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首页> 外文期刊>RSC Advances >Activated carbon and palm oil fuel ash as microwave absorbers for microwave-assisted pyrolysis of oil palm shell waste
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Activated carbon and palm oil fuel ash as microwave absorbers for microwave-assisted pyrolysis of oil palm shell waste

机译：活性炭和棕榈油燃料灰作为微波吸收剂，用于微波辅助热解油棕榈壳废物

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摘要

In this study, the effects of two microwave absorbers (MWAb) or catalysts, namely activated carbon (AC) and palm oil fuel ash (POFA), were investigated in microwave pyrolysis of oil palm shell (OPS). The results show similar trends and ranges of the dielectric properties for both MWAbs when measured using a network analyzer with an open-end probe at 2.45 GHz from room temperature to 100 degrees C. However, according to the Brunauer-Emmett-Teller (BET) method, AC has a larger specific surface area (SSA) and pore volume than POFA. The higher SSA of the AC allows more molecules of gas or liquid substances to be attached on its surfaces than on POFA. This adsorption does not change the structure of AC or POFA. Therefore, on using AC the phenol content was higher than with POFA, as observed from GC-MS peak areas. Both MWAbs had absorbed liquid or gas molecules that may adhere to the surfaces either physically or chemically (or by both types of mechanisms) facilitating bonding to form different molecules. However, phenol derivatives, overall chemical compositions, and product yields were similar for these two MWAbs, according to ANOVA.
机译：在该研究中，在油棕壳（OPS）的微波热解中，研究了两个微波吸收剂（MWAB）或催化剂，即活性炭（AC）和棕榈油燃料灰（POFA）的影响。结果表明，使用网络分析仪测量的介电特性的相似趋势和范围，当使用室温为2.45GHz的开口探针到100摄氏度测量时，在2.45GHz下测量。然而，根据Brunauer-emmett-Teller（Bet）的说法方法，AC具有比POFA更大的比表面积（SSA）和孔体积。 AC的较高SSA允许更多的气体或液体物质附着在其表面上而不是POFA。这种吸附不会改变AC或POFA的结构。因此，根据GC-MS峰面积观察到，使用AC的苯酚含量高于POFA。两个MWAB吸收了液体或气体分子，其可以粘附到物理或化学（或通过两种类型的机制）促进键合形成不同的分子。然而，根据ANOVA的说法，苯酚衍生物，整体化学组合物和产品产率类似于这两个MWAB。

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  • 来源
    《RSC Advances》 |2020年第53期|共11页
  • 作者

    Chuayjumnong Sunisa; Karrila Seppo; Jumrat Saysunee; Pianroj Yutthapong;

  • 作者单位

    Prince Songkla Univ Fac Engn Dept Mech Engn Energy Technol Hatyai Campus 15 Karnjanavanich Rd Hat Yai 90110 Songkhla Thailand;

    Prince Songkla Univ Fac Sci &

    Ind Technol Suratthani Campus 31 Moo 6 Muang 84000 Suratthani Thailand;

    Prince Songkla Univ Fac Sci &

    Ind Technol Suratthani Campus 31 Moo 6 Muang 84000 Suratthani Thailand;

    Prince Songkla Univ Fac Sci &

    Ind Technol Suratthani Campus 31 Moo 6 Muang 84000 Suratthani Thailand;

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  • 正文语种 eng
  • 中图分类 化学;
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