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AssigneesNational University Corporation Kumamoto University, Toyota Jidosha Kabushiki Kaisha
InventorsShinichi Takeshima, Masato Machida
Estimating the term…
A sulfur trioxide decomposition catalyst, in particular, a sulfur trioxide decomposition catalyst capable of lowering the temperature required when producing hydrogen by an S—I cycle process is disclosed. A sulfur trioxide decomposition catalyst that includes a composite oxide of tungsten, vanadium and at least one metal selected from the group consisting of transition metal and rare earth elements is provided. Also, a sulfur dioxide production process that includes decomposing sulfur trioxide into sulfur dioxide and oxygen by using the sulfur trioxide decomposition catalyst above is provided. Furthermore, a hydrogen production process, wherein the reaction of decomposing sulfur trioxide into sulfur dioxide and oxygen by an S—I cycle process is performed by the above-described sulfur dioxide production process is provided.
(canceled)
The process as claimed in claim 10,
The process as claimed in claim 10, wherein in said composite oxide, the atom ratio between said at least one metal and vanadium is from 1:0.1 to 1:10.
The process as claimed in claim 10, wherein in said composite oxide, the atom ratio between said at least one metal and tungsten is from 1:0.01 to 1:1.
The process as claimed in claim 10, wherein said composite oxide is supported on a support.
(canceled)
A sulfur dioxide production process comprising decomposing sulfur trioxide into sulfur dioxide and oxygen by using a sulfur trioxide decomposition catalyst including a composition oxide of vanadium, tungsten and at least one metal selected from the group consisting of transition metal and rare earth elements.
Dependencies are inferred from the claim text.