...
首页> 外文期刊>Journal of Cleaner Production >Multi-objective optimisation of steam methane reforming considering stoichiometric ratio indicator for methanol production
【24h】

Multi-objective optimisation of steam methane reforming considering stoichiometric ratio indicator for methanol production

机译:考虑化学计量比指标的甲醇生产蒸汽甲烷重整的多目标优化

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

This work proposes a novel configuration for steam methane reformers (SMR) in order to improve their syngas stoichiometric ratio (S-R). This is a decisive element for methanol producers to increase their production tonnage. While the optimum theoretical S-R value is around 2, many conventional SMRs operate far beyond this value due to thermodynamic equilibrium limitations. In the new SMR design CO2, which could be an industrial off gas, is injected into the reactor in multiple stages. The corresponding CO2 injection flow rate is determined by a multi-objective optimization method. The optimum flow rate at each stage is chosen to minimise abs (S-R-2) while maintaining the CH4 conversion at its highest value (about 68%). Furthermore, the new design helps to improve the thermodynamic equilibrium conversion in SMR resulting in 33% more CO production. As well as this, the pressure drop along the new reactor is proved to be substantially lower than the conventional SMR. (C) 2018 Elsevier Ltd. All rights reserved.
机译:这项工作提出了一种用于蒸汽甲烷重整器(SMR)的新颖配置,以提高其合成气化学计量比(S-R)。这是甲醇生产商增加生产吨位的决定性因素。尽管最佳理论S-R值约为2,但由于热力学平衡限制,许多常规SMR的工作情况远远超出了该值。在新的SMR设计中,二氧化碳(可能是工业废气)会分多个阶段注入到反应器中。通过多目标优化方法确定相应的CO2注入流速。选择每个阶段的最佳流速以使吸收值(S-R-2)最小化,同时将CH4转化率保持在最高值(约68%)。此外,新设计有助于改善SMR中的热力学平衡转化率,从而使CO生成量增加33%。除此之外,事实证明沿新反应器的压降大大低于传统的SMR。 (C)2018 Elsevier Ltd.保留所有权利。

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