价值化每一个碳原子:从玉米炉中获得的纤维素酸中获得先进的生物燃料的级联生物工艺
Tianjie Ao1,2, Yiping Luo1, Javier Remón3
1Agricultural Microbial Agents Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan 610213, PR China.
Environmental science & technology
|December 17, 2025
概括
本研究介绍了一种集成的生物炼油工艺,该工艺可以提高从玉米炉中生产乙醇的碳效率. 这种新的系统捕获和再利用二氧化碳,增加了可持续生物燃料生产的总体碳利用率.
科学领域:
- 生物质转化和生物能源
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 传统的纤维素生物提炼在乙醇发酵过程中损失了大量的碳 (CO2),降低了整体效率.
- 玉米炉 (CS) 是一个有前途的原料,但其高效转化为生物燃料仍然是一个挑战.
- 现有的工艺往往无法利用所有碳流,导致浪费和降低经济可行性.
研究的目的:
- 开发和验证一个整体的综合级联生物炼制工艺,以提高从纤维纤维素生物质的碳利用率.
- 为了配对乙醇发酵,无氧消化和蓝藻菌种植,以实现全面的碳流价值化.
- 评估工业规模的综合工艺的技术经济可行性.
主要方法:
- 工程酵母 (Saccharomyces cerevisiae CE10) 用于高生产率的乙醇发酵.
- 静止物体的无氧消化产生甲和富含营养的消化物.
- 使用捕获的二氧化碳和消化剂培养蓝菌 (Desertifilum tharense BERC03).
- 一个2000t/d工业规模设施的技术经济分析.
主要成果:
- 实现了高的乙醇发酵生产率 (1.68 g/L/h).
- 有效地将残留有机物转化为甲 (171 L/kg COD) 通过无氧消化消除80%的COD.
- 提高了整体碳利用率,从48%提高到62%.
- 预计工业规模设施的最低乙醇销售价 (MESP) 为2.44美元/加.
结论:
- 综合级联生物炼油厂模型显著提高了碳回收和利用基纤维素生物质的碳.
- 该过程证明了多种生物燃料的共同生产的可行途径,包括乙醇和甲.
- 原料和纤维素成本被确定为主要的经济驱动因素,这表明了未来优化领域.
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