Pyrolysis of cassava peel in top-lit up-draft pyrolysis (TLUD-Pyro) reactor

Publication Type

Poster

Authors

Latif, S; Awiszus, S; Intani, K; Müller, J

Year of publication

2018

Published in

Bokk of Abstracts

Page (from - to)

397

Conference name

26th European Biomass Conference & Exhibition

Conference location

Copenhagen, Denmark

Keywords

Biochar, cassava peel, Pyroplysis, Self-purging

A combination of pyrolysis and gasification was used for this top-lit up-draft pyrolysis (TLUD-Pyro) reactor. Cassava peel was used as a feedstock for the pyrolysis in a self-purging Pyro reactor (C) while maize cobs were used as a fuel in TLUD gasifier (B) to provide the required energy for the pyrolysis. The objective of the present study was to evaluate the performance of this TLUD-Pyro reactor for cassava peels. Sixteen experimental runs were carried out in order to optimize the influence of holding time, primary and secondary air supply of the TLUD gasifier on the yield of biochar, condensates and the pyrolysis gas. The operational parameters i.e. holding time (30 min, 60 min and 90 min) and air supply (33% to 66% to 99%) for both the primary and the secondary air were varied. Among three operational parameters, holding time showed significant (P < 0.05) effect on pyro char. Under the optimum conditions i.e. 90 min holding time, 33% primary air supply and 75% secondary air supply, the analysis of the pyrolysis gas revealed 28% CO2, 28% CO, 23% H2, and 10% CH4. It was concluded that this mobile TLUD-Pyro reactor can produce valuable products from cassava peels. In future experiments, composition of the biochar and the condensates will be investigated.