基于图像法的甲醇制烯烃流化床反应器内催化剂颗粒输送分离高度的研究  

Research on Transport Disengaging Height of Catalyst Particles in Fluidized Bed Reactor for Methanol to Olefins Based on Image Method

作　　者：邱嘉明 陆勇[1] 张勉照 肖睿[1] 叶茂[2] QIU Jiaming;LU Yong;ZHANG Mianzhao;XIAO Rui;YE Mao

机构地区：[1]东南大学能源与环境学院 [2]中国科学院大连化学物理研究所

出　　处：《化工装备技术》2018年第2期1-7,共7页Chemical Equipment Technology

基　　金：国家自然科学基金(6503000053);江苏省科技成果转化专项资金项目(BA2016064)

摘　　要：甲醇制烯烃(MTO)生产过程中,输送分离高度直接影响反应器和再生器的结构尺寸、相关位置及催化剂的损失等。使用平均粒径为90 mm的工业MTO催化剂颗粒,在覫90 mm×1 000 mm的有机玻璃冷态试验台上对催化剂颗粒的浓度分布和输送分离高度随流化气速的变化情况进行研究。采用粒子图像测速技术获取冷态床的实验图像,并通过数字图像处理技术最终获得MTO催化剂颗粒的浓度分布。在此基础上建立数学模型,进行计算回归,得到其与催化剂颗粒输送分离高度的实验关联式。During the process of methanol to olefins（ MTO）,Transport Disengaging Height（ TDH） directly affects the structure, size, relevant positions of reactor and regenerator during the production, as well as the loss of catalyst. The average particle diameter of industrial methanol to olefin catalyst particles used was 90 mm. The catalyst particle concentration distribution and TDH varied with the fluidizing gas velocity were studied in the organic glass cold state test rig. Particle image velocimetry（ PIV） was used to acquire the experimental image of cold bed, and the concentration distribution of MTO catalyst particles was finally obtained by digital image processing technology. On the basis of regression analysis to the experimental data, a mathematical model was established and the experimental correlation for TDH of catalyst particles was obtained.

关 键 词：甲醇制烯烃 催化剂颗粒 输送分离高度 浓度分布 数字图像处理 

分 类 号：TQ211[化学工程—有机化工]