的计算 17
17
20
21
23
25
30
结论 32
附录 36
参考文献 41
致谢 43
前言
精馏设备是化学工业、石油工业、石油化工等生产中最重要的设备之一。利用液体混合物中各组分发挥性的差异将其分离的化工单元操作就叫做蒸馏,如果进行多次部分汽化和部分冷凝,最终得到较纯的两组分,这个过程就称为精馏[1]。
精馏技术广泛应用于各类精细化学品的生产