Citation: Zheng-hong Luo, Yi Zheng, Zhi-kai Cao, Shao-hua Wen. SIMULATION OF EFFECTS OF REACTIVE IMPURITIES ON PROPYLENE POLYMERIZATION IN LOOP REACTORS THROUGH GENERATION FUNCTION TECHNIQUE[J]. Chinese Journal of Polymer Science, ;2007, 25(4): 365-377. shu

SIMULATION OF EFFECTS OF REACTIVE IMPURITIES ON PROPYLENE POLYMERIZATION IN LOOP REACTORS THROUGH GENERATION FUNCTION TECHNIQUE

Received Date: 17 July 2006
Revised Date: 18 September 2006

The estimation of the amount of reactive impurities in a loop reactor is of strategic importance to the propylene polymerization industry. It is essential to investigate the level of impurities in order to develop reliable monitoring and control strategies. This paper described one approach based on generation function technique with the following two steps. First, a new mechanism for propylene polymerization was proposed by considering the effects of the reactive impurities in the material on the propylene polymerization. Second, a series of equations of population balance for the propylene polymerization in loop reactors were established based on the proposed mechanism. Accordingly, the equations were transformed into the mathematic matrix through the generation function technique to investigate the effects of the reactive impurities on the propylene polymerization. Significant effects of the reactive impurities were analyzed through computational simulation. The results show that the concentration of active centre on catalysts and the polymerization conversion both decrease with the increase of the initial concentration of any reactive impurity; hydrogen concentration decreases with the increase of the initial concentration of ethylene or butylenes, whereas, it increases with the increase of the initial concentration of propadiene; the simulated weight average molecular weight and the molecular weight distribution index of polymer resins both increase with the increase of the initial concentration of ethylene or butylenes. They decrease with the increase of the initial concentration of propadiene.
1. [1]
  Zuyou Song , Yong Jiang , Qiao Gou , Yini Mao , Yimin Jiang , Wei Shen , Ming Li , Rongxing He . Promoting the generation of active sites through "Co-O-Ru" electron transport bridges for efficient water splitting. Chinese Chemical Letters, 2025, 36(4): 109793-. doi: 10.1016/j.cclet.2024.109793
2. [2]
  Fenglin Jiang , Anan Liu , Qian Wei , Youcai Hu . Editing function of type Ⅱ thioesterases in the biosynthesis of fungal polyketides. Chinese Chemical Letters, 2024, 35(10): 109504-. doi: 10.1016/j.cclet.2024.109504
3. [3]
  Chao Ma , Cong Lin , Jian Li . MicroED as a powerful technique for the structure determination of complex porous materials. Chinese Journal of Structural Chemistry, 2024, 43(3): 100209-100209. doi: 10.1016/j.cjsc.2023.100209
4. [4]
  Yang Yang , Jing-Li Luo , Xian-Zhu Fu . Water-oxidation intermediates enabling electrochemical propylene epoxidation. Chinese Journal of Structural Chemistry, 2024, 43(5): 100269-100269. doi: 10.1016/j.cjsc.2024.100269
5. [5]
  Huimin Gao , Zhuochen Yu , Xuze Zhang , Xiangkun Yu , Jiyuan Xing , Youliang Zhu , Hu-Jun Qian , Zhong-Yuan Lu . A mini review of the recent progress in coarse-grained simulation of polymer systems. Chinese Journal of Structural Chemistry, 2024, 43(5): 100266-100266. doi: 10.1016/j.cjsc.2024.100266
6. [6]
  Haoyang Wang , Ronghao Zhang , Yanlun Ren , Li Zhang . A convenient method for measuring gas-liquid volumetric mass transfer coefficient in micro reactors. Chinese Chemical Letters, 2024, 35(4): 108833-. doi: 10.1016/j.cclet.2023.108833
7. [7]
  Hailong He , Wenbing Wang , Wenmin Pang , Chen Zou , Dan Peng . Double stimulus-responsive palladium catalysts for ethylene polymerization and copolymerization. Chinese Chemical Letters, 2024, 35(7): 109534-. doi: 10.1016/j.cclet.2024.109534
8. [8]
