COMPARATIVE STUDY OF DELIGNIFICATION EFFICIENCY AND PULP YIELD OF HEART WOOD AND SAP WOOD OF POPULUS DELTOIDS BY KRAFT AND SODA PROCESSES

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GHASEMI SOMAYEH; SARAEIAN A.R.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2010 | Volume:25 | Issue:1 (32) Page(s): 138-146

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Title

COMPARATIVE STUDY OF DELIGNIFICATION EFFICIENCY AND PULP YIELD OF HEART WOOD AND SAP WOOD OF POPULUS DELTOIDS BY KRAFT AND SODA PROCESSES

Author(s)

GHASEMI SOMAYEH | SARAEIAN A.R. | Issue Writer Certificate

Keywords

POPULOUS DELTOIDESQ2

HEART WOODQ3

SAP WOODQ3

PULP YIELDQ3

KRAFT COOKINGQ3

SODA COOKINGQ3

KAPPA NUMBERQ2

Abstract

Comparative study of PULP YIELD of SAP WOOD and HEART WOOD of Populus deltoides under both Kraft and SODA COOKING process have been showed that the HEART WOOD pulp has a lower yield than that of SAP WOOD pulp. Yield of HEART WOOD and SAP WOOD soda pulps was 4 percentages higher than Kraft pulp. Contrary to yield, residual lignin content (Kappa number) is more in HEART WOOD pulp than SAP WOOD pulp in both processes. KAPPA NUMBERs of HEART WOOD and SAP WOOD Kraft pulps were about 34% lower than soda pulps. The results showed that in spite of lower yield of HEART WOOD than SAP WOOD, the residual lignin of HEART WOOD pulp was more than SAP WOOD pulp. The higher delignification efficiency of KRAFT COOKING is related to cooking liquor compositions, especially Na2S.

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APA: Copy

GHASEMI, SOMAYEH, & SARAEIAN, A.R.. (2010). COMPARATIVE STUDY OF DELIGNIFICATION EFFICIENCY AND PULP YIELD OF HEART WOOD AND SAP WOOD OF POPULUS DELTOIDS BY KRAFT AND SODA PROCESSES. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 25(1 (32)), 138-146. SID. https://sid.ir/paper/109718/en

Vancouver: Copy

GHASEMI SOMAYEH, SARAEIAN A.R.. COMPARATIVE STUDY OF DELIGNIFICATION EFFICIENCY AND PULP YIELD OF HEART WOOD AND SAP WOOD OF POPULUS DELTOIDS BY KRAFT AND SODA PROCESSES. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2010;25(1 (32)):138-146. Available from: https://sid.ir/paper/109718/en

IEEE: Copy

SOMAYEH GHASEMI, and A.R. SARAEIAN, “COMPARATIVE STUDY OF DELIGNIFICATION EFFICIENCY AND PULP YIELD OF HEART WOOD AND SAP WOOD OF POPULUS DELTOIDS BY KRAFT AND SODA PROCESSES,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 25, no. 1 (32), pp. 138–146, 2010, [Online]. Available: https://sid.ir/paper/109718/en

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