Catalyst for methane synthesis and method of manufacturing the same
AssigneeHonda Motor Co., Ltd.
InventorsHideaki YONEDA, Kazuki YANAGISAWA, Misato MAKI, Masahiro MOHRI, Jumpei YOSHIDA, Noritatsu TSUBAKI
Life of this patent
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Abstract
A catalyst for methane synthesis is made up from layered double hydroxides represented by the following general formula (1). [M2+1-xM3+x(OH)2]x+[An−x/n·yH2O] (1) In formula (1), M2+ is Ni2+ and M3+ is Al3+ or Cr3+. Further, An− is CO32−. Furthermore, the term x lies within a range of 0.19 to 0.34 (0.19≤x≤0.34), and y is 0 or a positive integer.
Claims7
A catalyst for methane synthesis that is made up from layered double hydroxides represented by a following general formula, and that promotes a synthesis reaction for obtaining methane,
- [M2+1-xM3+x(OH)2]x+[An−x/n·yH2O]x− (1)
- wherein, in the general formula, M2+ and An− are Ni2+ and CO32−, respectively, and M3+ is Al3+ or Cr3+,
- where 0.19≤x≤0.34, and y is 0 or a positive integer.
A method of manufacturing a catalyst for methane synthesis that is made up from layered double hydroxides represented by a following general formula, and that promotes a synthesis reaction for obtaining methane,
- [M2+1-xM3+x(OH)2]x+[An−x/n·yH2O]x− (1)
- wherein, in the general formula, M2+ and An− are Ni2+ and CO32−, respectively, and M3+ is Al3+ or Cr3+, where 0.19≤x≤0.34, and y is 0 or a positive integer,
- the method comprising:
- dissolving nickel nitrate, chromium nitrate or aluminum nitrate, and urea in water and thereby obtaining a mixed solution;
- heating and pressurizing the mixed solution and thereby obtaining a generated product;
- cleaning the generated product;
- and
- firing the generated product that has been cleaned and thereby obtaining the layered double hydroxides.
Dependencies are inferred from the claim text.