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Lanthanum-chromium-nickel perovskites for the catalytic cracking of tar model compounds

机译：镧铬镍钙钛矿对焦油模型化合物的催化裂解

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摘要

In this work two perovskites (LaCr_(0.7)Ni_(0.3_O_3 and LaCr_(0.5)Ni_(0.5)O_3) were studied as possible catalysts for cracking of tar produced by pyrolysis and gasification of biomass and wastes. Naphthalene and n-hexadecane were chosen as model compounds for tar. The results were also compared with those ones obtained by testing the LaFeo.7Nio.3O3 catalyst whose behavior was reported in the literature. The catalysts containing chromium are much more stable although less active than LaFe_(0.7)Ni_(0.3)O_3; in all tests an almost constant conversion of the hydrocarbons was found. The tests were prolonged till 400 h. XRD analysis performed on the used samples showed that the perovskite structure was unchanged. The better stability was also confirmed by TPR tests.
机译：在这项工作中，研究了两种钙钛矿（LaCr_（0.7）Ni_（0.3_O_3和LaCr_（0.5）Ni_（0.5）O_3）作为裂解生物质和废物热解和气化产生的焦油的催化剂的方法，其中萘和正十六烷是还选择了作为焦油的模型化合物的结果，并将其结果与通过文献报道了性能的LaFeo.7Nio.3O3催化剂的测试结果进行了比较，尽管活性比LaFe_（0.7）Ni_低（0.3）O_3；在所有测试中均发现了几乎恒定的碳氢化合物转化率，测试时间延长至400 h，对使用过的样品进行XRD分析表明钙钛矿结构没有变化，TPR测试也证实了较好的稳定性。 。

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  • 来源
    《Fuel》 |2013年第1期|393-397|共5页
  • 作者

    E.M. Grieco; C. Gervasio; G. Baldi;

  • 作者单位

    Politecnico di Torino, Dipartimento di Scienza dei Materiali e Ing. Chimica, Corso Duca degli Abruzzi 24, 10129 Torino, Italy;

    Politecnico di Torino, Dipartimento di Scienza dei Materiali e Ing. Chimica, Corso Duca degli Abruzzi 24, 10129 Torino, Italy;

    Politecnico di Torino, Dipartimento di Scienza dei Materiali e Ing. Chimica, Corso Duca degli Abruzzi 24, 10129 Torino, Italy;

  • 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

    tar; cracking; catalyst; gasification;

    机译：柏油;破裂催化剂;气化;

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