...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >Thermodynamic analysis for syngas production from volatiles released in waste tire pyrolysis
【24h】

Thermodynamic analysis for syngas production from volatiles released in waste tire pyrolysis

机译：废轮胎热解过程中释放的挥发物产生合成气的热力学分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper shows the maximum limit on syngas composition obtained from volatiles released in waste tire pyrolysis when they are submitted to an air-steam partial oxidation process. Thus, from mass and energy balances and a stoichiometric equilibrium model, syngas composition and reaction temperature as well as some process parameters were predicted by varying both the equivalence ratio (ER) and the steam to fuel ratio (SF). In addition, pyrolysis experiments were performed using a continuous auger reactor, and the influence of pyrolysis temperature on composition of both volatiles and char was studied. Consequently, the resulting syngas characteristics were correlated with the pyrolysis temperature. The stoichiometric equilibrium model showed that an ER down to 0.4 is a practical limit to perform the air-steam partial oxidation process. When the process is carried out only with air, volatiles obtained at high pyrolysis temperature lead to lower reaction temperature and higher LHV of syngas in comparison with those found at low pyrolysis temperature. The H_2 production is favored between 0.20 and 0.40 of ER and seems to be more influenced by the H/C ratio than by the water gas-shift reaction. On the other hand, the steam addition shows a more notable effect on the H_2 production for volatiles obtained at the highest pyrolysis temperature (600 ℃) in agreement with the lower reaction temperature under these experimental conditions. This thermodynamic analysis provides essential data on the optimization of syngas production from volatiles released in waste tire pyrolysis prior to run any test.
机译：本文显示了废轮胎热解过程中释放出的挥发物经过空气-蒸汽部分氧化过程后所获得的合成气成分的最大限量。因此，根据质量和能量平衡以及化学计量的平衡模型，通过同时改变当量比（ER）和蒸汽/燃料比（SF）来预测合成气组成和反应温度以及一些工艺参数。另外，使用连续螺旋钻反应器进行热解实验，并且研究了热解温度对挥发物和炭的组成的影响。因此，所得合成气特性与热解温度相关。化学计量平衡模型表明，将ER降至0.4是执行空气蒸汽部分氧化过程的实际限制。当仅用空气进行该过程时，与在低热解温度下发现的那些相比，在高热解温度下获得的挥发物导致较低的反应温度和较高的合成气LHV。 H_2的产生在ER的0.20至0.40之间是有利的，并且似乎受H / C比的影响比受水煤气变换反应的影响更大。另一方面，在这些实验条件下，最高的热解温度（600℃）与较低的反应温度相一致，添加蒸汽对挥发物的H_2生成表现出更显着的影响。这种热力学分析提供了关于在进行任何测试之前，优化废轮胎热解过程中释放的挥发物生产合成气的基本数据。

著录项

  • 来源
    《Energy Conversion & Management》 |2014年第5期|338-353|共16页
  • 作者

    Juan Daniel Martinez; Ramon Murillo; Tomas Garcia; Inmaculada Arauzo;

  • 作者单位

    Instituto de Carboquimica, ICB-CSIC Miguel Luesma Castan 4,50018 Zaragoza, Spain,Grupo de Investigaciones Ambientales, GIA, Universidad Pontificia Bolivariana, Circular 1 N°70-01, Bloque 11, piso 2, Medellin, Colombia;

    Instituto de Carboquimica, ICB-CSIC Miguel Luesma Castan 4,50018 Zaragoza, Spain;

    Instituto de Carboquimica, ICB-CSIC Miguel Luesma Castan 4,50018 Zaragoza, Spain;

    Centro de Investigacion de Recursos y Consumos Energeticos, CIRCE, Universidad de Zaragoza, Mariano Esquillor 15, 50018 Zaragoza, Spain;

  • 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

    Waste tire; Pyrolysis; Gasification; Syngas; Thermodynamic equilibrium;

    机译：废轮胎;热解;气化;合成气热力学平衡;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号