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›› 2011, Vol. 45 ›› Issue (2): 34-36.

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Preparation of Activated Carbon from Oil Camellila Nutshell by Phosphoric Acid Activation Using Microwave Heating

JIANG Ying-ti, CHEN Shun-wei, ZHUANG Xiao-wei, PAN Xin, ZHANG Jiang-li   

  1. Zhejiang Forestry Academy;Zhejiang Provincial Key Laboratory of Biological and Chemical Utilization of Forest Resource, Hangzhou 310023, China
  • Received:2018-12-09 Revised:1900-01-01 Online:2011-03-30 Published:2011-03-30

Abstract: Activated carbon were prepared from oil camellila nutshell, using phosphoric acid as activator and heating with microwave, in order to find out new raw material resource and new heating measure. Effects of four major factors, as phosphoric acid concentration, mixing ratio of raw materials and phosphoric acid, activation temperature and activation time etc., on methylene blue absoption of activated carbon products were investigated, by experimental design using an orthogonal table program including four factors and three levels. Results show that, under the conditions of phosphoric acid mass fraction of 60%, solid to liquid ratio of 1:2.0(m/m), activation temperature of 550 ℃,activation time of 75 min, the activated carbon's methylene blue adsorption reaches up to 226 mg/g, A method caramel decolorization rate does over 100%, ash content of 4.6%-5.2%. it has been proven that liquid phase decoloration activated carbon product could be manufactured from oil camellila nutshell by microwave heating and phosphoric acid activation method.

Key words: oil camellila nutshell, activated carbon, microwave heating, phosphoric acid method

CLC Number: