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首页> 外文期刊>RSC Advances >Continuous hydrogen production from glucose/xylose by an anaerobic sequential batch reactor to maximize the energy recovery efficiency
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Continuous hydrogen production from glucose/xylose by an anaerobic sequential batch reactor to maximize the energy recovery efficiency

机译：通过厌氧顺序批量反应器从葡萄糖/木糖的连续氢气产生，以最大化能量回收效率

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摘要

Fermentation of both glucose and xylose is essential to realize efficient bioconversion of renewable and abundant lignocellulosic biomass to hydrogen. In this study, a mixture of glucose and xylose at different ratios was used as a substrate for biological hydrogen production by an anaerobic sequential batch reactor (ASBR). An average glucose and xylose consumption of 80% and 50% with a high hydrogen production rate of 7.1 +/- 0.9 mmol L-1 h(-1) was obtained, respectively. Hydraulic retention time (HRT) played a critical role in hydrogen production at high glucose to xylose ratios. A maximum hydrogen production rate of 8.9 mmol L-1 h(-1) was achieved at an optimized HRT of 12 h with a high glucose and xylose consumption of 92.2% and 82.2%, respectively. Upon further energy conversion analysis, continuous hydrogen production by ASBR provided the maximum energy conversion efficiency of 21.5%. These results indicate that ASBR can effectively accelerate the hydrogen production rate, improve substrate consumption regardless of the glucose to xylose ratio, and thus provides a new direction for efficient hydrogen production from lignocellulosic feedstock.
机译：葡萄糖和木糖的发酵是必要的，以实现可再生和丰富的木质纤维素生物质对氢气的有效生物转化。在该研究中，使用不同比例的葡萄糖和木糖的混合物用作厌氧顺序批量反应器（ASBR）作为生物氢产生的基材。分别获得了高氢生产率为7.1 +/- 0.9mmol L-1 H（-1）的80％和50％的平均葡萄糖和木糖消耗。液压保留时间（HRT）在高葡萄糖到木糖比下发挥了关键作用。在12小时的优化HRT中实现了8.9mmol L-1 H（-1）的最大氢气产生速率，高葡萄糖和木糖消耗分别为92.2％和82.2％。在进一步的能量转换分析后，ASBR的连续氢气产生提供21.5％的最大能量转换效率。这些结果表明，ASBR可以有效地加速氢气产率，改善底物消耗，无论葡萄糖与木糖比如何提供新的方向，从木质纤维素原料中提供有效的氢生产。

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  • 来源
    《RSC Advances》 |2018年第37期|共7页
  • 作者

    Zhao Lei; Guo Wan-Qian; Guo Xu-Chao; Ren Hong-Yu; Wu Jie-Ting; Cao Guang-Li; Wang Ai-Jie; Ren Nan-Qi;

  • 作者单位

    Harbin Inst Technol Sch Environm State Key Lab Urban Water Resources &

    Environm Harbin 150090 Heilongjiang Peoples R China;

    Harbin Inst Technol Sch Environm State Key Lab Urban Water Resources &

    Environm Harbin 150090 Heilongjiang Peoples R China;

    Harbin Pharmaceut Grp Bioengn Harbin Heilongjiang Peoples R China;

    Harbin Inst Technol Sch Environm State Key Lab Urban Water Resources &

    Environm Harbin 150090 Heilongjiang Peoples R China;

    Liaoning Univ Sch Environm Sci Shenyang 110036 Liaoning Peoples R China;

    Harbin Inst Technol Sch Environm State Key Lab Urban Water Resources &

    Environm Harbin 150090 Heilongjiang Peoples R China;

    Harbin Inst Technol Sch Environm State Key Lab Urban Water Resources &

    Environm Harbin 150090 Heilongjiang Peoples R China;

    Harbin Inst Technol Sch Environm State Key Lab Urban Water Resources &

    Environm Harbin 150090 Heilongjiang Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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