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

Maria Fernandez-Lopez, Kostas Anastasakis, Wiebren De Jong, Jose Luis Valverde, Luz Sanchez-Silva

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

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.

Original languageEnglish
Title of host publicationE3S Web of Conferences
Subtitle of host publicationInternational Conference on Advances in Energy Systems and Environmental Engineering (ASEE17)
EditorsB Kazmierczak, M Kutylowska, K Piekarska, H Jouhara, J Danielewicz
Place of PublicationLes Ulis Cedex A
PublisherEDP Sciences
Number of pages7
Volume22
DOIs
Publication statusPublished - 2017
EventInternational Conference on Advances in Energy Systems and Environmental Engineering - Wroclaw, Poland
Duration: 2 Jul 20175 Jul 2017

Publication series

NameE3S Web of Conferences
PublisherEDP Sciences
Volume22
ISSN (Electronic)2267-1242

Conference

ConferenceInternational Conference on Advances in Energy Systems and Environmental Engineering
Abbreviated titleASEE 17
CountryPoland
CityWroclaw
Period2/07/175/07/17

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