Temperature influence on the fast pyrolysis of manure samples: Char, bio-oil and gases production

TY - GEN

T1 - Temperature influence on the fast pyrolysis of manure samples

T2 - International Conference on Advances in Energy Systems and Environmental Engineering, ASEE 2017

AU - Fernandez-Lopez, Maria

AU - Anastasakis, Kostas

AU - De Jong, Wiebren

AU - Valverde, Jose Luis

AU - Sanchez-Silva, Luz

PY - 2017/11/7

Y1 - 2017/11/7

N2 - Fast pyrolysis characterization of three dry manure samples was studied using a pyrolyzer. A heating rate of 600°C/s and a holding time of 10 s were selected to reproduce industrial conditions. The effect of the peak pyrolysis temperature (600, 800 and 1000°C) on the pyrolysis product yield and composition was evaluated. Char and bio-oil were gravimetrically quantified. Scanning electron microscopy (SEM) was used to analyse the char structure. H2, CH4, CO and CO2 were measured by means of gas chromatography (GC). A decrease in the char yield and an increase of the gas yield were observed when temperature increased. From 800°C on, it was observed that the char yield of samples Dig R and SW were constant, which indicated that the primary devolatilization reactions stopped. This fact was also corroborated by GC analysis. The bio-oil yield slightly increased with temperature, showing a maximum of 20.7 and 27.8 wt.% for samples Pre and SW, respectively, whereas sample Dig R showed a maximum yield of 16.5 wt.% at 800°C. CO2 and CO were the main released gases whereas H2 and CH4 production increased with temperature. Finally, an increase of char porosity was observed with temperature.

AB - Fast pyrolysis characterization of three dry manure samples was studied using a pyrolyzer. A heating rate of 600°C/s and a holding time of 10 s were selected to reproduce industrial conditions. The effect of the peak pyrolysis temperature (600, 800 and 1000°C) on the pyrolysis product yield and composition was evaluated. Char and bio-oil were gravimetrically quantified. Scanning electron microscopy (SEM) was used to analyse the char structure. H2, CH4, CO and CO2 were measured by means of gas chromatography (GC). A decrease in the char yield and an increase of the gas yield were observed when temperature increased. From 800°C on, it was observed that the char yield of samples Dig R and SW were constant, which indicated that the primary devolatilization reactions stopped. This fact was also corroborated by GC analysis. The bio-oil yield slightly increased with temperature, showing a maximum of 20.7 and 27.8 wt.% for samples Pre and SW, respectively, whereas sample Dig R showed a maximum yield of 16.5 wt.% at 800°C. CO2 and CO were the main released gases whereas H2 and CH4 production increased with temperature. Finally, an increase of char porosity was observed with temperature.

UR - http://www.scopus.com/inward/record.url?scp=85034454755&partnerID=8YFLogxK

U2 - 10.1051/e3sconf/20172200043

DO - 10.1051/e3sconf/20172200043

M3 - Conference article

AN - SCOPUS:85034454755

SN - 2100-014X

VL - 22

JO - E3S Web of Conferences

JF - E3S Web of Conferences

M1 - 00043

Y2 - 2 July 2017 through 5 July 2017

ER -