毕业设计说明书中文摘要煤基多联产系统被认为是IGCC的发展和延续，是有望实现煤的清洁、高效、联合利用的技术。考虑到我国的能源结构、利用现状以及对乙二醇需求量的增长，有学者提出了煤基乙二醇多联产系统。在该系统中，煤被热解后产生焦油和合成气，合成气经净化、分离脱氢后可用于合成乙二醇，未反应的气体被送入联合循环发电单元发电。应用Aspen Plus软件对煤基乙二醇多联产系统、Texaco IGCC和Shell IGCC系统进行全流程模拟，模拟结果表明煤基乙二醇多联产系统具有更高的系统热效率，其系统热效率可以达到50。3%，该系统可同时生产焦油、乙二醇和电力，产量分别为焦油22。68 t/h，乙二醇49。65 t/h，电力492。04 MW。83127
毕业论文关键词 多联产 乙二醇 IGCC Aspen Plus
毕业设计说明书外文摘要
Title Process Simulation of Coal-based Polygengeration system, Texaco IGCC and Shell IGCC Using Aspen Plus
Abstract Coal polygeneration system is considered to be a continuation and development of IGCC，it is expected to achieve efficient and clean joint use of coal technology。 Taking into account China's energy structure, the use of the status quo and the growth in demand for ethylene glycol, some scholars have proposed a polygeneration systems for EG based on coal, in this system, tar and synthesis gas are produced after the pyrolysis of coal, then after purified and separated dehydrogenation, synthesized gas can be used for synthesis of ethylene glycol, unreacted synthesis gas is fed into the combined cycle power generation unit to generate electricity。 With the application of Aspen Plus software for coal-based polygeneration systems, Texaco IGCC and Shell IGCC system-wide process simulation, simulation results show that coal-based polygeneration systems for EG have higher thermal efficiency, the thermal efficiency can be achieved 50。3%, the system can produce tar, ethylene glycol and electricity at the same time, respectively tar yield 22。68 t / h, EG 49。65 t / h and power 492。04 MW。
Keywords Polygengeration EG IGCC Asepn Plus
目 次
1 引言 1
1。1 前言 1
1。3 ASPEN 软件在化工流程模拟的应用 6
1。4 本章小结 6
2 煤基乙二醇多联产系统的全流程模拟 7
2。1 煤基乙二醇多联产系统概述 7
2。1。1 乙二醇工艺路线的选择 8
2。1。2 煤制乙二醇流程系统说明 9
2。2 双流化床单元 9
2。2 空气分离单元 13
2。3 低温甲醇洗单元 16
2。4 乙二醇合成单元 18
2。4。1 CO催化偶联制备草酸二甲酯过程 19
2。4。2 草酸二甲酯加氢合成乙二醇过程 22
2。5 联合循环发电单元 25
2。6 本章小结 28 基于AspenPlus软件的IGCC系统及煤基多联产系统的全流程模拟:http://www.youerw.com/zidonghua/lunwen_97796.html