化工学报2011，Vol.62Issue(6)：1509-1514,6.DOI:10.3969/j.issn.0438-1157.2011.06.005
丙烯聚合卧式搅拌床反应器中持料量的检测
Measurement of bed mass in propylene polymerization horizontal stirred bed reactor
摘要
Abstract
A model of bed mass in propylene polymerization horizontal stirred bed reactor (HSBR) was proposed to explore the quantitative relationship between acoustic emission (AE) energy and bed mass,based on the mechanism of acoustic signals emitted by collision between particles and reactor wall. The system of air and polypropylene was used as an example and investigated at the bed mass range from 11.5 kg to 23 kg. It was found that single-point acoustic energy grew exponentially with increasing bed mass. Fitting results showed that the correlation coefficient was 0. 9929 between AE energy and bed mass by using the model proposed. The feasibility of scaling up on an industrial plant was studied and test results were in accordance with the theoretical model. Therefore, single-point acoustic emission method makes it possible to monitor the bed mass on-line and further to predict whether the bed level is stable in HSBR,which is of great importance to optimize and better control the propylene polymerization process.关键词
声发射/单点/持料量/料位Key words
acoustic emission/ single-point/ bed mass/ bed level分类
化学化工引用本文复制引用
董克增,任聪静,王靖岱,阳永荣..丙烯聚合卧式搅拌床反应器中持料量的检测[J].化工学报,2011,62(6):1509-1514,6.基金项目
国家自然科学基金项目(21076180) （21076180）
中央高校基本科研业务费专项资金资助项目(2009QNA4028). （2009QNA4028）
