Arid
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
ISSN1018-4619
EISSN1610-2304
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
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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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