Distillation study of light bio-oil from palm fresh fruit pyrolysis for enhanced bio-gasoline characteristics through blending with gasohol E85

IF 8 Q1 ENERGY & FUELS

Energy nexus Pub Date : 2025-04-23 DOI:10.1016/j.nexus.2025.100432

Sittinun Tawkaew , Nathawat Unsomsri , Pichai Asadamongkon , Surachai Narrat Jansri , Songkran Wiriyasart , Sommas Kaewluan

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引用次数: 0

Abstract

The increasing demand for renewable energy sources highlights the importance of pyrolysis as a sustainable method for converting biomass into valuable products. In this study, palm fresh fruit was pyrolyzed in a 120 L batch-type reactor at 450, 550, 650, and 700 °C at a heating rate of 2–5 °C/min. The production of pyrolysis liquid product (PLP) yie ld is 57.50 %, 62.88 %, 52.53 %, and 47.77 %, respectively. The pyrolysis at 550 °C shows a 62.88 % yield of PLP, 10.27 % biochar, and 26.85 % pyrolysis gases. As the pyrolysis temperature increased, the gas yield slightly increased, whereas the biochar yield decreased. The PLP was distilled at 200 °C to separate into light bio-oil (LBO), wood vinegar (WV), and heavy bio-oil (HBO), yielding 11.91 % LBO, 41.60 % WV, and 46.45 % HBO. The GC–MS of LBO showed that the five components with the highest peak intensities were 1-octene, octane, 1-nonene, nonane, and 1-decene, with respective area percentages of 14.31 %, 8.3 9 %, 18.26 %, 8.01 %, and 8.05 %. The ratios of the blended LBO with gasohol E85 were 70:30, 60:40, and 50:50. The properties of the blended LBO were determined using TGA and a standard test method for distillation. Blending LBO with gasohol E85 in a 60:40 ratio produced fuel that met the gasoline standards for distillation volume fractions. The resulting fuel exhibited a heating value of 36 MJ/kg, which was 35 % higher than that of gasohol E85, highlighting the potential of LBO as a high-quality biofuel and its contribution to renewable energy development.

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棕榈鲜果热解轻质生物油与汽油醇E85调合以提高生物汽油特性的蒸馏研究

对可再生能源日益增长的需求凸显了热解作为一种将生物质转化为有价值产品的可持续方法的重要性。在本研究中，棕榈鲜果在120 L间歇式反应器中，在450、550、650和700°C下，加热速率为2-5°C/min进行热解。热解液产物（PLP）产率分别为57.50%、62.88%、52.53%和47.77%。在550℃下热解，PLP产率为62.88%，生物炭产率为10.27%，热解气体产率为26.85%。随着热解温度的升高，气体产率略有升高，而生物炭产率下降。将PLP在200℃下蒸馏分离为轻质生物油（LBO）、木醋（WV）和重质生物油（HBO），得到LBO为11.91%、WV为41.60%和HBO为46.45%。LBO的GC-MS分析结果表明，1-辛烯、辛烷、1-壬烯、壬烷和1-癸烯5种成分的峰强度最高，其面积百分比分别为14.31%、8.9%、18.26%、8.01%和8.05%。LBO与汽油乙醇E85的混合比例分别为70:30、60:40和50:50。采用热重法和标准蒸馏法测定了混合后的LBO的性能。将LBO与汽油乙醇E85以60:40的比例混合，得到的燃料符合汽油蒸馏体积分数的标准。所得燃料的热值为36 MJ/kg，比汽油乙醇E85高35%，突出了LBO作为高质量生物燃料的潜力及其对可再生能源发展的贡献。

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来源期刊

Energy nexus Energy (General), Ecological Modelling, Renewable Energy, Sustainability and the Environment, Water Science and Technology, Agricultural and Biological Sciences (General)

CiteScore

7.70

自引率

0.00%

发文量

审稿时长

109 days