Metal chrysotile methane synthesis catalyst
AssigneeGulf Research & Development Company
InventorsThaddeus P. Kobylinski, Harold E. Swift
Life of this patent
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Abstract
The conversion of carbon monoxide and hydrogen to produce methane is catalyzed by a layered complex metal silicate composition characterized as having repeating units of the structural formula [(1-x)Ni.sup.a + xRu.sup.b ].sub.n (OH).sub.4 Si.sub.2 O.sub.5.wH.sub.2 O where x is a number from 0 to 1, this number expressing the atomic fraction of the metals nickel and ruthenium, a is the valence of nickel, b is the valence of ruthenium, n is a number equal in value to that defined by the ratio 6/[a(1-x) + bx] And w is a number ranging from 0 to 4. Nickel chrysotile is the preferred catalyst.
Claims9
A process for the production of methane which comprises
- contacting a charge stock comprising hydrogen and at least one carbon oxide selected from the group consisting of CO and CO.sub.2 wherein the molar ratio of hydrogen to combined carbon oxides is at least 2:1 under methanation conditions with a catalyst comprising a metal silicate characterized as having repeating units having the structural formula:
- [(1-x)Ni.sup.a + xRu.sup. b ].sub.n (OH).sub.4 Si.sub.2 O.sub.5.wH.sub.2 O
- where x is a number from 0 to 1, this number expressing the atomic fraction of the metals nickel and ruthenium, a is the valence of nickel, b is the valence of ruthenium, n is a number equal in value to that defined by the ratio
- 6/[ a(1-x) + bx]
- and w is a number ranging from 0 to 4.
Dependencies are inferred from the claim text.