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Characterization of empty fruit bunch for microwave-assisted pyrolysis

机译：微波辅助热解空果束的表征

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摘要

Agricultural waste such as oil palm empty fruit bunch (EFB) is of environmental concern to Malaysia as one of the world's largest oil palm producers. Pyrolysis can be used to treat biomass waste due to its flex ibility in producing solid, liquid and gas products. This study attempts to characterize EFB for pyrolysis using microwaves as an alternative heating source. EFB taken from a local oil palm mill was subjected to fuel, chemical and dielectric property analysis. The findings revealed that high moisture and 47% oxy gen gave low calorific value of 16 MJ/kg. Notably, high water content is an advantage in microwave heat ing as water is a good microwave absorber, which results in fast drying. Further, a high volatile content at 70% gave the EFB an advantage of high reactivity. A moderate potassium content of 12.8% could also pos itively affect microwave absorption. The dielectric properties of EFB were observed to be proportional to the moisture content. Furthermore, the microwave penetration depth was found highest at 20% moisture, i.e. 3.5 cm. However, low values of both dielectric constant and loss of dried EFBs would require the addi tion of microwave absorbers for pyrolysis reaction. The fuel and chemical characteristics of EFB were found comparable to other biomasses, which indicated a good candidate for microwave pyrolysis treatment.
机译：作为世界上最大的油棕生产国之一，马来西亚的油棕空果捆（EFB）等农业废物引起了环境方面的关注。热解因其在生产固体，液体和气体产品中的灵活性而可用于处理生物质废物。这项研究试图表征使用微波作为替代热源进行热解的EFB。从当地一家油棕厂获得的EFB进行了燃料，化学和介电性能分析。研究结果表明，高水分和47％的氧气产生的低热值为16 MJ / kg。值得注意的是，高水分含量在微波加热中是一个优势，因为水是一种良好的微波吸收剂，可以快速干燥。此外，高挥发物含量为70％，使EFB具有高反应活性的优点。适度的12.8％钾含量也可能会积极影响微波吸收。观察到EFB的介电性能与水分含量成正比。此外，发现微波穿透深度在20％的湿度下最高，即3.5cm。但是，介电常数和干燥的EFB的损失均较低，则需要添加用于热解反应的微波吸收剂。发现EFB的燃料和化学特性与其他生物质相当，这表明微波热解处理的良好候选者。

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  • 来源
    《Fuel》 |2011年第4期|p.1536-1544|共9页
  • 作者

    Rozita Omar; A. Idris; R Yunus; K. Khalid; M.I. Aida Isma;

  • 作者单位

    Department of Chemical & Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia 43400 Serdang, Selangor, Malaysia;

    Department of Chemical & Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia 43400 Serdang, Selangor, Malaysia;

    Department of Chemical & Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia 43400 Serdang, Selangor, Malaysia;

    Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;

    School of Engineering, SECi University College, 9,]alan Teknologi, Taman Sains Selangor, Kota Damansara, PJU 5,47810 Petaling ]aya, Selangor, Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    characterization; empty fruit bunch; microwave; pyrolysis;

    机译：表征;空果一束;微波;热解;

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