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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1177/0734242X15573656
|2 doi
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|a pubmed24n0823.xml
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|a (DE-627)NLM246929839
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|a (NLM)25755167
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Janajreh, Isam
|e verfasserin
|4 aut
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|a Numerical simulation of waste tyres gasification
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|c 2015
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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 24.02.2016
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|a Date Revised 30.05.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author(s) 2015.
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|a Gasification is a thermochemical pathway used to convert carbonaceous feedstock into syngas (CO and H2) in a deprived oxygen environment. The process can accommodate conventional feedstock such as coal, discarded waste including plastics, rubber, and mixed waste owing to the high reactor temperature (1000 °C-1600 °C). Pyrolysis is another conversion pathway, yet it is more selective to the feedstock owing to the low process temperature (350 °C-550 °C). Discarded tyres can be subjected to pyrolysis, however, the yield involves the formation of intermediate radicals additional to unconverted char. Gasification, however, owing to the higher temperature and shorter residence time, is more opted to follow quasi-equilibrium and being predictive. In this work, tyre crumbs are subjected to two levels of gasification modelling, i.e. equilibrium zero dimension and reactive multi-dimensional flow. The objective is to investigate the effect of the amount of oxidising agent on the conversion of tyre granules and syngas composition in a small 20 kW cylindrical gasifier. Initially the chemical compositions of several tyre samples are measured following the ASTM procedures for proximate and ultimate analysis as well as the heating value. The measured data are used to carry out equilibrium-based and reactive flow gasification. The result shows that both models are reasonably predictive averaging 50% gasification efficiency, the devolatilisation is less sensitive than the char conversion to the equivalence ratio as devolatilisation is always complete. In view of the high attained efficiency, it is suggested that the investigated tyre gasification system is economically viable
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Gasification
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|a biomass
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|a cold efficiency
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|a reactive flow
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|a syngas
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|a Gases
|2 NLM
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|a Waste Products
|2 NLM
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| 650 |
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|a Carbon Monoxide
|2 NLM
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| 650 |
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|a 7U1EE4V452
|2 NLM
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| 650 |
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|a Hydrogen
|2 NLM
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| 650 |
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|a 7YNJ3PO35Z
|2 NLM
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| 700 |
1 |
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|a Raza, Syed Shabbar
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
|d 1991
|g 33(2015), 5 vom: 03. Mai, Seite 460-8
|w (DE-627)NLM098164791
|x 1096-3669
|7 nnns
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| 773 |
1 |
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|g volume:33
|g year:2015
|g number:5
|g day:03
|g month:05
|g pages:460-8
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|u http://dx.doi.org/10.1177/0734242X15573656
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