Knowledge Resource Center for Ecological Environment in Arid Area
PROPERTIES OF CHAR OF WOODY BIOMASS FROM AFFORESTATION OF ARID LAND WITH LESS CROP PRODUCTIVITY | |
Iwasaki, Toshiyuki; Kojima, Toshinori | |
通讯作者 | Kojima, Toshinori |
会议名称 | 3rd International Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE) / International-Society-for-Ecotoxicology-and-Environmental-Safety (SECOTOX) Conference |
会议日期 | JUN 19-24, 2011 |
会议地点 | GREECE |
英文摘要 | Woody biomass (Eucalyptus camaldulensis) produced at our plantation site in the arid area of Western Australia was pyrolyzed by a fluidized bed reactor (FBR). Pyrolysis temperature range was between 300 and 1400 degrees C, and heating rate was rapid (100-1000 degrees C/s) or slow (10 degrees C/min). The influence of pyrolysis temperature and heating rate on char yield was investigated. Under rapid heating rate, char yield was almost constant at about 15%, between 500 and 900 degrees C, while it was decreased to several % with increased temperature, and char yield was decreased to 3% between 1000 and 1400 degrees C. In slow heating rate, char yield was almost kept at 22-17% between 500 and 1400 degrees C. Concentrations of alkali and alkaline earth metallic (AAEM) species (particularly Na, K, Mg and Ca) in produced char were analyzed using ICP-MS. Contents of Na, K, Mg and Ca in dry biomass basis were 0.10, 0.15, 0.29 and 1.01%, respectively, but when pyrolysis temperature was increased, their contents decreased. Especially in rapid pyrolysis, a significant decrease was seen from 800 to 900 degrees C, and even over 1000 degrees C, gradual decrease was also observed. SEM and SEM-EDX pictures were also given to elucidate the effects on its structure of pyrolysis temperature and heating rate. |
英文关键词 | Arid land afforestation biomass char rapid pyrolysis fluidized bed reactor ash |
来源出版物 | FRESENIUS ENVIRONMENTAL BULLETIN |
ISSN | 1018-4619 |
EISSN | 1610-2304 |
出版年 | 2013 |
卷号 | 22 |
期号 | 7A |
页码 | 2063-2068 |
出版者 | PARLAR SCIENTIFIC PUBLICATIONS (P S P) |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Japan |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000327563300019 |
WOS关键词 | ALKALI RELEASE ; PYROLYSIS ; VOLATILIZATION ; YIELD |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/301965 |
作者单位 | Seikei Univ, Dept Mat & Life Sci, Tokyo 1808633, Japan |
推荐引用方式 GB/T 7714 | Iwasaki, Toshiyuki,Kojima, Toshinori. PROPERTIES OF CHAR OF WOODY BIOMASS FROM AFFORESTATION OF ARID LAND WITH LESS CROP PRODUCTIVITY[C]:PARLAR SCIENTIFIC PUBLICATIONS (P S P),2013:2063-2068. |
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