Direct measurement of particle growth and interparticle adhesion force and DEM simulation under the vapor phase polymerization condition

气相聚合条件下颗粒生长和颗粒间粘附力的直接测量和DEM模拟

• 批准号: 11305057
• 负责人: HORIO Masayuki
• 金额: $ 13.44万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11305057/
• 关键词: Gas-phase olefin polymerization; Fluidized bed; Direct visual observation; Polymer particle growth; Micro-reactor; Reaction kinetics; Discrete element method; Particle-Particle interactions; 粉粒体; 反応速度; 赤外線熱画像装置; 離算要素法; 粒子間伝熱; 紛粒体; 離散要素法

To open a new microscopic approach to gas-phase olefin polymerization process, DEM simulation, direct visual observation of particle growth process, development of a kinetic model based on the growth data and direct measurements of particle-particle interaction were aimed at. A DEM model was successfully developed to simulate the effect of particle mixing on non-isothermal temperature field in the polymerization reactor. Experimentally, the particle growth process was made possible to observe visually in a microreactor. The particle growth data were successfully reproduced by the newly developed kinetic model. Parameters determined by the model fitting to the observed data are in reasonable range compared to the previously predicted values. Particle-particle interactions in terms of cohesion as well as heat transfer were observed by a particle interaction meter newly developed and by an IR camera, respectively. A pressurized particle interaction meter was designed and constructed. All of these achievements are original and nothing similar has yet reported by other investigators.

为了开辟一种研究气相烯烃聚合过程的新微观方法，本文的目标是进行离散元模拟、直接直观观察颗粒生长过程、基于生长数据建立动力学模型以及直接测量颗粒与颗粒之间的相互作用。建立了聚合反应器内颗粒混合对非等温温度场影响的离散元模型。在实验上，颗粒生长过程可以在微反应器中目视观察。新开发的动力学模型成功地再现了颗粒生长数据。通过对观测数据的模型拟合确定的参数与先前预测的值相比在合理的范围内。用新近研制的粒子相互作用仪和红外照相机分别观察了凝聚力和传热方面的粒子-粒子相互作用。设计并制作了一台加压粒子相互作用测量仪。所有这些成果都是原创性的，其他研究人员还没有报道过类似的成果。

项目成果

K.Kuwagi,K.Takano and M.Horio: ""The effect of tangential lubrication by bridge liquid on the behavior of agglomerating fluidized beds""Powder Technology. Vol.113. 287-298 (2000)

K.Kuwagi、K.Takano 和 M.Horio：“桥液切向润滑对附聚流化床行为的影响”粉末技术。

R.Kobylecki,T.Fukumoto,N.Horio: "On the microscopic aspect of interparticle heat transfer"2000 China-Japan Symp.on Fluidization. (発表予定). (2000)

R.Kobylecki、T.Fukumoto、N.Horio：“论颗粒间传热的微观方面”2000 年中日流态化研讨会（即将发表）。

Y.Kaneko, T.Shiojima, M.Horio: "DEM Simulation of Fluidized Beds for Gas-phase Olefin Polymerization"Chemical Engineering Science. 54. 5809-5821 (1999)

Y.Kaneko、T.Shiojima、M.Horio：“气相烯烃聚合流化床的 DEM 模拟”化学工程科学。

Y.Kaneko,T.Shiojima and M.Horio: ""DEM simulation of fluidized beds for gas-phase olefin polymerization""Chemical Engineering Science. Vol.54. 5809-5821 (1999)

Y.Kaneko、T.Shiojima 和 M.Horio：“气相烯烃聚合流化床的 DEM 模拟”《化学工程科学》。