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Paper Information

Journal:   IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH   2010 , Volume 25 , Number 2 (33); Page(s) 302 To 308.
 
Paper: 

LIGNIN DISSOLUTION AT PULPING PROCESS OF WHEAT STRAW

 
 
Author(s):  ROUSHENASAN J.*, DEHGHANI FIROUZABADI M., DAHMARDE GHALEH NO M., SHARIFI S.
 
* GORGAN UNIVERSITY OF AGRICULTURAL SCIENCE AND NATURAL RESOURCE
 
Abstract: 

The lignin dissolution in Kraft pulping for wheat straw was studied. Kraft pulping was carried out under the conditions: chemical charge of 18% (as NaOH, based on o.d. bagasse), sulfidity of 25% and liquor to wheat straw ratio of 10:1. Six cooking maximum temperatures of 85, 100, 110, 120, 130 and 150oC, were selected and reaction time varied from 0 to 250 min., based on maximum temperature. The Klason lignin, acid soluble lignin, ash and extractive contents of wheat straw were 18.4%, 2.07%, 3.24% and 4.56% respectively. During alkaline pulping of wheat straw, 64% and 52% of lignin was removed before reaching to the temperature 100oC and 85 respectively. The values for pulp and carbohydrates yield were, about 64%, 58% for 85oC and 61%, 57% for 100oC.

 
Keyword(s): WHEAT STRAW, KLASON LIGNIN, ACID SOLUBLE LIGNIN, DELIGNIFICATION AND KRAFT
 
 
References: 
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Cite:
APA: Copy

ROUSHENASAN, J., & DEHGHANI FIROUZABADI, M., & DAHMARDE GHALEH NO, M., & SHARIFI, S. (2010). LIGNIN DISSOLUTION AT PULPING PROCESS OF WHEAT STRAW. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 25(2 (33)), 302-308. https://www.sid.ir/en/journal/ViewPaper.aspx?id=253713



Vancouver: Copy

ROUSHENASAN J., DEHGHANI FIROUZABADI M., DAHMARDE GHALEH NO M., SHARIFI S.. LIGNIN DISSOLUTION AT PULPING PROCESS OF WHEAT STRAW. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH. 2010 [cited 2021April18];25(2 (33)):302-308. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=253713



IEEE: Copy

ROUSHENASAN, J., DEHGHANI FIROUZABADI, M., DAHMARDE GHALEH NO, M., SHARIFI, S., 2010. LIGNIN DISSOLUTION AT PULPING PROCESS OF WHEAT STRAW. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, [online] 25(2 (33)), pp.302-308. Available at: <https://www.sid.ir/en/journal/ViewPaper.aspx?id=253713>.



 
 
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