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Catalytic cracking of heavy fractions from the pyrolysis of waste HDPE and PP

机译：废HDPE和PP热解过程中重组分的催化裂化

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摘要

In the present paper, automotive waste plastics were considered as a potential source of fuels and chemicals. The feedstock in the experimental tests was represented by the heaviest fractions from the distillation of pyro-oil from the pyrolysis of high-density polyethylene (HDPE-wax) and polypropylene (PP-wax). Due to their very high viscosity both polymer-waxes were, prior to processing, diluted in atmospheric gas oil (GO). Mixtures with hydrotreated vacuum gas oil (HVGO) were also prepared and processed under simulated fluid catalytic cracking conditions via a MAT-test. The product distribution was similar to the one shown by the commercial FCC process: light gases (C-1, C-2), LPG, gasoline fraction, light and heavy cycle oil. To maintain optimal performance a commercial FCC equilibrium catalyst (FCC-ECAT) was used. When processing HDPE and PP waxes, high yields of profiling products - propylene and gasoline were obtained. In the case of the PP-wax feed without HVGO, the yield of gasoline was even higher than in case of pure HVGO. When cracking HDPE-wax feed mixtures the product distribution was oriented more towards the production of propylene. The composition of liquid products considering all types of feedstock consisted mainly of iso-alkanes and aromatics. The calculated values of microactivity for the HDPE-wax and PP-wax feedstock, with or without HVGO, were significantly higher than in the case of pure HVGO. (C) 2017 Elsevier Ltd. All rights reserved.
机译：在本文中，汽车废塑料被认为是燃料和化学品的潜在来源。实验测试中的原料以高密度聚乙烯（HDPE-蜡）和聚丙烯（PP-蜡）的热解过程中的热油蒸馏中最重的馏分为代表。由于它们的极高粘度，在加工之前，将两种聚合物蜡都用大气瓦斯油（GO）稀释。还制备了加氢处理过的减压粗柴油（HVGO）的混合物，并在模拟的流体催化裂化条件下通过MAT测试对其进行了处理。产品分布类似于商业FCC工艺显示的产品：轻质气体（C-1，C-2），LPG，汽油馏分，轻质和重循环油。为了维持最佳性能，使用了商业FCC平衡催化剂（FCC-ECAT）。在加工HDPE和PP蜡时，获得了高产率的成型产品-丙烯和汽油。在没有HVGO的PP蜡进料的情况下，汽油的产量甚至比纯HVGO的更高。当裂解HDPE-蜡进料混合物时，产物分布更倾向于丙烯的生产。考虑到所有类型的原料，液体产品的组成主要由异烷烃和芳烃组成。带有或不带有HVGO的HDPE蜡和PP蜡原料的微活性计算值明显高于纯HVGO的微观活性。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Fuel》 |2017年第1期|244-252|共9页
  • 作者

    Lovas Peter; Hudec Pavol; Jambor Boris; Hajekova Elena; Hornacek Michal;

  • 作者单位

    Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Dept Petr Technol & Petrochem, Radlinskeho 9, Bratislava 81237, Slovakia;

    Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Dept Petr Technol & Petrochem, Radlinskeho 9, Bratislava 81237, Slovakia;

    Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Dept Petr Technol & Petrochem, Radlinskeho 9, Bratislava 81237, Slovakia;

    Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Dept Petr Technol & Petrochem, Radlinskeho 9, Bratislava 81237, Slovakia;

    Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Dept Petr Technol & Petrochem, Radlinskeho 9, Bratislava 81237, Slovakia;

  • 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

    Catalytic cracking; HDPE; PP; FCC; Gasoline;

    机译：催化裂化;HDPE;PP;FCC;汽油;

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