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Selection and performance comparison of jet fuel surrogates for autothermal reforming

机译：自热重整用喷气燃料替代物的选择和性能比较

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摘要

Three fuel mixtures were investigated as possible surrogates for low-sulfur JP-8. The selected fuel mix tures were chosen based on a desire to match hydrocarbon chemical composition classes found in real jet fuels. The surrogate fuels selected consisted of single, binary and tertiary-component mixtures of n-dodecane, decalin and toluene in liquid volume ratios of 10∶0∶0,9∶1∶0 and 7:1:2. The hydrocarbon com ponents selected represented the largest chemical classes within JP-8 of normal paraffin, cyclo-paraffin and aromatic. The surrogate fuels and individual surrogate fuel components were reacted in an atmo spheric pressure autothermal reformer with noble metal catalysts under conditions of steam-to-carbon ratio of 2.0, fuel equivalency energy flow of 3.3 kW thermal, space velocities of 21,000-28,000 h~(-1) and variable oxygen-to-carbon ratios of 0.8-1.2. For all fuels investigated fuel conversion of greater than 96% could be achieved. The single component n-dodecane proved to be the least reactive resulting in lower hydrogen yields, lower reforming efficiency and increased olefin products in the reformate. The binary mixture of n-dodecane and decalin resulted in a closer match with JP-8, but did not correlate well in terms of fuel conversion and hydrogen yield. Aliphatic mixtures also exhibited greater olefin produc tion. The three-component mixture of n-dodecane/decalin/toluene provided the best correlation to JP-8 and appears to be a good three-component surrogate fuel, particularly over the operating range of oxygen to carbon ratio of 0.95-1.10.
机译：研究了三种燃料混合物，作为低硫JP-8的替代物。基于匹配真实喷气燃料中发现的烃化学组成类别的期望来选择所选的燃料混合物。选择的替代燃料由正十二烷，十氢化萘和甲苯的单组分，二组分和三组分混合物组成，液体体积比为10∶0∶0、9∶1∶0和7：1：2。所选的烃成分代表了JP-8中正链烷烃，环烷烃和芳烃的最大化学类别。替代燃料和单个替代燃料组分在大气压自热重整器中与贵金属催化剂在蒸汽碳比2.0，燃料当量能流3.3 kW热，空速21,000-28,000 h〜的条件下反应。 （-1），可变氧碳比为0.8-1.2。对于所有研究的燃料，可以实现大于96％的燃料转化率。单组分正十二烷被证明是反应性最低的，导致较低的氢产率，较低的重整效率和重整产物中烯烃产物的增加。正十二烷和十氢化萘的二元混合物与JP-8更加匹配，但在燃料转化率和氢气产率方面却没有很好的相关性。脂肪族混合物还显示出更高的烯烃产量。正十二烷/十氢化萘/甲苯的三组分混合物与JP-8的相关性最好，并且似乎是一种良好的三组分替代燃料，尤其是在氧碳比为0.95-1.10的操作范围内。

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  • 来源
    《Fuel》 |2011年第4期|p.1439-1448|共10页
  • 作者

    Terry G. DuBois; Sen Nieh;

  • 作者单位

    US Army Research, Development and Engineering Command, 10125 Gratiot Road, Fort Belvoir, VA 22060-5816, United States;

    The Catholic University of America, Department of Mechanical Engineering, 620 Michigan Avenue, NE Washington, DC 20064, United States;

  • 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

    surrogate fuel; partial oxidation; autothermal reforming; jet fuel; fuel cell;

    机译：替代燃料部分氧化;自热重整喷气燃料;燃料电池;

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