Recently, there has been a growing interest in biomass briquette production. While this has been encouraged through the advocacy for reducing, reusing, recycling, and recovering waste as part of measures for attaining a sustainable green future and mitigating climate change, it is on the other hand a result of the energy deficit in most parts of developing countries. Despite this advancement, the processing of rice husk briquette using the low-pressured technique has been quite slow and a bit challenging due to the recalcitrant nature of rice husk resulting from its large grade sizes, low density, high silica content, and ash content. This paper combines recent literature on the strategies for improving the quality of rice husk briquettes produced through low-pressure densification to establish the current state of knowledge. These include pretreatment measures such as milling, carbonization, and torrefaction intended to improve the physical and thermal properties of the biomass and briquettes. In addition, co-densification with other biomass or the use of blends to enhance bonding and curtail ash content, and by increasing the application pressure and temperature of the machines are additional quality enhancement methods reported in this review. These measures enhance the compression process and yield dimensionally stable, durable, and thermally efficient briquettes. The paper also reports the potential of applying the measures mentioned above to other biomasses intended for low-pressured densification. Having looked at the reviewed strategies, the paper assessed the impact of some of the methods on the quality of briquette.

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

Strategies for Improving the Quality of Low-Pressured Rice Husk Briquette: A Mini-Review

  • S. U. Yunusa,
  • E. Mensah,
  • S. Narra,
  • A. Saleh,
  • K. Preko

摘要

Recently, there has been a growing interest in biomass briquette production. While this has been encouraged through the advocacy for reducing, reusing, recycling, and recovering waste as part of measures for attaining a sustainable green future and mitigating climate change, it is on the other hand a result of the energy deficit in most parts of developing countries. Despite this advancement, the processing of rice husk briquette using the low-pressured technique has been quite slow and a bit challenging due to the recalcitrant nature of rice husk resulting from its large grade sizes, low density, high silica content, and ash content. This paper combines recent literature on the strategies for improving the quality of rice husk briquettes produced through low-pressure densification to establish the current state of knowledge. These include pretreatment measures such as milling, carbonization, and torrefaction intended to improve the physical and thermal properties of the biomass and briquettes. In addition, co-densification with other biomass or the use of blends to enhance bonding and curtail ash content, and by increasing the application pressure and temperature of the machines are additional quality enhancement methods reported in this review. These measures enhance the compression process and yield dimensionally stable, durable, and thermally efficient briquettes. The paper also reports the potential of applying the measures mentioned above to other biomasses intended for low-pressured densification. Having looked at the reviewed strategies, the paper assessed the impact of some of the methods on the quality of briquette.