Aspen年产30万吨乙二醇精制工段设计+CAD图纸+物料衡算表

摘要：本项目应用了全新的工艺路线，用纤维素制取乙二醇，此路线清洁新颖，有且仅有小试的完成。此生产路线可分为原料预处理车间、乙二醇生产车间和混乙二醇分离车间。此论文将主要讨论乙二醇的精制工段，即将反应工段得到的醇类混合物中的山梨醇及1,2-丙二醇除去，用闪蒸塔将沸点低的山梨醇除去，而后经过共沸塔共沸精馏后除去1,2-丙二醇制得高纯度的乙二醇产品。文中将涉及共沸塔、闪蒸塔的设计优化，数据核算；Aspen plus的软件模拟；塔效益的核算；共沸剂的选择等相关内容。42562

毕业论文关键词：纤维素；乙二醇；共沸精馏

The Purified Ethylene Glycol Section for 300000 tons/year of Biomass

Abstract：This project apply the new process route which is direct catalytic conversion of cellulose into ethylene glycol. This new clean route was only applied on small test over the world. This production route can be pided into raw material pretreatment plant, ethylene glycol production plant and glycol mixture’s separation plant. This paper will mainly discuss the ethylene glycol purification section, and remove the impurity substance of sorbitol and 1,2-propylene glycol which is the production of the reaction plant. After these azeotropic process, the high purity ethylene glycol products can be gained. This project will involve the design and accounting data of azeotropic tower and the flash column tower, the simulation process of the calculation software Aspen Plus, the selection of azeotrope and some relevant content.

Key Word: Cellulose; Ethylene Glycol; Azeotropic Distillation

1 前言 1

1.1 项目综述 1

1.2 项目背景与意义 1

1.2.1 项目背景 1

1.2.2 乙二醇市场评估及预测 2

1.3 乙二醇工艺路线的选择 2

1.3.1 石油乙烯路线 3

1.3.1.1 环氧乙烷水合路线 4

1.3.1.2 碳酸乙烯酯路线 4

1.3.2 合成气制乙二醇路线 5

1.3.3 生物质转化路线 5

2 生物质制乙二醇工艺流程简述 7

2.1 乙二醇生产原料及辅助材料 7

2.1.1 原料（秸秆） 7

2.1.2 辅助材料 8

2.2 精制流程组合工艺塔器简介 9

2.2.1 闪蒸罐 9

2.2.2 共沸精馏塔 10

2.3 工艺流程简述 11

3 乙二醇精制流程 13

3.1 乙二醇精制流程步骤简述 13

3.2 闪蒸塔 13

3.2.1 闪蒸塔分离原理详述 13

3.2.2 闪蒸塔设备参数计算 13

3.2.2.1 工艺设计条件表 13

3.2.2.2 工艺设计条件表 14

3.2.2.3 筒体厚度及水压测试 15

3.2.3 闪蒸塔Aspen Plus 流程模拟 Aspen年产30万吨乙二醇精制工段设计+CAD图纸+物料衡算表:http://www.youerw.com/huaxue/lunwen_42908.html