  Junqing Wu , Yiyang Zhang , Qingqing Hong , Hui Yang , Lifeng Zhang , Ming Zhang , Lei Yu . Organometallic modification of silica with europium endowing the fluorescence properties: The key technique for numerical quality monitoring. Chinese Chemical Letters, 2025, 36(4): 110165-. doi: 10.1016/j.cclet.2024.110165
9. [9]
  Zhongyu Wang , Lijun Wang , Huaixin Zhao . DNA-based nanosystems to generate reactive oxygen species for nanomedicine. Chinese Chemical Letters, 2024, 35(11): 109637-. doi: 10.1016/j.cclet.2024.109637
10. [10]
  Yanqi Wu , Yuhong Guan , Peilin Huang , Hui Chen , Liping Bai , Zhihong Jiang . Preparation of norovirus GII loop mediated isothermal amplification freeze-drying microsphere reagents and its application in an on-site integrated rapid detection platform. Chinese Chemical Letters, 2024, 35(9): 109308-. doi: 10.1016/j.cclet.2023.109308
11. [11]
  Shiyu Hou , Maolin Sun , Liming Cao , Chaoming Liang , Jiaxin Yang , Xinggui Zhou , Jinxing Ye , Ruihua Cheng . Computational fluid dynamics simulation and experimental study on mixing performance of a three-dimensional circular cyclone-type microreactor. Chinese Chemical Letters, 2024, 35(4): 108761-. doi: 10.1016/j.cclet.2023.108761
12. [12]
  Sanmei Wang , Yong Zhou , Hengxin Fang , Chunyang Nie , Chang Q Sun , Biao Wang . Constant-potential simulation of electrocatalytic N₂ reduction over atomic metal-N-graphene catalysts. Chinese Chemical Letters, 2025, 36(3): 110476-. doi: 10.1016/j.cclet.2024.110476
13. [13]
  Bing Niu , Honggao Huang , Liwei Luo , Li Zhang , Jianbo Tan . Coating colloidal particles with a well-defined polymer layer by surface-initiated photoinduced polymerization-induced self-assembly and the subsequent seeded polymerization. Chinese Chemical Letters, 2025, 36(2): 110431-. doi: 10.1016/j.cclet.2024.110431
14. [14]
  Yan Wang , Huixin Chen , Fuda Yu , Shanyue Wei , Jinhui Song , Qianfeng He , Yiming Xie , Miaoliang Huang , Canzhong Lu . Oxygen self-doping pyrolyzed polyacrylic acid as sulfur host with physical/chemical adsorption dual function for lithium-sulfur batteries. Chinese Chemical Letters, 2024, 35(7): 109001-. doi: 10.1016/j.cclet.2023.109001
15. [15]
  Junying LI , Xinyan CHEN , Xihui DIAO , Muhammad Yaseen , Chao CHEN , Hao WANG , Chuansong QI , Wei LI . Chiral fluorescent sensor Tb³⁺@Cd-CP based on camphoric acid for the enantioselective recognition of R- and S-propylene glycol. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2497-2504. doi: 10.11862/CJIC.20240084
16. [16]
  Dan Ouyang , Huan Huang , Yanting He , Jiajing Chen , Jiali Lin , Zhuling Chen , Zongwei Cai , Zian Lin . Utilization of hydralazine as a reactive matrix for enhanced detection and on-MALDI-target derivatization of saccharides. Chinese Chemical Letters, 2024, 35(5): 108885-. doi: 10.1016/j.cclet.2023.108885
17. [17]
  Yuanyi Zhou , Ke Ma , Jinfeng Liu , Zirun Zheng , Bo Hu , Yu Meng , Zhizhong Li , Mingshan Zhu . Is reactive oxygen species the only way for cancer inhibition over single atom nanomedicine? Autophagy regulation also works. Chinese Chemical Letters, 2024, 35(6): 109056-. doi: 10.1016/j.cclet.2023.109056
18. [18]
  Xubin Qian , Lei Xu , Xu Ge , Zhun Liu , Cheng Fang , Jianbing Wang , Junfeng Niu . Can perfluorooctanoic acid be effectively degraded using β-PbO₂ reactive electrochemical membrane?. Chinese Chemical Letters, 2024, 35(7): 109218-. doi: 10.1016/j.cclet.2023.109218
19. [19]
  Chi Zhang , Ning Ding , Yuwei Pan , Lichun Fu , Ying Zhang . The degradation pathways of contaminants by reactive oxygen species generated in the Fenton/Fenton-like systems. Chinese Chemical Letters, 2024, 35(10): 109579-. doi: 10.1016/j.cclet.2024.109579
20. [20]
  Wenqing Deng , Fanfeng Deng , Ting Zhang , Junjie Lin , Liang Zhao , Gang Li , Yi Pan , Jiebin Yang . Continuous measurement of reactive ammonia in hydrogen fuel by online dilution module coupled with Fourier transform infrared spectrometer. Chinese Chemical Letters, 2025, 36(3): 110085-. doi: 10.1016/j.cclet.2024.110085

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(596)
HTML views(2)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return