Biogasoline production from co-pyrolysis of fresh palm fruit bunches and medical plastic waste for use in spark-ignition engines

IF 6.2 2区化学 Q1 CHEMISTRY, ANALYTICAL

Journal of Analytical and Applied Pyrolysis Pub Date : 2025-08-13 DOI:10.1016/j.jaap.2025.107332

Nathawat Unsomsri , Khanes Chunyok , Watcharapol Pakdee , Phakwan Muncharoenporn , Patchara Koedthong , Sittinun Tawkaew , Songkran Wiriyasart , Sommas Kaewluan

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引用次数: 0

Abstract

This work examines the co-pyrolysis of fresh palm fruit bunches (FFB) together with used medical saline bottles (UMSB) as an environmentally sustainable approach for biogasoline production. Three FFB:UMSB feed ratios (100:0, 75:25, and 50:50) were evaluated in a batch pyrolyzer at 450 °C to assess bio-oil yield, product distribution, and fuel quality. The bio-oil obtained was separated via fractional distillation into biogasoline and diesel-range fractions. GC–MS and FTIR analyses indicated that higher UMSB proportions increased light hydrocarbon levels while decreasing oxygen-containing compounds. The 50:50 blend achieved the highest biogasoline yield (87.7 %) with favorable properties including higher heating value (42.6 MJ/kg), low viscosity (0.88 cSt), and reduced acidity (pH 3.6). Engine tests using a 2 kW spark-ignition generator showed stable combustion, extended runtime (19.6 hr), and comparable electrical efficiency (16.8 %) to commercial gasoline (15.4 %). Emission measurements indicated significant reductions in CO (64 %) and NO_x (7.1 %) for the 50:50 blend. A simplified economic analysis showed cost competitiveness, with a production cost of 0.1 EUR/L and a profit margin of 0.8 EUR/L. The findings highlight co-pyrolysis as a promising circular-economy approach for converting palm biomass and plastic waste into value-added products via decentralized energy generation.

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利用新鲜棕榈果束和医用塑料废物共热解生产生物汽油，用于火花点火发动机

这项工作考察了新鲜棕榈果束（FFB）与医用生理盐水瓶（UMSB）的共热解作为一种环境可持续的生物汽油生产方法。三种FFB:UMSB进料比例（100:0,75:25和50:50）在450°C的间歇热解装置中进行评估，以评估生物油的产量，产品分布和燃料质量。所得的生物油通过分馏分离为生物汽油和柴油馏分。GC-MS和FTIR分析表明，UMSB比例越高，轻烃含量越高，含氧化合物含量越低。50:50的混合物获得了最高的生物汽油收率（87.7 %），具有较高的热值（42.6 MJ/kg），低粘度（0.88 cSt）和降低的酸度（pH 3.6）。使用2 千瓦火花点火发电机进行的发动机测试显示，燃烧稳定，运行时间延长（19.6 小时），电效率（16.8 %）与商用汽油（15.4 %）相当。排放测量表明，50:50的混合物显著降低了CO（64 %）和NOx（7.1 %）。简单的经济分析显示成本竞争力，生产成本为0.1欧元/升，利润率为0.8欧元/升。研究结果强调，共热解是一种很有前途的循环经济方法，可以通过分散的能源生产将棕榈生物质和塑料废物转化为增值产品。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Analytical and Applied Pyrolysis 化学-分析化学

CiteScore

9.10

自引率

11.70%

发文量

340

审稿时长

44 days

期刊介绍： The Journal of Analytical and Applied Pyrolysis (JAAP) is devoted to the publication of papers dealing with innovative applications of pyrolysis processes, the characterization of products related to pyrolysis reactions, and investigations of reaction mechanism. To be considered by JAAP, a manuscript should present significant progress in these topics. The novelty must be satisfactorily argued in the cover letter. A manuscript with a cover letter to the editor not addressing the novelty is likely to be rejected without review.