采用有机溶剂预处理桦木屑，在综合生物炼制方法中生产绿色氢气和可再生化学品。
Organosolv pretreated birch sawdust for the production of green hydrogen and renewable chemicals in an integrated biorefinery approach.
机构信息
Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, 971‑87 Luleå, Sweden.
Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, 971‑87 Luleå, Sweden.
出版信息
Bioresour Technol. 2022 Jan;344(Pt A):126164. doi: 10.1016/j.biortech.2021.126164. Epub 2021 Oct 23.
Sustainable production of fuels and chemicals is the most important way to reduce the carbon footprint in the environment. Forest based abundant lignocellulosic biomass as a renewable feedstock can be an attractive source of biofuels and biochemicals. This study evaluated the production of hydrogen (H) along with platform chemicals from an organosol pretreated birch sawdust (SD). Acidogenic fermentation (AF) of pretreated SD resulted in production of green H (121.4 mL/gVS) along with short (17.8 g/L) and medium (2.64 g/L) chain carboxylic acids. Further integration of AF with anaerobic digestion (AD) in a biorefinery framework offered production of biomethane (bioCH: 246 mL/gVS) from the leftover SD from AF. Integration of bioH with bioCH at different time interval of digestion showed 8-14 L biohythane formation ran with a H fraction of 1.6-0.3 H/(H + CH) documenting energy content of 8-9.08 kJ/gVS.
可持续地生产燃料和化学品是减少环境碳足迹的最重要途径。以森林为基础的丰富木质纤维素生物质作为可再生原料，可以成为生物燃料和生物化学物质的有吸引力的来源。本研究评估了从有机溶胶预处理桦木木屑（SD）中生产氢气（H）和平台化学品。预处理 SD 的产酸发酵（AF）导致绿色 H（121.4 mL/gVS）以及短链（17.8 g/L）和中链（2.64 g/L）羧酸的产生。进一步将 AF 与厌氧消化（AD）在生物炼制框架内集成，从 AF 的剩余 SD 中生产生物甲烷（bioCH：246 mL/gVS）。在不同消化时间间隔下将生物 H 与生物 CH 集成，显示出 8-14 L 生物氢烷的形成，H 分数为 1.6-0.3 H/（H+CH），记录了 8-9.08 kJ/gVS 的能量含量。
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