木质纤维素簕杜鹃催化转化为生物乙醇的新型实验方法

IF 4.8 Q1 MICROBIOLOGY
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引用次数: 0

摘要

簕杜鹃(Bambusa bambos,B.B)生物质是一种富含纤维素的木质纤维素材料,含有 47.49% 的纤维素、17.49% 的半纤维素和 23.56% 的木质素。该研究论文探讨了通过两相催化转化工艺将 B.B 生物质用作生物乙醇生产的基质。确定了四种水调节机制,以优化木质纤维素生物质向生物燃料前体的转化。在无相离子液体(1-丁基-3-甲基氯化咪唑)介质中,使用 CuCl2 在 110˚C 温度下对 B.B 进行了 10 小时的催化水解。在改变加水量的同时,测量了葡萄糖和 5-羟甲基糠醛(5-HMF)的浓度。水在纤维素转化为葡萄糖和 5-HMF 的过程中起着至关重要的作用,它通过热传导和粘度等传输特性的相互作用来影响产物产量。在 110˚C 下以 115.72 µL 水/小时的含水率运行 6 小时,葡萄糖产量最高,达到 60.82%。另一方面,在 110˚C 温度下,以 77.15 µL 水/小时的含水率运行 5 小时,观察到最高的 HMF 产量为 5.84%。在酵母介导的葡萄糖发酵过程中,利用 15 毫克/毫升的葡萄糖催化产生的生物乙醇浓度为 5.5 毫克/毫升,温度为 30 摄氏度。催化水解后,离子液体也得到有效回收,实现了可持续经济。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A novel experimental approach for the catalytic conversion of lignocellulosic Bambusa bambos to bioethanol

A novel experimental approach for the catalytic conversion of lignocellulosic Bambusa bambos to bioethanol

Bambusa bambos (B.B) biomass is cellulose rich lignocellulosic material, containing 47.49% cellulose, 17.49% hemicellulose, 23.56% lignin was used as a potential substrate for bioethanol production. The research paper investigates the use of B.B biomass as a substrate for bio-ethanol production through a two-phase catalytic conversion process. Four water-regulated regimes were identified to optimize the conversion of lignocellulosic biomass to biofuel precursors. The catalytic hydrolysis of B.B using CuCl2 was conducted for 10 hours at 110˚C, in aprotic ionic liquid (1-Butyl-3-methylimidazolium chloride) medium. The concentrations of glucose and 5-hydroxymethylfurfural (5-HMF) were measured while varying the amount of water addition. Water played a crucial role in the conversion of cellulose to glucose and 5-HMF by influencing product yields through the interplay of transport properties like heat conduction and viscosity. The highest glucose yield was achieved at 60.82% when operating at a water inclusion rate of 115.72 µL water/h for a duration of 6 hours at 110˚C. On the other hand, the maximum HMF yield was observed as 5.84% at water inclusion rate of 77.15 µL water/h for 5 hours at 110˚C. Yeast mediated glucose fermentation resulted in a bioethanol concentration of 5.5 mg/mL utilizing 15 mg/mL of catalytically produced glucose at a temperature of 30°C. After catalytic hydrolysis, the ionic liquid was also efficiently recycled for a sustainable economy.

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来源期刊
Current Research in Microbial Sciences
Current Research in Microbial Sciences Immunology and Microbiology-Immunology and Microbiology (miscellaneous)
CiteScore
7.90
自引率
0.00%
发文量
81
审稿时长
66 days
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