...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications >Fuel processor based on syngas production via short contact time catalytic partial oxidation reactors
【24h】

Fuel processor based on syngas production via short contact time catalytic partial oxidation reactors

机译：基于短接触时间催化部分氧化反应器生产合成气的燃料处理器

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Short contact time catalytic partial oxidation (SCT-CPO) of natural gas is a promising technology for syngas production, representing an appealing alternative to existing processes. The high conversion and selectivity observed since the earlier works in this field can make this process attractive. Moreover, the SCT-CPO reactors can be autothermally operated and the possibility to use air as oxidant appears a feasible route to reduce syngas production costs: these two issues make possible the use of a SCT-CPO reactor as the reformer of a fuel processor for H-2 production for fuel cells. The present work refers to an experimental study of syngas production from CH4 and O-2 via a SCT-CPO reactor made of a fixed bed of Rh/alpha Al2O3 spheres. The main obtained results are: (i) an increase in GHSV produces an enhancement of transport rates and this in turn determines an improvement in CH4 conversion, despite the reduction in residence time; (ii) the catalyst pellets get hotter than the gas phase thus favouring the H-2 and CO production: syngas formation is in fact both thermodynamically and kinetically promoted at high temperatures; (iii) a similar improvement of conversion was obtained with a reduction of the catalyst particle size, thanks once again to an increase in the heat transport and a higher geometrical surface area of the catalyst itself. By a slight increase of the O-2 fed to the reactor, H-2 and CO yields can be maximised and a complete CH4 conversion achieved. (c) 2006 Elsevier B.V. All fights reserved.
机译：天然气的短接触时间催化部分氧化（SCT-CPO）是合成气生产的一项有前途的技术，代表了现有工艺的诱人替代品。自从该领域的早期工作以来，观察到的高转化率和选择性可使该方法具有吸引力。此外，SCT-CPO反应器可以自动热运行，使用空气作为氧化剂的可能性似乎是降低合成气生产成本的可行途径：这两个问题使得SCT-CPO反应器可以用作燃料处理器的重整器燃料电池的H-2生产。目前的工作是指通过SCT-CPO反应器由CH4和O-2生产合成气的实验研究，该反应器由Rh / alpha Al2O3球的固定床制成。获得的主要结果是：（i）GHSV的增加使转运速率提高，尽管滞留时间减少了，但这反过来又决定了CH4转化率的提高; （ii）催化剂颗粒比气相更热，从而有利于H-2和CO的产生：合成气的形成实际上在高温下在热力学和动力学上均得到促进; （iii）由于催化剂的热传递增加和较高的几何表面积本身，通过减小催化剂粒度获得了类似的转化率改善。通过稍微增加进料到反应器中的O-2，可以使H-2和CO的收率最大化，并实现完全的CH4转化。 （c）2006年Elsevier B.V.版权所有。

著录项

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