乙烯淤浆聚合动态分子量分布模拟计算

doi:10.3969/j.issn.0438-1157.2013.04.027

化工学报 ›› 2013, Vol. 64 ›› Issue (4): 1312-1317.DOI: 10.3969/j.issn.0438-1157.2013.04.027

乙烯淤浆聚合动态分子量分布模拟计算

奂金龙¹, 占志良¹, 陈曦¹, 邵之江¹, 姚臻², 顾雪萍², 冯连芳²

1. 工业控制技术国家重点实验室,浙江大学控制科学与工程学系,浙江杭州 310027;
2. 化学工程联合国家重点实验室,浙江大学化学工程与生物工程学系,浙江杭州 310027

收稿日期:2012-07-30 修回日期:2012-11-21 出版日期:2013-04-05 发布日期:2013-04-05
通讯作者: 陈曦
作者简介:奂金龙(1988—),男,硕士研究生。
基金资助:
国家重点基础研究发展计划项目(2012CB720503);国家自然科学基金项目(61074148);中央高校基本科研业务费专项资金。

Dynamic simulation of molecular weight distribution of ethylene slurry polymerization

HUAN Jinlong¹, ZHAN Zhiliang¹, CHEN Xi¹, SHAO Zhijiang¹, YAO Zhen², GU Xueping², FENG Lianfang²

1. State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China;
2. State Key Laboratory of Chemical Engineering, Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China

Received:2012-07-30 Revised:2012-11-21 Online:2013-04-05 Published:2013-04-05
Supported by:
supported by the National Basic Research Program of China(2012CB720503), the National Natural Science Foundation of China(61074148) and the Fundamental Research Funds for the Central Universities.

摘要/Abstract

摘要： 以乙烯淤浆聚合反应过程为研究对象,提出动态分子量分布的严格模型的数值计算方法。将动态分子量分布的大规模微分代数混合模型解耦为小规模微分代数方程组动态矩模型与大规模常微分方程组粒数衡算模型,然后通过变量解耦的方法进一步将大规模粒数衡算方程组转换为序贯差分方程组,实现了乙烯动态分子量分布严格模型的数值模拟计算。动态模拟乙烯聚合反应从一个稳态切换到另一个稳态,通过在切换后稳态的分子量分布计算结果与Flory分布计算方法进行比较,两者得到的分子量分布曲线吻合很好,证实了本文提出的动态模拟计算方法的精度和准确度都获得良好的保障。

关键词: 乙烯淤浆聚合, 动态模拟, 分子量分布

Abstract: Based on the dynamic model of ethylene slurry polymerization, a decoupling method was proposed for rigorous model calculation of molecular weight distribution(MWD).The MWD model in large scale differential-algebraic equations(DAEs) was decoupled to a moment model in small scale DAEs and chain length based MWD in large scale ordinary differential equations(ODEs).The variable decoupling method was further proposed to solve the large scale ODEs through numerical computation. Comparison of the MWD curves with Flory distribution calculation was also presented and discussed.

Key words: ethylene slurry polymerization, dynamic model, molecular weight distribution

中图分类号:

TQ325

奂金龙, 占志良, 陈曦, 邵之江, 姚臻, 顾雪萍, 冯连芳. 乙烯淤浆聚合动态分子量分布模拟计算[J]. 化工学报, 2013, 64(4): 1312-1317.

HUAN Jinlong, ZHAN Zhiliang, CHEN Xi, SHAO Zhijiang, YAO Zhen, GU Xueping, FENG Lianfang. Dynamic simulation of molecular weight distribution of ethylene slurry polymerization[J]. CIESC Journal, 2013, 64(4): 1312-1317.

