Treatment of sulfur and nitrogen oxides with mg-al oxide obtained by the thermal decomposition of mg-al layered double hydroxide

研究成果: Chapter

抄録

A new treatment method for SOx has been examined using a slurry of Mg-Al oxide in H2O. Dissolution of SOx in the slurry produces SOx˙Mg-Al LDH, which can be calcined to yield sulfuric acid, MgO, and MgAl2O4. In addition, the treatment of H2SO4 with Mg-Al oxide was examined in terms of kinetics and equilibrium studies in order to clarify the nature of the reaction between the Mg-Al oxide slurry and SOx. We also examined this Mg-Al oxide treatment method for NOx. The NOx dissolves in the Mg-Al oxide slurry and produces NOx˙Mg-Al LDH. The isolated NOx˙Mg-Al LDH can also be calcined, yielding in this case, nitric acid and the reconstituted Mg-Al oxide. In addition, the treatment of HNO3 with Mg-Al oxide was examined with respect to kinetics and equilibrium studies in order to clarify the nature of the interaction between the Mg-Al oxide and NOx. Finally, we demonstrated the simultaneous removal of SO2 and NO2 from a mixed gas stream using the Mg-Al oxide slurry treatment.

本文言語English
ホスト出版物のタイトルLayered Double Hydroxides (LDHs)
ホスト出版物のサブタイトルSynthesis, Characterization and Applications
出版社Nova Science Publishers, Inc.
ページ73-100
ページ数28
ISBN(電子版)9781634820400
ISBN(印刷版)9781634820240
出版ステータスPublished - 2015 4 1

ASJC Scopus subject areas

  • 材料科学(全般)

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