• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>AIChE Journal >Model-based optimization of hydrogen generation by methane steam reforming in autothermal packed-bed membrane reformer
【24h】

Model-based optimization of hydrogen generation by methane steam reforming in autothermal packed-bed membrane reformer

机译：基于模型的自热填充床膜重整器中甲烷蒸汽重整制氢的优化

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

An autothermal membrane reformer comprising two separated compartments, a methane oxidation catalytic bed and a methane steam reforming bed, which hosts hydrogen separation membranes, is optimized for hydrogen production by steam reforming of methane to power a polymer electrolyte membrane fuel cell (PEMFC) stack. Capitalizing on recent experimental demonstrations of hydrogen production in such a reactor, we develop here an appropriate model, validate it with experimental data and then use it for the hydrogen generation optimization in terms of the reformer efficiency and power output. The optimized reformer, with adequate hydrogen separation area, optimized exothermic-to-endothermic feed ratio and reduced heat losses, is shown to be capable to fuel kW-range PEMFC stacks, with a methane-to-hydrogen conversion efficiency of up to 0.8. This is expected to provide an overall methane-to-electric power efficiency of a combined reformer-fuel cell unit of ～0.5. Recycling of steam reforming effluent to the oxidation bed for combustion of unreacted and unseparated compounds is expected to provide an additional efficiency gain. ? 2010 American Institute of Chemical Engineers AIChE J, 2011
机译：包括两个分开的隔室的自热膜重整器，其中有一个甲烷氧化催化床和一个容纳氢分离膜的甲烷蒸汽重整床，通过甲烷的蒸汽重整为聚合物电解质膜燃料电池（PEMFC）堆提供动力来优化制氢。利用最近在这种反应器中制氢的实验证明，我们在这里开发一个合适的模型，用实验数据对其进行验证，然后将其用于重整器效率和功率输出方面的制氢优化。经优化的重整器具有足够的氢分离面积，优化的放热-吸热进料比和降低的热损失，被证明能够为kW级PEMFC电池组提供燃料，甲烷至氢的转化效率最高为0.8。预计这将为重整燃料电池组合提供约0.5的整体甲烷发电效率。期望将蒸汽重整流出物再循环至氧化床以燃烧未反应和未分离的化合物，这将提供额外的效率提高。 ？ 2010美国化学工程师学会AIChE J，2011

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