Process for direct urea injection with selective catalytic reduction (SCR) for NOx reduction in hot gas streams and related systems and assemblies

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United States of America Patent

PATENT NO 11242789
APP PUB NO 20210047955A1
SERIAL NO

17077634

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A boiler or other fired vessel includes a housing with a burner at one end, a furnace downstream of the burner, a convection section downstream of the furnace and a flue gas outlet downstream of the convection section. A first means for loading a reducing agent comprising at least two injectors is located downstream of the furnace. A second means for loading a reducing agent is located downstream of the first means for loading a reducing agent. A selective catalytic reduction catalyst is located either downstream of the second means for loading a reducing agent or adjacent the second means for loading a reducing agent such that the catalyst is provided to the boiler or other fired vessel approximately simultaneously with the reducing agent from the second means for loading the reducing agent.

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Patent Owner(s)

  • R. F. MACDONALD CO.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Feliz, Anthony Cucamonga, US 2 2
MacDonald, Michael David Modesto, US 2 2
Muzio, Lawrence J Laguna Niguel, US 10 259
Velasco, Marco Antonio Modesto, US 2 2

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