60万/吨年MTO烯烃分离工段工艺设计论文+cad图纸+开题报告+答辩PPT+文献综述

我国能源结构特点是“富煤、缺油、少气”，预计这一状况在今后相当长的时期内不会改变。原料结构多元化已经成为我国石化行业发展的必然选择，基于我国石油能源相对匮乏的现实，积极发展燃油替代产业是国家能源安全的要求。目前中国煤气化技术和合成气制甲醇技术的应用都已经比较成熟，而甲醇制烯烃技术经过多年的发展在理论上和实验装置上也已经比较完善。

本项目依据此思路设计一套60万吨/年MTO烯烃分离工段工艺设计。该设计思路使用DMTO技术，以来自公司的煤制甲醇工段的合成甲醇为主要原料，经过反应阶段――气体净化阶段――气体分离阶段的过程来得到质量分数99.9%的乙烯质量分数99.7%的丙烯。

关键词：MTO；工艺设计；烯烃分离；煤气化

The energy structure of our country is characterized by "rich coal, lack of oil and less gas." it is expected that this situation will not change for a long time to come. The diversification of raw material structure has become an inevitable choice for the development of petrochemical industry in China. In view of the fact that petroleum energy is relatively scarce in China, it is the requirement of national energy security to actively develop fuel substitution industry. At present, the application of coal gasification technology and methanol production technology from syngas in China has been relatively mature. And methanol olefin production technology has been developed for many years in theory and experimental equipment has been relatively perfect.

According to this idea, this project designed a set of 600000 t / a MTO olefin separation section process design. The design idea uses DMTO technology, taking methanol synthesis from coal to methanol section as the main raw material. The ethylene content of 99.9% and propylene content of 99.7% were obtained through the process of reaction stage -gas purification stage -gas separation stage.

Keywords:MTO; process design; olefin separation; coal gasification

摘要I

AbstractII

第1章绪论1

1.1发展煤制烯烃的背景和意义1

1.2国内外甲醇制烯烃的工艺技术进展1

1.2.1烯烃的制取方法1

1.2.2国内外甲醇制烯烃工艺进展2

第2章工艺流程设计4

2.1工艺流程简图4

2.2工艺路线的分析与确定4

2.2.1气体产生系统4

2.2.2气体净化系统5

2.2.3气体分离系统7

第3章工艺计算10

3.1物料衡算10

3.1.1物料衡算的意义10

3.1.2物料衡算遵循的原则10

3.1.3设备物料衡算10

3.2能量衡算11

3.2.1能量衡算的意义11

3.2.2物料衡算遵循的原则12

3.3设备能量衡算12

3.3.1气体净化工段12

3.3.2气体分离工段12

3.3.3乙烯精馏工段13

3.3.4丙烯精馏工段13

第4章主要设备工艺尺寸设计14

4.1换热器设计计算14

4.1.1换热器选型说明14

4.1.2选型范例――换热器E30115

4.1.3换热器选型一览表19

4.2精馏塔设计计算20

4.2.1塔设备设计原则20

4.2.2设计标准20

4.2.3乙烯精馏塔设计21

4.3风机、压缩机设计及选型38

4.3.1选型原则38

4.3.2风机、压缩机具体选型39

参考文献39

总结40

参考文献41

致谢43