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《Journal of Transcluction Technology》 2003-03
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On-line Measurements and Model Analysis of Gas-phase Ethylene Polymerization Process in Fluidized Bed Reactor (I)

LIANG JunInstitute of System Engineering, Department of Control Science and Engineering,National Lab. of Industrial Control Tech. Zhejiang University, Hangzhou 310027, P. R.China  
The process of gas phase ethylene polymerization in fluidized bed reactor (FBR) is one class of typical multi variable nonlinear systems. After discussing the interaction between process variables (reactor temperature, for example) and quality variables (melt index and density, for example), this paper developed a nonlinear partial least squares (PLS) regression model for on line resin qualities calculating based upon multivariable statistical projection technique and Taylor expansion principles. All the algorithms were proved. As a key step of this work, model verification is presented by using real operating data gathered from a industrial Unipol LLDPE FBR.The estimation of resin melt index and density by nonlinear PLS model were compared with by linear PLS and mechanical models. Finally, the relations between process variables and quality variables were analyzed by on line predicting of melt index and density.\;This paper is divided into two parts, and this is the first part.
【Fund】: 国家 8 6 3计划的资助( 86 3- 5 11- 92 0 - 0 11和 2 0 0 1AA4 112 30 )
【CateGory Index】: TP274.4
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【References】
Chinese Journal Full-text Database 2 Hits
1 LIANG JunInstitute of System Engineering, Department of Control Science and Engineering,National Lab. of Industrial Control Tech. Zhejiang University, Hangzhou 310027, P. R.China;On-line Measurements and Model Analysis of Gas-phase Ethylene Polymerization Process in Fluidized Bed Reactor (II)[J];Journal of Transcluction Technology;2003-03
2 Chen Yanqing,Feng Lianfang,Wang Jiajun,Gu Xueping(State Key Laboratory of Polymer Reaction Engineering,College of Materials Scienceand Chemical Engineering,Zhejiang University,Hangzhou 310027,China);Development in modeling the macro-scale phenomena of fluidized bed reactor for polyolefin production[J];Petrochemical Technology & Application;2007-03
【Citations】
Chinese Journal Full-text Database 3 Hits
1 LIANG\ Jun Institute of System Engineering, Department of Control Science and Engineering National Lab\;of Industrial Control Tech.Zhejiang University Hangzhou, 310027, P. R. China;Measurements of Quality Variables for an Industrial Rolling Mill Reheating Furnace (I)[J];Journal of Transcluction Technology;2003-01
2 LIANG Jun Institute of System Engineering, Department of Control Science and Engineering National Lab. of Industrial Control Tech. Zhejiang University, Hangzhou 310027, P.R.China;Measurements of Quality Variables for an Industrial Rolling Mill Reheating Furnace (II)[J];Journal of Transcluction Technology;2003-02
3 LIANG JunInstitute of System Engineering, Department of Control Science and Engineering,National Lab. of Industrial Control Tech. Zhejiang University, Hangzhou 310027, P. R.China;On-line Measurements and Model Analysis of Gas-phase Ethylene Polymerization Process in Fluidized Bed Reactor (II)[J];Journal of Transcluction Technology;2003-03
【Co-citations】
Chinese Journal Full-text Database 5 Hits
1 LIANG Jun Institute of System Engineering, Department of Control Science and Engineering National Lab. of Industrial Control Tech. Zhejiang University, Hangzhou 310027, P.R.China;Measurements of Quality Variables for an Industrial Rolling Mill Reheating Furnace (II)[J];Journal of Transcluction Technology;2003-02
2 ZHANG Hong-tao1,DUAN Fa-jie1,DING Ke-qin2,YE Sheng-hua11.State Key Lab of Precision Measurement Technology & Instruments,Tianjin University,Tianjin 300072,China;2.Centre of Boiler and Pressure Vessel Inspection and Research,Beijing 100013,China;Study on On-Line Surface Defect Detection Vision System for Steel Strip[J];Chinese Journal of Sensors and Actuators;2007-08
