Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (9): 1-7.

• Chemistry & Chemical Engineering •     Next Articles

Pyrolysis Characteristics of Eucalyptus APMP Spent Liquor Solids

Wu Shu-bin1,2  Zhao Yu-shuang1  Guo Da-liang1   Li Bo1  Yin Xiu-li2   

  1. 1. State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 2. CAS Key Laboratory of Renewable Energy and Gas Hydrate,Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640, Guangdong,China
  • Received:2012-04-10 Revised:2012-05-23 Online:2012-09-25 Published:2012-08-01
  • Contact: 武书彬(1965-) ，男，教授，博士生导师，主要从事生物质能源、生物质基化学品、纤维回用过程油墨与胶粘物的去除及控制技术等的研究． E-mail:shubinwu@ scut.edu.cn
  • About author:武书彬(1965-) ，男，教授，博士生导师，主要从事生物质能源、生物质基化学品、纤维回用过程油墨与胶粘物的去除及控制技术等的研究．
  • Supported by:

    国家自然科学基金资助项目( 21176095， 51176195) ; 教育部科技支撑计划项目( 2012AA101806) ; 广东省科技计划项目( 2011A090200006)

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Abstract:

The APMP ( Alkaline Peroxide Mechanical Pulp) spent liquor solid ( ASLS) of Eucalyptus was prepared and pyrolyzed,and the release mechanism of main volatile products during the pyrolysis was investigated by means of TG-FTIR. Then,the volatile components are confirmed by combining a fast pyrolysis in a high-temperature static horizontal tube furnace with GC and GC-MS. TG-FTIR analysis shows that the pyrolysis of ASLS consists of three stages,respectively at temperatures of 200 ～ 371 ℃,371 ～ 530℃,745 ～ 986 ℃,and the correspon-ding main products are CO2 with a content of more than 90% at the first pyrolysis stage,CO2,CH4,aldehydes and ketones,phenols and alcohols at the second pyrolysis stage and CO at the third pyrolysis stage. GC results indicate that H2,CH4,CO,CO2,C2H4 and C2H6 are the main non-condensible products. GC-MS results reveal that aldehydes and ketones as well as phenols are the main condensible products,which accords well with the TG-FTIR results,and that the maximum yield of aldehydes and ketones is up to 41. 43% at about 600℃.

Key words: Eucalyptus, alkaline peroxide mechanical pulp, spent liquor, pyrolysis, TG-FTIR, GC-MS

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