• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemical Engineering Science >Experimental, kinetic and 2-D reactor modeling for simulation of the production of hydrogen by the catalytic reforming of concentrated crude ethanol (CRCCE) over a Ni-based commercial catalyst in a packed-bed tubular reactor
【24h】

Experimental, kinetic and 2-D reactor modeling for simulation of the production of hydrogen by the catalytic reforming of concentrated crude ethanol (CRCCE) over a Ni-based commercial catalyst in a packed-bed tubular reactor

机译：实验，动力学和二维反应器模型，用于模拟在填充床管式反应器中通过在镍基商用催化剂上对重质粗乙醇（CRCCE）进行催化重整来生产氢气

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

Mechanistic kinetic models were formulated based on Langmuir-Hinshelwood-Hougen-Watson and Eley-Rideal approaches to describe the kinetics of hydrogen production by the catalytic reforming of concentrated crude ethanol over a Ni-based commercial catalyst at atmospheric pressure, temperature range of 673-863 K, ratio of weight of catalyst to the molar rate of crude ethanol 3472-34722 ka cat s/kmol crude in a stainless steel packed bed tubular microreactor. One of the models yielded an excellent degree of correlation, and was selected for the simulation of the reforming process which used a pseudo-homogeneous numerical model consisting of coupled material and energy balance equations with reaction. The model was solved using finite elements method without neglecting the axial dispersion term. The crude ethanol conversion predicted by the model was in good agreement with the experimental data (AAD% = 4.28). Also, the predicted concentration and temperature profiles for the process in the radial direction indicate that the assumption of plug flow isothermal behavior is justified within certain reactor configurations. However, the axial dispersion term still contributed to the results, and thus, cannot be neglected. (c) 2007 Elsevier Ltd. All rights reserved.
机译：基于Langmuir-Hinshelwood-Hougen-Watson和Eley-Rideal方法建立了力学动力学模型，以描述在常压下，温度范围为673-650的镍基商用催化剂上，通过浓缩重质乙醇在镍基商用催化剂上的催化重整制氢的动力学。 863 K，在不锈钢填充床管式微反应器中，催化剂的重量与粗乙醇的摩尔比3472-34722 ka cat s / kmol原油的比率。其中一个模型具有极好的相关性，因此选择该模型进行重整过程的仿真，该模型使用由材料和能量平衡方程与反应耦合的拟均质数值模型。使用有限元方法求解模型，而不会忽略轴向色散项。该模型预测的粗乙醇转化率与实验数据吻合良好（AAD％= 4.28）。而且，该方法在径向方向上的预测浓度和温度曲线表明，在某些反应器配置内，推流等温行为的假设是合理的。但是，轴向色散项仍对结果有贡献，因此不能忽略。 （c）2007 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 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