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<p>The pyrolysis process increases the economic value of sago dreg (SD) by producing bio-oil and bio-char as additional materials for briquettes. It encourages converting SD biomass waste into bio-coke as an alternative solid fuel. This study examines the effect of pyrolysis temperature on the decomposition of SD and its properties as a material for forming hybrid bio-coke (HBC) as an alternative energy source. The pyrolysis temperature varies between 400 and 600&#xa0;°C. HBC is made at a temperature of 120&#xa0;°C with a mixture of bio-char and bio-oil with a weight composition of 10, 20, and 30&#xa0;wt% bio-oil. The results showed that the calorific value of HBC was higher, ranging from 6800 to 7190&#xa0;kcal/kg, exceeding the calorific value of bio-char (&lt;5800&#xa0;kcal/kg). Adding bio-oil to bio-char led to a marked increase in calorific value, enhancing its energy content. Overall, HBC demonstrated superior combustion characteristics and energy content compared to bio-char, suggesting its potential for use as an efficient alternative energy source.</p>

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Upgrading bio-oil and bio-char from sago dregs pyrolysis with liquid–solid diffusion blending method to produce high-calorie hybrid bio-coke

  • 期刊论文

  • 发表日期：

    2025年5月24日

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  • M. Jahiding,
  • Mashuni Mashuni,
  • Erzam S. Hasan,
  • Fitri Handayani Hamid

摘要

The pyrolysis process increases the economic value of sago dreg (SD) by producing bio-oil and bio-char as additional materials for briquettes. It encourages converting SD biomass waste into bio-coke as an alternative solid fuel. This study examines the effect of pyrolysis temperature on the decomposition of SD and its properties as a material for forming hybrid bio-coke (HBC) as an alternative energy source. The pyrolysis temperature varies between 400 and 600 °C. HBC is made at a temperature of 120 °C with a mixture of bio-char and bio-oil with a weight composition of 10, 20, and 30 wt% bio-oil. The results showed that the calorific value of HBC was higher, ranging from 6800 to 7190 kcal/kg, exceeding the calorific value of bio-char (<5800 kcal/kg). Adding bio-oil to bio-char led to a marked increase in calorific value, enhancing its energy content. Overall, HBC demonstrated superior combustion characteristics and energy content compared to bio-char, suggesting its potential for use as an efficient alternative energy source.