Scholarlink

<p>Torrefaction or mild pyrolysis of woody biomass is a promising pretreatment step for pyrolysis or gasification. In the present study, torrefaction of hybrid poplar was carried out at the following process conditions: 190–300&#xa0;°C temperature; 5–15&#xa0;°C/min heating rate, and 10–60&#xa0;min retention time. Hybrid poplar is a fast-growing woody biomass that is widely available and can conveniently be exploited to produce valuable biofuels. The objective was to optimize energy yield, elemental oxygen, and elemental carbon, considering the importance of deoxygenation and carbon densification. A response surface methodology was adopted to optimize and conduct further analysis. The optimized parameters were obtained at 274.89&#xa0;°C temperature, 11.61&#xa0;°C/min heating rate, and 10&#xa0;min retention time. From this study, the deoxygenation and carbon densification were obtained to be 29.44 and 31.59%, respectively. The higher heating value of raw biomass increased by 29.38% due to torrefaction. The productions of CO and CO₂ were 69.55 and 30.44 vol%, respectively, for the optimized hybrid poplar.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Torrefaction of hybrid poplar: deoxygenation, carbon densification, and process optimization through response surface methodology

  • 期刊论文

  • 发表日期：

    2025年9月12日

查看全文
  • Devesh Kumar Shrivastava,
  • Jyoti Prasad Chakraborty

摘要

Torrefaction or mild pyrolysis of woody biomass is a promising pretreatment step for pyrolysis or gasification. In the present study, torrefaction of hybrid poplar was carried out at the following process conditions: 190–300 °C temperature; 5–15 °C/min heating rate, and 10–60 min retention time. Hybrid poplar is a fast-growing woody biomass that is widely available and can conveniently be exploited to produce valuable biofuels. The objective was to optimize energy yield, elemental oxygen, and elemental carbon, considering the importance of deoxygenation and carbon densification. A response surface methodology was adopted to optimize and conduct further analysis. The optimized parameters were obtained at 274.89 °C temperature, 11.61 °C/min heating rate, and 10 min retention time. From this study, the deoxygenation and carbon densification were obtained to be 29.44 and 31.59%, respectively. The higher heating value of raw biomass increased by 29.38% due to torrefaction. The productions of CO and CO₂ were 69.55 and 30.44 vol%, respectively, for the optimized hybrid poplar.