4.4 Article

Chemical Looping Dry Reforming as Novel, Intensified Process for CO2 Activation

期刊

CHEMICAL ENGINEERING & TECHNOLOGY
卷 35, 期 7, 页码 1281-1290

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.201100649

关键词

Carbon capture; Chemical looping; CO2 utilization; Nanomaterials; Process Intensification

资金

  1. U.S. Department of Energy's National Energy Technology Laboratory's on-going research under the RDS [DE-AC26-04NT41817]
  2. DOE-NETL
  3. Swanson School of Engineering
  4. IGERT fellowship from the National Science Foundation through the University of Pittsburgh's Mascaro Center for Sustainable Innovation

向作者/读者索取更多资源

Chemical looping dry reforming (CLDR) is a novel, intensified route for CO2 activation. Two nanostructured carriers (Fe-BHA and Fe@SiO2) are synthesized, characterized, and evaluated with regard to activity and stability in thermogravimetric and fixed-bed CLDR reactor studies over a temperature range of similar to 500-800 degrees C. Fe-barium hexaaluminate (Fe-BHA) shows fast redox kinetics and stable operation over multiple CLDR cycles, while Fe@SiO2 exhibits poor activity for CO generation due to a partial loss of the core-shell structure and formation of silicates. While the latter could be removed via a two-step oxidation scheme, carrier utilization remained well below that of Fe-BHA (similar to?51?% versus similar to?15?%). However, the two-step oxidation configuration turns the net endothermic CLDR process into a net exothermic process, opening up a highly efficient autothermal process alternative.

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