摘要:随着聚丙烯工业的快速发展,国内普通聚丙烯市场虽已逐渐趋于饱和,但具有特殊功能的聚丙烯仍然需要大量进口。因此,本设计以丙烷为原料,采用Oleflex和Spheripol-Ⅱ耦合工艺生产具有一定耐抗冲性的聚丙烯。利用流程模拟软件AspenPlus8。4对丙烷提纯工段、丙烷脱氢工段、丙烯精制工段、预聚合工段、聚合反应工段及聚丙烯精制工段进行全流程模拟,并对精馏塔采用严格计算,得到精馏塔的操作参数。运用换热网络夹点分析法,对全流程的换热网络进行优化改进。通过ExchangerDesign&Rating,对换热器进行设计、选型与校核。91515
毕业论文关键词:丙烷,聚丙烯,耦合工艺,流程模拟,换热器
Abstract:With the rapid development of polypropylene industry, the domestic polypropylene
market of general level has gradually saturated but the polypropylene with special performance still needs a large number of imports。 Therefore, this design adopts Oleflex and Spheripol-Ⅱ coupling process to produce polypropylene with a certain impact resistance using propane as raw
materials。 Based on process simulation software Aspen Plus 8。4, the operating parameters of rectification columns are obtained by adopting strict calculations to the rectification columns。 The whole process simulation including propane gas purification, propane dehydrogenation, propylene refining, pre-aggregated, polymerization and polypropylene refining is modeled。 The heat exchange network of the whole process is optimized according to the pinch analysis method, and the heat exchangers are designed, selected and checked by the Exchanger Design & Rating。
Key words: propane,polypropylene,coupling process,process simulation,heat exchanger
目录
1 前言 1
2 聚丙烯生产工艺设计 2
2。1 丙烯生产单元工艺方案 2
2。1。1 丙烷催化脱氢制丙烯 2
2。1。2 丙烷催化氧化脱氢制丙烯 2
2。1。3 丙烷制丙烯技术方案比较 3
2。2 聚丙烯生产单元工艺方案 4
2。2。1 生产方法概述 4
2。2。2 工艺技术方案比较 4
2。3 整体工艺方案确定 6
3 聚丙烯生产工艺模拟 6
3。1 AspenPlus物性方法与模型 7
3。2 催化剂选择 8
3。3 分工段模拟与分析 9
3。3。1 丙烷提纯工段 9
3。3。2 丙烷脱氢反应工段 9
3。3。3 丙烯精制工段 10
3。3。4 预聚合工段 10