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<p>In recent years, research and development into new sources of energy has gained attention. In this study, bituminous coal and corn straw were used to prepare hydrogen via microbial conversion to achieve zero-carbon energy production. Coal is a combustible organic biological rock composed of polymer hydrocarbons and traces of inorganic minerals, for which bituminous coal has the largest reserves. Corn stalks, or corn straw, are an agricultural waste and a renewable resource. The results showed that the addition of different amounts of bituminous coal affected hydrogen production during co-fermentation with corn stalk. Hydrogen production via co-fermentation with bituminous coal peaked on the first day of fermentation. The highest level of gas production was achieved by the fermentation group with 5% bituminous coal at 102.4 mL, compared with the fermentation group without bituminous coal, which only achieved 77.4 mL. Gas production in the fermentation group with 5% bituminous coal was 25 mL higher than that of the group without bituminous coal. The pH and humic acid content of the group supplemented with 5% bituminous coal were lower than those of the other fermentation systems, while the benzoic acid, pyruvate, and glucose contents were higher than those achieved by the other groups. The specific surface area of the group without bituminous coal was 1.99765 m<sup>2</sup>/g, total pore volume was 0.008372 m<sup>3</sup>/g, and average pore diameter was 16.05975&#xa0;nm, while the specific surface area of the group with 5% bituminous coal was 1.6375 m<sup>2</sup>/g with an average pore diameter of 16.4875&#xa0;nm. In summary, the fermentation of corn straw with 5% bituminous coal was most conducive to hydrogen production, whereas the addition of further bituminous coal had an inhibitory effect.</p>

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Co-fermentation of Bituminous Coal and Corn Straw for Hydrogen Production

  • 期刊论文

  • 发表日期：

    2025年11月25日

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  • Xin Guo,
  • Xiaobo Xu,
  • Litong Ma,
  • Jun Li,
  • Yanan Yu

摘要

In recent years, research and development into new sources of energy has gained attention. In this study, bituminous coal and corn straw were used to prepare hydrogen via microbial conversion to achieve zero-carbon energy production. Coal is a combustible organic biological rock composed of polymer hydrocarbons and traces of inorganic minerals, for which bituminous coal has the largest reserves. Corn stalks, or corn straw, are an agricultural waste and a renewable resource. The results showed that the addition of different amounts of bituminous coal affected hydrogen production during co-fermentation with corn stalk. Hydrogen production via co-fermentation with bituminous coal peaked on the first day of fermentation. The highest level of gas production was achieved by the fermentation group with 5% bituminous coal at 102.4 mL, compared with the fermentation group without bituminous coal, which only achieved 77.4 mL. Gas production in the fermentation group with 5% bituminous coal was 25 mL higher than that of the group without bituminous coal. The pH and humic acid content of the group supplemented with 5% bituminous coal were lower than those of the other fermentation systems, while the benzoic acid, pyruvate, and glucose contents were higher than those achieved by the other groups. The specific surface area of the group without bituminous coal was 1.99765 m2/g, total pore volume was 0.008372 m3/g, and average pore diameter was 16.05975 nm, while the specific surface area of the group with 5% bituminous coal was 1.6375 m2/g with an average pore diameter of 16.4875 nm. In summary, the fermentation of corn straw with 5% bituminous coal was most conducive to hydrogen production, whereas the addition of further bituminous coal had an inhibitory effect.