Title:
A Novel Approach for Estimating the Hydrophobicity of Solid Biofuels based on Contact Angle Measurements
Author(s):
Mišljenović, N., Bach, Q.V., Tran, K.Q., Skreiberg, Ø., Schüller, R.B., Salas-Bringas, C.
Document(s):
Paper
Poster
Abstract:
The aim of this paper is to assess a novel approach for estimating hydrophobicity of torrefied pellets by measuring the contact angle of a sessile water drop placed on the surface of a pellet. The hydrophobicity was evaluated by following two parameters – initial contact angle and apparent rate of water drop absorption. Raw birch and birch torrefied at 225 and 275°C served as model materials for testing the method. The results confirmed the hydrophobicity of torrefied birch, and proved that the method is suitable for densified biomass like pellets or briquettes. Raw birch had lower initial contact angle and higher rate of water absorption compared to torrefied samples.
Keywords:
pellet, torrefaction, hydrophobicity, contact angle measurements
Topic:
Biomass Conversion Technologies for Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Production of advanced solid biofuels
Event:
23rd European Biomass Conference and Exhibition
Session:
3BV.1.20
Pages:
1188 - 1192
ISBN:
978-88-89407-516
Paper DOI:
10.5071/23rdEUBCE2015-3BV.1.20
Price:
FREE
