The Beatability of Wheat Straw Soda and Monoethanolamine Pulps

Document Type : Research Paper

Authors

1 Assistant Professor, Wood and paper science and technology, College of Natural Resources, University of Mohaghegh Ardabili Iran

2 Associate Professor, Faculty of Natural Resources, University of Tehran

3 Professor, Wood Chemistry and Chemical Technology of Wood Division, University of Hamburg

4 Professor, Institute for Wood and Paper Research, Johan Heinrich von Thuenen Center (vTI),Hamburg

5 Assistance Professor, Faculty of Wood and Paper Engineering, Gorgan University of Agriculture and Natural Resources

Abstract

In this study the beatability of soda and monoethanolamine pulps was compared. The refining of pulps was done in pilot scale Voith refiner Model LR 40. The results show that the maximum tensile and burst indices of monothanolamine pulp are reached with consumption of 70 kWh energy in pilot scale Voith refiner and the increasing of energy more than this level has the adverse effect on these indices. In the case of soda pulp increasing the energy up to 500 kWh has the linear relationship with tensile and burst indices. In comparison to monoethanolamine pulp, the refining of soda pulp is more difficult and needs more energy. Using monoethanolamine pulp resulted in saving of energy by 70-80 % to reach the optimum strength indices.

Keywords

References

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Iranian Journal of Wood and Paper Industries
Volume 7, Issue 2 - Serial Number 2
September 2016
Pages 155-166

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