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Coal and Clean Coal Technology: Challenges and Opportunities Read chapter Read first chapter

2013 | OriginalPaper | Chapter

Effects of Fractal Pore on Coal Devolatilization

Authors : Yongli Chen, Xiaoliang Wang, Liyong Cao, Rong He

Published in: Cleaner Combustion and Sustainable World

Publisher: Springer Berlin Heidelberg

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Abstract

Coal devolatilization is numerically investigated by drop tube furnace and a coal pyrolysis model (Fragmentation and Diffusion Model). The fractal characteristics of coal and char pores are investigated. Gas diffusion and secondary reactions in fractal pores are considered in the numerical simulations of coal devolatilization, and the results show that the fractal dimension is increased firstly and then decreased later with increased coal conversions during devolatilization. The mechanisms of effects of fractal pores on coal devolatilization are analyzed.

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Metadata
Title
Effects of Fractal Pore on Coal Devolatilization
Authors
Yongli Chen
Xiaoliang Wang
Liyong Cao
Rong He
Copyright Year
2013
Publisher
Springer Berlin Heidelberg
Book
Cleaner Combustion and Sustainable World

Print ISBN: 978-3-642-30444-6

Electronic ISBN: 978-3-642-30445-3

Copyright Year: 2013

DOI
https://doi.org/10.1007/978-3-642-30445-3_26