TY - JOUR
T1 - Optimized combustion of biomass volatiles by varying O 2 and CO 2 levels
T2 - A numerical simulation using a highly detailed soot formation reaction mechanism
AU - Wijayanta, Agung Tri
AU - Saiful Alam, Md
AU - Nakaso, Koichi
AU - Fukai, Jun
AU - Shimizu, Masakata
N1 - Funding Information:
This research work is partially supported by the Japan Society for the Promotion of Science (JSPS) Scientific Research (A), 2010–2011, Research Number 22241020. The authors also gratefully acknowledge a grant from the Global Center of Excellence in Novel Carbon Resource Sciences, Kyushu University.
PY - 2012/4
Y1 - 2012/4
N2 - To increase syngas production and minimize soot, polycyclic aromatic hydrocarbon (PAH), and CO 2 emissions resulting from biomass combustion, the evolution of biomass volatiles during O 2/CO 2 gasification was simulated. A highly detailed soot formation reaction mechanism flowing through the reactor, involving 276 species, 2158 conventional gas phase reactions and 1635 surface phase reactions, was modeled as a plug flow reactor (PFR). The reaction temperature and pressure were varied in the range 1073-1873K and 0.1-2MPa. The effect of temperature on product concentration was more emphasized than that of pressure. The effect of O 2/CO 2 input on product concentration was investigated. O 2 concentration was important in reducing PAHs at low temperature. Below 1473K, an increase in the O 2 concentration decreased PAH and soot production. However, if the target of CO 2 concentration was higher than 0.22 in mass fraction terms, temperatures above 1473K reduced PAHs and increased CO.
AB - To increase syngas production and minimize soot, polycyclic aromatic hydrocarbon (PAH), and CO 2 emissions resulting from biomass combustion, the evolution of biomass volatiles during O 2/CO 2 gasification was simulated. A highly detailed soot formation reaction mechanism flowing through the reactor, involving 276 species, 2158 conventional gas phase reactions and 1635 surface phase reactions, was modeled as a plug flow reactor (PFR). The reaction temperature and pressure were varied in the range 1073-1873K and 0.1-2MPa. The effect of temperature on product concentration was more emphasized than that of pressure. The effect of O 2/CO 2 input on product concentration was investigated. O 2 concentration was important in reducing PAHs at low temperature. Below 1473K, an increase in the O 2 concentration decreased PAH and soot production. However, if the target of CO 2 concentration was higher than 0.22 in mass fraction terms, temperatures above 1473K reduced PAHs and increased CO.
KW - Biomass volatiles
KW - O /CO gasification
KW - Polycyclic aromatic hydrocarbon
KW - Reaction mechanism
KW - Soot formation
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U2 - 10.1016/j.biortech.2012.01.068
DO - 10.1016/j.biortech.2012.01.068
M3 - Article
C2 - 22334001
AN - SCOPUS:84858298391
VL - 110
SP - 645
EP - 651
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -
