PRODUCTION UNIT, PRODUCTION METHOD FOR AMMONIA, AND CATALYST MATERIAL
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United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Oct 25, 2022
filing date -
Oct 25, 2022
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Abstract
A production unit 100 includes a production apparatus 20 including: a reaction tube U in which a catalyst material Q containing noble metal is housed; a first supply path R1 configured to supply a source gas (exhaust gas) G1 containing NOx and oxygen to the reaction tube U; a second supply path R2 configured to supply a reducing gas G2 not containing NOx to the reaction tube U; and a recovery path R3 configured to recover produced ammonia from the reaction tube U, and a control apparatus 30 configured to control the production apparatus 20, wherein the control apparatus 30 makes the production apparatus 20 perform a production process including: a first step of supplying the source gas G1 to the catalyst material Q to store NOx in the source gas G1 in the catalyst material Q, and a second step of stopping supply of the source gas G1 and then supplying the reducing gas G2 to the catalyst material Q to produce and recover ammonia from NOx stored in the catalyst material Q.
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