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首页> 外文期刊>Renewable energy >Catalytic co-pyrolysis of torrefied poplar wood and high-density polyethylene over hierarchical HZSM-5 for mono-aromatics production
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Catalytic co-pyrolysis of torrefied poplar wood and high-density polyethylene over hierarchical HZSM-5 for mono-aromatics production

机译：单芳烃生产催化粉滴木材和高密度聚乙烯高密度聚乙烯的催化共热分析

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摘要

The catalytic co-pyrolysis of torrefied poplar wood sawdust (TPW) and high-density polyethylene (HDPE) was investigated over hierarchical HZSM-5. Compared with raw PW/HDPE, the bio-oil yield from co-pyrolysis of TPW/HDPE decreased gradually while the quality of bio-oil was upgraded. With increasing torrefaction temperature from 220 to 280 degrees C, the amounts of acids, furans, and anhydrosugars in bio-oil were significantly reduced due to the removal of hemicellulose, whereas the production of phenols and alkenes were improved due to the enhanced hydrogen transfer reaction. In the catalytic co-pyrolysis, increasing torrefaction temperature caused an enhanced production of mono-aromatics as well as the selectivity of BTX (benzene, toluene, and xylene). Nevertheless, severe torrefaction (280 degrees C) lead to a rapid reduction of aromatic yield and selectivity due to the loss of cellulose. Compared to parent HZSM-5, hierarchical HZSM-5 treated with alkaline concentration (0.2-0.3 mol/L) favored the formation of mono aromatics at the expense of polyaromatics. The maximum mono-aromatics yield of 71.75% was obtained during catalytic co-pyrolysis of 260-TPW/HDPE over 0.3-HZSM-5. The present work suggests that torrefaction pretreatment followed by the catalysis of hierarchical HZSM-5 is an efficient way to promote the production of valuable mono-aromatic hydrocarbons from biomass and plastic wastes. (C) 2020 Elsevier Ltd. All rights reserved.
机译：在等级HZSM-5上研究了雾化杨树木锯末（TPW）和高密度聚乙烯（HDPE）的催化共热分解。与原料PW / HDPE相比，TPW / HDPE共热的生物油产量逐渐降低，而生物油的质量升级。随着220至280摄氏度的增加，由于去除半纤维素，生物油中的酸，呋喃和亚硫醇的量显着降低，而由于增强的氢转移反应，酚类和烯烃的产生得到改善。在催化的共热分解中，增加的烘焙温度增加了单芳烃的增强，以及BTX（苯，甲苯和二甲苯）的选择性。然而，由于纤维素的损失，严重的烘焙（280℃）导致芳族产率和选择性的快速降低。与亲本HZSM-5相比，用碱性浓度（0.2-0.3mol / L）处理的分层HZSM-5（0.2-0.3 mol / L），以牺牲多芳基团形成单芳烃。在0.3-HzSM-5的催化共热分解期间获得71.75％的最大单芳烃产率为71.75％。目前的作品表明，烘焙预处理随后是分层HZSM-5的催化是促进来自生物质和塑料废物的有价值的单芳烃的生产的有效方法。 （c）2020 elestvier有限公司保留所有权利。

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  • 来源
    《Renewable energy》 |2021年第2期|87-95|共9页
  • 作者

    Lin Xiaona; Kong Lingshuai; Ren Xiajin; Zhang Donghong; Cai Hongzhen; Lei Hanwu;

  • 作者单位

    Shandong Univ Technol Sch Agr Engn & Food Sci Zibo 255000 Peoples R China;

    Shandong Univ Technol Sch Agr Engn & Food Sci Zibo 255000 Peoples R China;

    Shandong Univ Technol Sch Agr Engn & Food Sci Zibo 255000 Peoples R China;

    Shandong Univ Technol Sch Agr Engn & Food Sci Zibo 255000 Peoples R China;

    Shandong Univ Technol Sch Agr Engn & Food Sci Zibo 255000 Peoples R China;

    Washington State Univ Dept Biol Syst Engn Richland WA 99352 USA;

  • 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

    Torrefaction; Co-pyrolysis; Hierarchical HZSM-5; Biomass; Mono-aromatics;

    机译：Torrefaction;共热分解;分层HZSM-5;生物量;单芳烃;

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