期刊
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷 107, 期 -, 页码 284-288出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2014.03.013
关键词
Pulping; Py-GC-MS; Lignin structure; Eucalyptus grandis
资金
- Agencia Nacional de Investigacion e Innovacion (ANII) proyects [PR_FSE_2009_47, PR_FSE_2009_6]
- Programa de Desarrollo de las Ciencias Basicas (PEDECIBA) Quimica
The syringyl/guaiacyl (S/G) ratio of Eucalyputs grandis lignin was determined and its relation with kraft pulping parameters was studied. Twenty one wood samples obtained from 10-year-old trees grown in the same place were analyzed using Py-GC-MS to determine the syringyl/guaiacyl (S/G) ratio. The samples were pulped to the same final lignin content (Kappa number 18) obtaining pulp yields between 48.8% and 54.3%. Relationships were observed between pulp yield and S/G ratio (r = 0.51) also between alkali charge used in pulping and S/G ratio (r = -0.60). (C) 2014 Elsevier B.V. All rights reserved.
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