芦苇NACO法制浆工艺的研究

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中图分类号：TS74 文献标识码：A DOI：10. 11980/j. issn. 0254-508X. 2025. 05. 010

作者简介：，在读硕士研究生；研究方向：制浆造纸绿色化学技术与生物基功能材料制备。

Study on NACO Pulping Process of Reed

LI Jinze ZHANG Kai* GAN Peng XU Qixi LIU Kefeng YANG Guihua ZHAO Yu CHEN Jiachuan*（State Key Lab of Green Papermaking and Resource Recycling，Key Lab of Pulp and Paper Science & Technology of Ministry of Education，Qilu University of Technology（Shandong Academy of Sciences），Ji’nan，Shandong Province，250353）（ E-mail：zhangkai2018@qlu. edu. cn；chenjc@qlu. edu. cn）

Abstract：This study used reed as the raw material and systematically investigated the dissolution patterns of its chemical components during the NACO pulping process. The results showed that the optimal pulp performance was achieved under the following conditions：alkali dosage （calculated as Na2O）of 18% ，sodium carbonate mass ration of 90 % ，cooking temperature of 140°C ，holding time of 2h ，and initial oxygen pressure of 1. 4 MPa. Under these conditions，the fine pulp yield was 44.9% ，the brightness reached 31.5% ，and the Kappa value was 24. 5. The paper exhibited excellent physical properties，with tensile index of 54.0N⋅m/g ，tear index of 4. 48 mN·m²/g，burst index of 3.30kPa⋅m2/g ，and ring crush index of 6. 53 N·m/g，all surpassing the performance of paper produced via the conventional oxy-alkali pulp‐ ing process. The pulping mechanism of the NACO method could be summarized as follows：during the NACO pulping process，the interac‐ tion between the alkaline environment and oxygen promoted the generation of superoxide anion radicals（ 02-⋅ ）and hydroxyl radicals（HO·）， which worked synergistically to facilitate the removal of lignin.

Key words：reed；NACO method；pulping；pulp performance

制浆造纸工业是关乎国计民生的重要国民经济产业。（剩余13594字）