赵卫东,张卫军,王柏林,樊永胜,王军锋.等离子体酸制备与催化纤维素水解同步/分步技术的对比研究[J].中国造纸学报,2025,(2):34-42 |
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等离子体酸制备与催化纤维素水解同步/分步技术的对比研究 |
Comparative Study of Plasma Acid Preparation and Catalytic Cellulose Hydrolysis Synchronous/Stepwise Technology |
投稿时间:2024-10-07 修订日期:2024-11-11 |
DOI:10.11981/j.issn.1000-6842.2025.02.34 |
中文关键词: 等离子体酸 纤维素 水解 电场强化 反应机理 |
Key Words:plasma acid cellulose hydrolysis electric field enhancement reaction mechanism |
基金项目:江苏省国际合作项目(BZ2022016);常州国际合作项目(CZ2022004)。 |
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中文摘要: |
为实现纤维素的清洁、高效水解,提出了等离子体酸制备与催化纤维素水解的制酸-水解同步技术方案,并考量工作电压、放电气隙及反应时间等操作参数对纤维素水解的影响,并对制酸-水解同步/分步2种技术方案进行对比研究;此外,对电场及放电等离子体强化酸催化纤维素水解的反应机理进行解析。结果表明,反应时间为60 min时,制酸-水解同步方案较分步方案,纤维素转化率增加了10.5个百分点,纤维素平均转化速度提升了约32.7%,平均比能耗降低了约83.3%。与草酸催化纤维素水解方案相比,制酸-水解同步技术方案的葡萄糖得率提升了约20.3%。 |
Abstract: |
To achieve clean and efficient cellulose hydrolysis, a plasma-acid-catalyzed cellulose hydrolysis technical solution with simultaneous acid production and cellulose hydrolysis was proposed. The effects of parameters such as working voltage, discharge gap, and reaction time on cellulose hydrolysis were examined. Furthermore, a comparative study of two technological solutions, simultaneous and stepwise acid production-cellulose hydrolysis was also carried out. Additionally, the reaction mechanism of acid-catalyzed hydrolysis of cellulose enhanced by electric field and discharge plasma was elucidated. The results indicated that when the reaction time was 60 min, the simultaneous acid production-cellulose hydrolysis scheme increased the cellulose conversion rate by 10.5 percent points compared to the stepwise scheme, increased the average cellulose conversion speed by approximately 32.7%, and reduced the average specific energy consumption by about 83.3%. Compared with the oxalic-acid-catalyzed cellulose hydrolysis scheme, the glucose yield of the simultaneous technical scheme increased by approximately 20.3%. |
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