title: Morphology and reactivity characteristics of char biomass particles.
abstract: In this work, 10 different biomasses were selected which included directly grown energy crops, industrial waste material and different wood types. Each biomass was sieved into six different size fractions and pyrolysed in a fixed bed furnace preheated to 1000 °C to produce a char residue. Intrinsic reactivity during burnout was measured using a non-isothermal thermogravimetric method. Scanning electron microscopy and oil immersion microscopy were used to characterise the morphology of the products. Char morphology was summarised in terms of degree of deformation, internal particle structure and wall thickness. Intrinsic reactivity corresponded directly with these morphology groupings showing a significant correlation between char morphotypes, char reactivity and the initial biomass material.
authors.affiliation: Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
authors.forename: Claudio
authors.initials: C
authors.lastname: Avila
authors.forename: Cheng Heng
authors.initials: CH
authors.lastname: Pang
authors.forename: Tao
authors.initials: T
authors.lastname: Wu
authors.forename: Ed
authors.initials: E
authors.lastname: Lester
mesh_terms: D018533:Biomass; D008855:Microscopy, Electron, Scanning; D010316:Particle Size; D013818:Thermogravimetry; D014934:Wood