A proposed biomass char classification system

Lester, Edward and Avila, Claudio and Pang, Cheng Heng and Williams, Orla and Perkins, Joseph and Gaddipatti⁠, Sanyasi and Tucker, Gregory A. and Barraza, Juan Manuel and Trujillo-Uribe, María Patricia and Wu, Tao (2018) A proposed biomass char classification system. Fuel, 232 . pp. 845-854. ISSN 1873-7153

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Abstract

A new classification system is proposed for the morphological characterisation of char structures from biomass. These char structures are unlike the coal chars that have an established nomenclature via the International Committee of Coal and Organic Petrology (ICCP) which divides char structures into thin walled and thick walled spheres and networks, mixed dense and mixed porous, fusinoids and solids. The chars from biomass show a tendency, depending on heating regime, to produce different types of internal pore structure (cellular and porous) and aspect ratio (high and low) compared with coal chars. For this reason a new classification system has been developed to cover these new structures which should assist in combustion, co-firing and gasification research where these intermediate char structures play an important role in conversion efficiency. Low heating rates (using a muffle furnace at 1000°C and 3min) were used to create chars from 9 different biomass types, with a range of lignocellulosic compositions. Char type appeared to depend on the biomass type itself and original lignocellulosic composition (cellulose, lignin and hemicellulose content) and cell structure.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/950859
Keywords: Biomass char; Morphology; Cellular; Porosity; Aspect ratio; Solids; Pyrolysis
Schools/Departments: University of Nottingham Ningbo China > Faculty of Science and Engineering > Department of Chemical and Environmental Engineering
University of Nottingham, UK > Faculty of Engineering
University of Nottingham, UK > Faculty of Science > School of Biosciences > Division of Nutritional Sciences
Identification Number: https://doi.org/10.1016/j.fuel.2018.05.153
Depositing User: Eprints, Support
Date Deposited: 11 Jun 2018 08:15
Last Modified: 04 May 2020 19:49
URI: http://eprints.nottingham.ac.uk/id/eprint/52332

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