Catalyst for ammonia decomposition, method of preparing the catalyst, and method of ammonia decomposition using the catalyst
AssigneeSK Innovation Co., Ltd.
InventorsJu Hwan IM, Jong Baek SUNG, Jae Suk CHOI, Seung Woo LEE, Chang Q LEE
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Abstract
In a method of preparing an ammonia decomposition catalyst according to embodiments of the present disclosure, a mixture of a metal oxide including lanthanum and a heterogeneous metal and aluminum oxide is prepared, the mixture was subjected to steam treatment to form a carrier, and a catalytically active metal is supported on the carrier to prepare an ammonia decomposition catalyst. The ammonia decomposition catalyst according to embodiments of the present disclosure is prepared by the above-described preparation method.
Claims18
A method of preparing a catalyst for ammonia decomposition, the method comprising:
- preparing a mixture of a lanthanum and heterogeneous metal-containing metal oxide and an aluminum oxide;
- performing steam treatment on the mixture to form a carrier;
- and
- supporting a catalytically active metal on the carrier.
An ammonia decomposition process, the process comprising:
- decomposing ammonia into hydrogen and oxygen in the presence of a catalyst comprising:
- a carrier comprising a lanthanum and aluminum-containing complex oxide,
- an heterogeneous metal oxide having a porous structure or a structural defect;
- and
- a catalytically active metal supported on the carrier,
- wherein a content of the catalytically active metal supported on the heterogeneous metal oxide is greater than a content of the catalytically active metal supported on the lanthanum and aluminum-containing complex oxide,
- wherein the carrier has a specific surface area of 80 m2/g to 200 m2/g, and
- wherein the lanthanum and aluminum-containing complex oxide has a perovskite crystal structure.
Dependencies are inferred from the claim text.