期刊
JOURNAL OF CLEANER PRODUCTION
卷 101, 期 -, 页码 323-336出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2015.03.101
关键词
End of Life Tyres; Pyrolysis; Porous materials; Energy recovery; SWOT analysis; Rotary kiln reactor
资金
- EC under the DEPOTEC project [LIFE10/ENV/IE/00695]
The present work addresses the importance of pyrolysis to manage waste tyres from a cleaner production and circular economy approach. Optimisation of End of Life Tyres (ELT) pyrolysis conditions, targeting to high added value products, requires further investigation, extensive products characterisation and standardisation. The experimental investigation and technical assessment of ELT pyrolysis in a batch rotary kiln reactor is addressed in the current study. Temperature, heating rate and particle size effects on product yields were studied. Yields and properties of the pyrolytic products are pointed out, with special attention given to the liquid fraction (properties as alternative fuel) and to solid fraction (highlighting its properties as activated carbon precursor). At pyrolysis temperature of 550 degrees C, heating rate of 20 degrees C/min and atmospheric pressure, tyre shredders of 15-20 mm particle size gave a maximum liquid yield of 51.8 wt%, while gas and char reached 12.1 wt% and 35.5 wt% respectively. The gaseous and liquid fractions obtained, exhibited high calorific values of 23.8 MJ/m(3) and 40.8 MJ/kg, respectively. Activation of solid fraction (char) with KOH (weight ratio 4:1) resulted in the production of a porous material exhibiting a N-2 BET surface area of 402 m(2)/g. (C) 2015 Elsevier Ltd. All rights reserved.
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