Processing of Rice Straw by Continuous Steaming and Atmospheric-Pressure Boiling-Water Extraction-A Novel Approach
文献类型： 外文期刊
作者： Yang, Yonglei 1 ; Huang, Guinan 1 ; Guo, Ting 2 ; Zhang, Shuping 1 ; Zhang, Houlei 1 ; Liu, Xinzhi 1 ; Li, Sha 1 ;
作者机构： 1.Nanjing Univ Sci & Technol, Sch Energy & Power Engn, Nanjing 210094, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Anim Sci, Nanjing 210014, Peoples R China
期刊名称：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH （ 影响因子：3.9； 五年影响因子：4.0 ）
ISSN： 0888-5885
年卷期： 2025 年 64 卷 5 期
页码：
收录情况： SCI
摘要： The agricultural herbaceous biomass has high ash and potassium/chlorine contents. The present study proposes a novel mild hydrothermal treatment method to convert herbaceous biomass into solid biofuel with reduced ash, potassium, and chlorine contents, as well as liquid fermentable sugars. This two-step process involves continuous steaming under mild saturated steam followed by extraction using boiling water at atmospheric pressure. Experimental results indicate that continuous steaming of rice straw in saturated steam at temperatures between 150 and 210 degrees C leads to significant softening and pore-opening effects on the biomass cell structure. Consequently, subsequent atmospheric-pressure boiling-water extraction achieves high removal rates of potassium (56.9-77.4%), chlorine (82.2-97.0%), and sulfur (81.3-87.5%). Successful cultivation of Aspergillus oryzae was achieved using the liquid products obtained from the steaming at temperatures of 150 and 180 degrees C, resulting in fermented residues with high total protease activity.
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