3 DUAN Yinga,LIN Taob,DUAN Wen-zeb(a.College of Mechanical Engineering;b.College of Electrical Engineering,Chongqing University,Chongqing 400030,China);Converse Illation Method on Optimal Control of Reheating Furnace[J];Journal of Chongqing University(Natural Science Edition);2007-08
4 LIN Tao1,2, DUAN Wen-ze1,2, LI Chang-chun1,2,ZUO Wei-heng1,2(1. The Key Laboratory of High Voltage Engineering & Electrical New Technology, Ministry of Education Chongqing University, Chongqing 400044,China; 2. College of Electrical Engineering ,Chongqing University, Chongqing 400044,China);Comparison of Modeling Methods for Reheating Furnace[J];Computer Simulation;2008-03
5 LI Fan1,WU Qiang2,YANG Ying-hua2,LIU Xiao-zhi2(1.Measurement and Control Department,Benxi Iron & Steel Company,Benxi 117000,China;2.College of Information Science and Engineering,Northeastern University,Shenyang 110004,China);Recursive PLS Based Adaptive Steel Temperature Soft Sensor Model[J];Control Engineering of China;2007-02
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 GUO Ya-fen (Baosteel Technology Center,Shanghai 201900,China);Modeling Method for Production Process Control and Its Applications[J];Bao Steel Technology;2004-S1
2 Yi Ling-zhi, Zhu Jian-lin, Zhang Lin-ting, LI Wei-ping (College of Information Engineering, Xingtan University, Xingtan 411105, China);Engineering Design of Soft Measurement[J];Ordnace Industry Automation;2002-06
3 WANG Hui\|wen (Beijing University of Aeronautics and Astronautics,School of Management) LIU Qiang (Beijing University of Aeronautics and Astronautics,School of Mechanical Engineering and Automation)TU Yong\|ping (Beijing University of Aeronautics and;Identification of Optimal Subspace from PLS Regression[J];JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS;2000-04
4 WANG Hui (Department of Automation, Beijing University of Chemical Technology, Beijing 100029, China);Polymerisation control and its headway[J];JOURNAL OF BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY;2000-02
5 CONG Zhiru~1,WANG Chunyang~1,WANG Shuting~2,LIU Chunhui~1,HAN Yu~1(1.College of Electronics and Information Engineering,Changchun University of Science and Technology,Changchun 130022;2.China Unicom,Inner Mongolia Huhehaote 010000);The Application of Fuzzy Controller in the Control System of the Level of Water[J];;2006-04
6 HE Da-kuo, WANG Fu-li, JIA Ming-xing, SANG Hai-feng(Key Laboratory of Process Industry Automation of MOE & Liaoning Province, Northeastern University, Shenyang 110004, China. );Application of Genetic Algorithm in Economic Dispatch of Power Systems[J];JOURNAL OF NORTHEASTERN UNIVERSITY;2006-11
7 ZHAO Chen-chen;Introduction of a Useful Industrial Flowsheet Simulation Program, ASPEN PLUS[J];Power System Engineering;2003-02
8 Huang Huixian Shi Zhongke(Information Engineering College, Xiangtan University, Xiangtan 411105, China) (Dept. of Automatic Cont. Eng., Northwestern Polytechnical Univ., Xi'an 710072, China);A HYBRID ALGORITHM FOR FINDING GLOBAL OPTIMUM WITH GENETIC ALGORITHM[J];Journal of Electronics and Information Technology;2001-09
9 Chu Xiaoli, Yuan Hongfu, Wang Yanbin, Lu Wanzhen (Research Institute of Petroleum Processing, Beijing 100083);Variable Selection for Partial Least Squares Modeling by Genetic Algorithms[J];Chinese Journal of Analytieal Chemistry;2001-04
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【Secondary Citations】
Chinese Journal Full-text Database 4 Hits
1 LIANG\ Jun Institute of System Engineering, Department of Control Science and Engineering National Lab\;of Industrial Control Tech.Zhejiang University Hangzhou, 310027, P. R. China;Measurements of Quality Variables for an Industrial Rolling Mill Reheating Furnace (I)[J];Journal of Transcluction Technology;2003-01
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3 LIANG Jun (Zhejiang University);RESEARCH AND DEVELOPMENT ON INTEGRATED COMPUTER CONTROL SYSTEM FOR REHEATING FURNACES[J];IRON AND STEEL;1998-08
4 YANG YONGYAO LU YONGZAI(Zhejiang University);HIERACHICAL COMPUTER CONTROL FOR SLAB REHEATING FURNACE[J];Acta Automatica Sinica;1989-04
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