期刊
BIORESOURCE TECHNOLOGY
卷 110, 期 -, 页码 645-651出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.01.068
关键词
Biomass volatiles; O-2/CO2 gasification; Polycyclic aromatic hydrocarbon; Soot formation; Reaction mechanism
资金
- Japan Society for the Promotion of Science (JSPS) [22241020]
- Global Center of Excellence in Novel Carbon Resource Sciences, Kyushu University
- Grants-in-Aid for Scientific Research [22241020] Funding Source: KAKEN
To increase syngas production and minimize soot, polycyclic aromatic hydrocarbon (PAH), and CO2 emissions resulting from biomass combustion, the evolution of biomass volatiles during O-2/CO2 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 1073-1873 K and 0.1-2 MPa. The effect of temperature on product concentration was more emphasized than that of pressure. The effect of O-2/CO2 input on product concentration was investigated. O-2 concentration was important in reducing PAHs at low temperature. Below 1473 K, an increase in the O-2 concentration decreased PAH and soot production. However, if the target of CO2 concentration was higher than 0.22 in mass fraction terms, temperatures above 1473 K reduced PAHs and increased CO. (C) 2012 Elsevier Ltd. All rights reserved.
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