Energy densification of animal waste lignocellulose biomass and raw biomass

Show simple item record Pahla, Godwell Mamvura, Tirivaviri Augustine Ntuli, Freeman Muzenda, Edison 2019-08-13T07:14:15Z 2019-08-13T07:14:15Z 2017-06
dc.identifier.citation Pahla G, t al (2017) Energy densification of animal waste lignocellulose biomass and raw biomass. South African Journal of Chemical Engineering, 24,168-175. en_US
dc.identifier.issn 1026-9185
dc.description.abstract The need to reduce carbon emissions has encouraged more research into use of biomass energy in place of coal. Biomass is carbon neutral; its use can therefore lower net emissions. Biomass can be upgraded to a fuel similar to coal by torrefaction. Different biomass have been torrefied but there is limited research in possible use of lignocellulose biomass from animal waste. This study aims to compare extent of energy densification of torrefied cow dung, corn cob and pine wood. They were dried, ground and sieved. Proximate and ultimate analysis was conducted. The samples were then torrefied at 200, 250 and 300 C at 10 degrees Celsius/min for 40 min. The resulting biochar were characterized using mass yield, higher heating value, energy yield and density. Biochar obtained at 250 C were analyzed for elemental composition. Results were compared to Anglo bituminous coal and other torrefied biomass in literature. Corn cob and pine wood reached a maximum of 25.98 MJ/kg and 20.90 MJ/kg in heating value respectively whilst cow dung only increased to a maximum of 18.60 MJ/kg. Increase in heating value for corn cob was attributed to reduction in oxygen due to release of volatiles as well as water. This lowered the O/C ratio thereby densifying the fuel. The O/C and H/C ratio for corncob and wood moved towards that of bituminous coal unlike that of cow dung. Cow dung had a high inorganic composition so its heating value could not be upgraded as much as the other 2 biomass. Its use as a torrefaction raw material was therefore discouraged. en_US
dc.language.iso en en_US
dc.publisher Institution of Chemical Engineers ,Published by Elsevier en_US
dc.subject Torrefaction en_US
dc.subject Biomass en_US
dc.subject Temperature en_US
dc.subject Cow Dung en_US
dc.subject Corn Cobs en_US
dc.subject Pine Wood en_US
dc.title Energy densification of animal waste lignocellulose biomass and raw biomass en_US
dc.description.level phd en_US
dc.description.accessibility unrestricted en_US
dc.description.department cme en_US

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