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<p>One of the solutions to the global warming risk and other climate issues is to concentrate on research and development of utilizing biomass as a fossil fuel alternative. The current estimate of cotton residue waste in the world is about 50 million tons. This massive volume of biomass waste should be turned into clean energy to avert burning the stalks in open fields after cotton&#xa0;harvesting. Therefore, harmful emissions such as CO<sub>2</sub> will be reduced. This study aims to investigate the published literature to comprehend the bioenergy production from the thermal treatment of cotton stalks, including combustion, pyrolysis, carbonization, torrefaction, liquefaction, and gasification. Furthermore, the future outlook, utilization, and prospective challenges of agricultural biomass for biofuel production are discussed. According to the literature, biochar and bio-oil derived from cotton stalks&#xa0;have high heating values of about 27.5 and 37.2 MJ·kg<sup>–</sup><sup>1</sup>, respectively. These values are double those of&#xa0;cotton stalk raw materials, which make it a good candidate for bioenergy production. This article offers valuable insight into cotton stalk utilization via thermochemical treatment and provides a solid reference for researchers, policymakers, and other stakeholders in this field.</p>

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Bio-energy potential of cotton stalks via thermal technologies: a review

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年10月13日

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  • Elshareef Hussien,
  • Yu Yaohong,
  • Fu Yongkun,
  • Ren Sihao,
  • Tursunov Obid,
  • Li Yu,
  • Dong Renjie,
  • Zhou Yuguang

摘要

One of the solutions to the global warming risk and other climate issues is to concentrate on research and development of utilizing biomass as a fossil fuel alternative. The current estimate of cotton residue waste in the world is about 50 million tons. This massive volume of biomass waste should be turned into clean energy to avert burning the stalks in open fields after cotton harvesting. Therefore, harmful emissions such as CO2 will be reduced. This study aims to investigate the published literature to comprehend the bioenergy production from the thermal treatment of cotton stalks, including combustion, pyrolysis, carbonization, torrefaction, liquefaction, and gasification. Furthermore, the future outlook, utilization, and prospective challenges of agricultural biomass for biofuel production are discussed. According to the literature, biochar and bio-oil derived from cotton stalks have high heating values of about 27.5 and 37.2 MJ·kg–1, respectively. These values are double those of cotton stalk raw materials, which make it a good candidate for bioenergy production. This article offers valuable insight into cotton stalk utilization via thermochemical treatment and provides a solid reference for researchers, policymakers, and other stakeholders in this field.