Journal of South China University of Technology (Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (6): 21-26.doi: 10.3969/j.issn.1000-565X.2016.06.004

• Chemistry & Chemical Engineering • Previous Articles     Next Articles

Reduction of Harmful Components in Cigarette Smoke via Delignification of Tobacco Stem by Means of Oxygen Alkali Technology

YI Cong-hua1 ZHANG Su-wen1 JI Wei-ni1 KONG Hao-hui2 ZHOU Rong2   

  1. 1.School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Technology Center,China Tobacco Guangdong Industrial Co.,Ltd.,Guangzhou 510385,Guangdong,China
  • Received:2015-11-25 Revised:2015-12-28 Online:2016-06-25 Published:2016-05-03
  • Contact: 易聪华(1979-)，女，博士，副教授，主要从事工业木质素的资源化利用研究． E-mail:chyi@scut.edu.cn
  • About author:易聪华(1979-)，女，博士，副教授，主要从事工业木质素的资源化利用研究．
  • Supported by:
    Supported by the National Program on Key Basic Research Project of China(2012CB215302)

PDF

419

Abstract: Tobacco stem was delignified by means of the oxygen alkali technology and was then used to produce to- bacco sheets.The variations of harmful components in the cigarette smoke were investigated,and the optimal condi- tions of oxygen alkali technology were determined as follows: a liquid-solid ratio of alkali liquor to tobacco stem of 10mL/g,a mass ratio of potassium hydroxide to tobacco stem of 35%,a reaction temperature of 120℃,a reaction time of 40min,an oxygen pressure of 0. 6MPa and a dosage of protective agent MgCO3 of 0. 5%.It is found that,as compared with the traditional water soaking pretreatment,the pretreatment with oxygen alkaline is more effective because it helps to reduce the contents of lignin,phenol,pyrocatechol and the total harmful substance by 47. 9%,61%,25% and 38%,respectively.

Key words: tobacco stem, oxygen alkali technology, cigarette smoke, delignification

CLC Number: