Welcome to Biomass Chemical Engineering,

›› 2010, Vol. 44 ›› Issue (1): 9-13.

• 论文 • Previous Articles     Next Articles

Study on Self-ignition Character and Influence Factors of Woody Activated Carbon

SUN Kang1,2, JIANG Jian-chun1, DAI Wei-di1,2, ZHANG Yan-ping1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. on Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;2. Institute of New Technology of Forestry, CAF, Beijing 100091, China
  • Received:2009-09-27 Revised:1900-01-01 Online:2010-01-30 Published:2010-01-30

Abstract: The influence factors on the self-ignition properties of six kinds of woody powdered activated carbon were studied. The critical self-ignition temperature (CIT) of activated carbon is related to manufacture processes and equipments. Studies have shown that volatile, oxygen, hydrogen and surface oxygen-containing functional groups are main factors that affect the CIT of activated carbon. Activated carbon manufactured by phosphoric acid has the lowest CIT (180℃), but the activated carbon manufactured by steam has the highest CIT since its activation temperature is high as 1000℃ and it has no self-ignition property. In addition, powdered activated carbon manufactured by flat furnace has higher CIT than that manufactured by rotary furnace.

Key words: activated carbon, self-ignition, element composition, volatilite, surface functional group

CLC Number: