...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >CO_2 capture using some fly ash-derived carbon materials
【24h】

CO_2 capture using some fly ash-derived carbon materials

机译：使用一些粉煤灰衍生的碳材料捕获CO_2

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

Adsorption is considered to be one of the more promising technologies for capturing CO_2 from flue gases. For post-combustion capture, the success of such an approach is however dependent on the development of an adsorbent that can operate competitively at relatively high temperatures. In this work, low cost carbon materials derived from fly ash, are presented as effective CO_2 sorbents through impregnation these with organic bases, for example, polyethylenimine aided by polyethylene glycol. The results show that for samples derived from a fly ash carbon concentrate, the CO_2 adsorption capacities were relatively high (up to 4.5 wt percent) especially at high temperatures (75 deg C), where commercial active carbons relying on physi-sorption have low capacities. The addition of PEG improves the adsorption capacity and reduces the time taken for the sample to reach the equilibrium. No CO_2 seems to remain after desorption, suggesting that the process is fully reversible.
机译：吸附被认为是从烟气中捕获CO_2的最有前途的技术之一。对于燃烧后捕集，这种方法的成功取决于能否在相对较高的温度下竞争性运行的吸附剂的开发。在这项工作中，通过使用有机碱（例如，由聚乙二醇辅助的聚乙烯亚胺）浸渍，将来自粉煤灰的低成本碳材料作为有效的CO_2吸附剂存在。结果表明，对于来自粉煤灰碳精矿的样品，CO_2的吸附能力相对较高（高达4.5 wt％），尤其是在高温（75摄氏度）下，依靠物理吸附的商业活性炭的能力较低。 PEG的添加改善了吸附能力，并减少了样品达到平衡所需的时间。解吸后似乎没有残留CO_2，表明该过程是完全可逆的。

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