参考文献 12

[1]	Gross J,Sadowski G. Perturbed-chain SAFT:an equation of state based on a perturbation theory for chain molecules[J].Industrial & Engineering Chemistry Research, 2001,40(4):1244-1260
[2]	Lophaven S N, Nielsen H B, Sndergaard J. DACE:a Matlab kriging toolbox[R].Informatics and Mathematical Modeling, Technical University of Denmark, 2002
[3]	Shen Hang(沈航).ASPEN modeling of slurry polyethylene production process[D].Hangzhou:Zhejiang University, 2006
[4]	Wächer A. An interior point algorithm for large-scale nonlinear optimization with applications in process engineering[D].Pittsburgh, PA, USA:Carnegie Mellon University, 2002
[5]	Cozewith C. Transient response of continuous-flow stirred-tank polymerization reactors[J].AIChE Journal, 1988, 34(2):272-282
[6]	Soares J B P, Hamielec A E.General dynamic mathematical-modeling of heterogeneous Ziegler-Natta and Metallocene catalyzed copolymerization with multiple-site types and mass and heat-transfer resistances[J].Polymer Reaction Engineering, 1995, 3(3):261-324
[7]	Shi Zijin(史子瑾). The Basis of Polymer Reaction Engineering(聚合反应工程基础)[M].Beijing:Chemical Industry Press, 1991
[8]	Flory P J.Principles of Polymer Chemistry[M].New York:Cornell University Press, 1953
[9]	Xie T, McAuley K B,Hsu J C C, Bacon D W. Modeling molecular weight development of gas-phase-olefin copolymerization[J].AIChE Journal, 1995,41(5):1251-1265
[10]	Feng Jian(冯剑).Radical polymerization product design and large-scale computing of molecular weight distribution[D].Hangzhou:Zhejiang University, 2007
[11]	Fan Weiwei(范伟伟).Large-scale dynamic optimization of polymer molecular weight distribution[D].Hangzhou:Zhejiang University, 2011
[12]	Gu Xueping(顾雪萍), Feng Lianfang(冯连芳), Wang Jiajun(王嘉骏),et al. Simulation for grade transition of ethylene slurry polymerization process[J].Science Paper Online(中国科技论文在线), 2008, 12(3):915-918

[1]	张兴硕, 罗雄麟, 许锋. 催化裂化装置反再系统动态模拟精细化与控制系统“工艺优先”配对设计[J]. 化工学报, 2022, 73(2): 747-758.
[2]	常诚, 冯连芳, 顾雪萍, 陈曦, 张才亮. 基于分子量分布指标的聚酯生产过程模拟方法[J]. 化工学报, 2020, 71(2): 708-714.
[3]	张镨, 周理, 郭开华, 陈正华, 王伟杰. 基于多点耦合的低温多股流换热过程动态模拟[J]. 化工学报, 2018, 69(S2): 167-173.
[4]	陈莉荣, 成路姣, 谷振超, 樊健, 张凯, 郑春丽. 天然磁铁矿/UV/S₂O₈^2-对焦化废水中不同种类有机物的去除特性[J]. 化工学报, 2018, 69(12): 5292-5300.
[5]	邱洁, 华涛, 何桂春, 伍祥, 沈海涛, 凌昊. Kaibel分壁精馏塔的压力补偿-温度控制[J]. 化工学报, 2018, 69(11): 4798-4813.
[6]	代军, 晏华, 王雪梅, 郭骏骏, 胡志德, 杨健健, 桑练勇. 分子量分布对低密度聚乙烯光氧老化特性的影响[J]. 化工学报, 2017, 68(1): 408-417.
[7]	阎海宇, 付强, 周言, 李冬冬, 张东辉. 真空变压吸附捕集烟道气中二氧化碳的模拟、实验及分析[J]. 化工学报, 2016, 67(6): 2371-2379.
[8]	邓文源, 田连军, 童文龙, 李宁, 郭开华, 黎文锋. 大型LNG储罐预冷动态模拟[J]. 化工学报, 2015, 66(S2): 399-404.
[9]	靳满满, 田文德, 张俊梅. FCCU反再系统异常工况的安全分析[J]. 化工学报, 2015, 66(9): 3649-3653.
[10]	骆广生, 王凯, 王佩坚, 吕阳成. 微反应器内聚合物合成研究进展[J]. 化工学报, 2014, 65(7): 2563-2573.
[11]	宋光, 赵永臣, 邱彤, 卢光明, 赵劲松, 陈丙珍. 乙烯装置开停车过程节能减排技术进展[J]. 化工学报, 2014, 65(7): 2696-2703.
[12]	郁晨晨, 刘晓宁, 李彦敏, 雍晓雨, 丁凌鹏, 魏荣卿, 郑涛. 新型聚四氢呋喃多元醇的合成及表征[J]. 化工学报, 2014, 65(5): 1935-1940.
[13]	宋光, 赵永臣, 张圣夫, 邱彤, 赵劲松. 乙烯装置裂解气压缩机开车过程动态模拟[J]. 化工学报, 2014, 65(12): 4839-4843.
[14]	李秀喜, 袁延江. 基于流程模拟的化工故障检测技术[J]. 化工学报, 2014, 65(11): 4472-4476.
[15]	高祯, 吴昌永, 周岳溪, 宋嘉美, 刘明国, 常丽君. 臭氧预氧化对石化污水厂二级出水水质的作用[J]. 化工学报, 2013, 64(9): 3390-3395.

乙烯淤浆聚合动态分子量分布模拟计算

Dynamic simulation of molecular weight distribution of ethylene slurry polymerization

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 12

相关文章 15

编辑推荐

Metrics

本文评价