Title:
炭化水素のメタン化方法
Document Type and Number:
Japanese Patent JP5767957
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for improving a product yield and dispensing with separating higher-order hydrocarbons for combustion and disposal thereof, when natural gas obtained from a gas well is completely converted into methane by subjecting the natural gas containing hydrocarbons having two or more carbon atoms to hydrogenation treatment so as to be converted into pure methane, and the pure methane is required as a product.SOLUTION: A catalyst is used, in which an iron group element in the metal state is carried as an active species on a carrier which has a composition, in terms of atom% based on metals in the elemental state, comprising (A)18-70 atom% Zr, (B) 1-20 atom% one or two or more kinds (in the case of two or more kinds, the total) of tetragonal zirconia structure stabilizing elements (Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ca, Mg), and (C) a 25-80 atom% iron element (in condition that Ni occupies an atom ratio of ≥0.6), and which is stabilized by taking even a part of the iron group element together with the stabilizing elements into a crystal structure; and mixed gas comprising natural gas and hydrogen is brought into contact with the catalyst, to thereby subject hydrocarbons having two or more carbon atoms to hydrocracking so as to be converted into methane.
Inventors:
Koji Hashimoto
Hiroyuki Takano
Naokazu Kumagai
Koichi Izumiya
Hiroyuki Shinomiya
Hiroyuki Takano
Naokazu Kumagai
Koichi Izumiya
Hiroyuki Shinomiya
Application Number:
JP2011267413A
Publication Date:
August 26, 2015
Filing Date:
December 06, 2011
Export Citation:
Assignee:
Hitachi Zosen Corporation
Koji Hashimoto
Koji Hashimoto
International Classes:
C07C4/06; B01J23/755; B01J37/18; C07C4/18; C07C9/04
Domestic Patent References:
| JP2010022944A | ||||
| JP2011206770A | ||||
| JP47040524B1 | ||||
| JP2001017860A |
Other References:
山崎倫昭 他,アモルファスNi-Zr-RE合金を前駆体とする二酸化炭素のメタネーション触媒の創製,材料と環境討論会講演集,1997年,44,第73-76頁
Michiaki YAMASAKI et al.,Compositional dependence of the CO2 methanation activity of Ni/ZrO2 catalysts prepared from aorphous,Applied Catalysis A: General,1997年,163,pp. 187-197
Michiaki YAMASAKI et al.,Compositional dependence of the CO2 methanation activity of Ni/ZrO2 catalysts prepared from aorphous,Applied Catalysis A: General,1997年,163,pp. 187-197
Attorney, Agent or Firm:
Morimoto International Patent Office
Sooo Suga
Sooo Suga
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