Fuel 212 (2018) 533–545 Contents lists available at ScienceDirect Fuel journal homepage: www.elsevier.com/locate/fuel Pyrolysis of a lignite briquette – Experimental investigation and 1- dimensional modelling approach a a b a, Anthony De Girolamo , Vincent Tan , Zhenyu Liu , Lian Zhang Monash University, Wellington Road, Clayton, Victoria 3800, Australia State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 10029, PR China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: A laboratory-scale shaft furnace was used for the pyrolysis of the lignite briquette together with thermogravi- Lignite briquette pyrolysis metric analysis to study the intrinsic pyrolysis kinetics under two diﬀerent heating rates, 10 °C/min and 100 °C/ 1-D modelling coupled with CPD code min. Apart from coal conversion rate, the tar yield, quality and radical concentration in char were also measured Heating rate to explore the diﬀerence between lignite briquette and the respective pulverised powder. Additionally, a 1-D Radicals model coupled with the chemical percolation devolatilisation (CPD) code was developed to quantitatively un- derstand heat transfer using temperature dependent parameters; product distribution and yields, and the pyr- olysis mechanism. It was discovered that heat transfer was the limiting factor for pyrolysis of the lignite
Fuel – Elsevier
Published: Jan 15, 2018
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