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| Effect of Cyclic Pulping with Large-liquid-ratio on Sugarcane Bagasse Soda Pulping |
| Received:June 16, 2023 |
| DOI：10.11980/j.issn.0254-508X.2023.08.013 |
| Key Words:bagasse cyclic cooking large-liquid-ratio soda pulping |
| Fund Project:国家自然科学基金项目（2216080053）；中国工程院战略研究与咨询项目（2022-XY-26）。 |
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| Abstract:In this paper， bagasse was used as raw material for pulping by soda cooking， and the effect of alkali consumption in pulping with large-liquid-ratio cycle was investigated， and the impacts of the performance of sugarcane bagasse pulping with large-liquid-ratio cycle were discussed. The results showed that compared with the traditional soda-anthraquinone pulping process， the alkali consumption was slightly higher but in a reasonable range， and the lignin could be removed in depth to obtain a pulp with lower Kappa value （8.9~13.5） and higher viscosity （973~1134 mL/g）， which was beneficial to improve the water filtration performance of the pulp. At the same time， the main distribution of bagasse pulp fibers morphology was the same as that of eucalyptus pulp fibers after pulping with large-liquid-ratio cycle， with an average length of about 1.00 mm and an average width of about 26.0 μm. |
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