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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2013.08.021
|2 doi
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|a pubmed25n0769.xml
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|a (DE-627)NLM230957390
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|a (NLM)24045169
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|a (PII)S0956-053X(13)00394-2
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Yuan, G
|e verfasserin
|4 aut
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|a High efficiency chlorine removal from polyvinyl chloride (PVC) pyrolysis with a gas-liquid fluidized bed reactor
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 09.01.2015
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|a Date Revised 19.05.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2013 Elsevier Ltd. All rights reserved.
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|a In this research a gas-liquid fluidized bed reactor was developed for removing chlorine (Cl) from polyvinyl chloride (PVC) to favor its pyrolysis treatment. In order to efficiently remove Cl within a limited time before extensive generation of hydrocarbon products, the gas-liquid fluidized bed reactor was running at 280-320 °C, where hot N2 was used as fluidizing gas to fluidize the molten polymer, letting the molten polymer contact well with N2 to release Cl in form of HCl. Experimental results showed that dechlorination efficiency is mainly temperature dependent and 300 °C is a proper reaction temperature for efficient dechlorination within a limited time duration and for prevention of extensive pyrolysis; under this temperature 99.5% of Cl removal efficiency can be obtained within reaction time around 1 min after melting is completed as the flow rate of N2 gas was set around 0.47-0.85 Nm(3) kg(-1) for the molten PVC. Larger N2 flow rate and additives in PVC would enhance HCl release but did not change the final dechlorination efficiency; and excessive N2 flow rate should be avoided for prevention of polymer entrainment. HCl is emitted from PVC granules or scraps at the mean time they started to melt and the melting stage should be taken into consideration when design the gas-liquid fluidized bed reactor for dechlorination
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Dechlorination (chlorine removal)
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|a Gas–liquid fluidized bed reactor
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|a Polyvinyl chloride (PVC)
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|a Pyrolysis
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|a Chlorine
|2 NLM
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|a 4R7X1O2820
|2 NLM
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|a Polyvinyl Chloride
|2 NLM
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|a 9002-86-2
|2 NLM
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| 650 |
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|a Hydrochloric Acid
|2 NLM
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| 650 |
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|a QTT17582CB
|2 NLM
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| 700 |
1 |
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|a Chen, D
|e verfasserin
|4 aut
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| 700 |
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|a Yin, L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Z
|e verfasserin
|4 aut
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| 700 |
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|a Zhao, L
|e verfasserin
|4 aut
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|a Wang, J Y
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 34(2014), 6 vom: 15. Juni, Seite 1045-50
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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| 773 |
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|g volume:34
|g year:2014
|g number:6
|g day:15
|g month:06
|g pages:1045-50
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|u http://dx.doi.org/10.1016/j.wasman.2013.08.021
|3 Volltext
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