Nikki-Universal Co., Ltd.

Tomoo Ikoma

Yoshiki Nakano

Takanobu Sakurai

Toshiya Nashida

Provided is an ammonia decomposition catalyst that exhibits high durability while maintaining high ammonia decomposition activity and low emissions of nitrogen oxides, for example, even under an atmosphere with a steam concentration of about 10% by volume. An ammonia decomposition catalyst capable of decomposing ammonia contained in an exhaust gas, the catalyst comprising an inorganic oxide loaded with an alloy containing Pt and Pd, and a zeolite.

Catalyst for ammonia decomposition and exhaust gas treatment method

The present invention provides a catalyst composition which can decompose an organic nitrogen compound at a relatively low temperature to convert the compound to Nand render it harmless in the purification of an exhaust gas containing the compound (nitrogen-based exhaust gas); a catalyst containing the catalyst composition; a method for producing the catalyst; and an exhaust gas purification apparatus containing the catalyst. By using a catalyst composition formed by mixing copper oxide particles and zeolite particles, an organic nitrogen compound and/or ammonia can be converted to Nhighly selectively. The catalyst composition of the present invention may further contain a manganese oxide and/or a precious metal.

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Hiratsuka, Japan

Tomoo Ikoma