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Characterization of the physicochemical and structural evolution of biomass particles during combined pyrolysis and CO2 gasification

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Feb 2019Publisher:Elsevier BVJournal:Journal of the Energy Institute, volume 92, pages 82-93 (issn: 1743-9671,

Authors: John Eshun; Lijun Wang; Emmanuel Ansah; Abolghasem Shahbazi; Keith Schimmel; Vinayak Kabadi; Shyam Aravamudhan;

doi: 10.1016/j.joei.2017.11.003

Characterization of the physicochemical and structural evolution of biomass particles during combined pyrolysis and CO2 gasification

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Abstract

Abstract The combination of pyrolysis and CO2 gasification was studied to synergistically improve the syngas yield and biochar quality. The subsequent 60-min CO2 gasification at 800 °C after pyrolysis increased the syngas yield from 23.4% to 40.7% while decreasing the yields of biochar and bio-oil from 27.3% to 17.1% and from 49.3% to 42.2%, respectively. The BET area of the biochar obtained by the subsequent 60-min CO2 gasification at 800 °C was 384.5 m2/g, compared to 6.8 m2/g for the biochar obtained by the 60-min pyrolysis at 800 °C, and 1.4 m2/g for the raw biomass. The biochar obtained above 500 °C was virtually amorphous.

Related Organizations

North Carolina Agricultural and Technical State University
United States
North Carolina Agricultural and Technical State University
United States

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