Dynamic model for polyethylene production in a multizone circulating reactor
The multizone circulating reactor (MZCR) technology is a newly announced reactor design for solid-catalyzed gas-phase polymerization. The process is characterized by two hydrodynamically distinct but interconnecting polymerization zones, thus forming a continuous loop of polymer flow between the sai...
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| Main Authors: | , , |
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| Format: | Article |
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Chemical Product and Process Modeling
2008
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/7043/ http://www.scopus.com/inward/record.url?eid=2-s2.0-43449135603&partnerID=40&md5=db701b5d9a13a91a17a460afda90b71f |
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| Summary: | The multizone circulating reactor (MZCR) technology is a newly announced reactor design for solid-catalyzed gas-phase polymerization. The process is characterized by two hydrodynamically distinct but interconnecting polymerization zones, thus forming a continuous loop of polymer flow between the said zones. In the present study, a dynamic model for the MZCR reactor is developed to illustrate the basic dynamic behavior of the new reactor design; the model is used to study the copolymerization of ethylene with butene. Several parameter sensitivity analyses are performed to show the computer-simulated time responses for reactor temperature, number-average molecular weight, weight-average molecular weight, catalyst feed rate and the monomer concentration along the reactor length. |
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