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<p>This study provides a comprehensive review of the characteristics of biomass oil generated through the rapid pyrolysis of coconut outer shell (COS) utilizing an Auger-type reactor unit (ATR). The explanation of this technology highlights the reactor’s design, feedstock properties, the formation of bio-oil, and the refining process. The COS biomass oil is produced through pyrolysis at 650&#xa0;°C using biomass particles sized 1–3&#xa0;cm, powered by a 1 HP, 3-phase induction motor operating at 1410&#xa0;rpm, and subsequently characterized through elemental analysis. The ATR achieved a conversion efficiency of 65% for bio-oil, 20% for syngas, and the remainder as biochar. The biomass was analyzed using a thermogravimetric analyzer (TGA) to understand its thermal behavior and assess its chemical composition. A 35% bio-oil blend outperformed standard diesel fuel in a multi-fuel variable compression ratio (VCR) engine when running at full load conditions. This paper also presents the emission analysis, indicated brake thermal efficiency (BTE), mean effective pressure (MEP), and specific fuel consumption (SFC) of the multi-fuel VCR engine fueled with the blended bio-oil.</p>

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Assessing the performance and characteristics of biomass oil by fast pyrolysis of coconut outer shell and its blends

  • 期刊论文

  • 发表日期：

    2025年2月21日

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  • Radhakrishnan Chandran,
  • Rajendran Irusa Gounder

摘要

This study provides a comprehensive review of the characteristics of biomass oil generated through the rapid pyrolysis of coconut outer shell (COS) utilizing an Auger-type reactor unit (ATR). The explanation of this technology highlights the reactor’s design, feedstock properties, the formation of bio-oil, and the refining process. The COS biomass oil is produced through pyrolysis at 650 °C using biomass particles sized 1–3 cm, powered by a 1 HP, 3-phase induction motor operating at 1410 rpm, and subsequently characterized through elemental analysis. The ATR achieved a conversion efficiency of 65% for bio-oil, 20% for syngas, and the remainder as biochar. The biomass was analyzed using a thermogravimetric analyzer (TGA) to understand its thermal behavior and assess its chemical composition. A 35% bio-oil blend outperformed standard diesel fuel in a multi-fuel variable compression ratio (VCR) engine when running at full load conditions. This paper also presents the emission analysis, indicated brake thermal efficiency (BTE), mean effective pressure (MEP), and specific fuel consumption (SFC) of the multi-fuel VCR engine fueled with the blended bio-oil.