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AssigneeYara International Asa
InventorsLino Giovanni PORRO, Ruud VAN BELZEN, Patrice MALO, Sven KOHNKE, Werner RUNGGER, Klaus WEIGL, Vincent DUPONCHEL
Estimating the term…
A method for producing a SNCR/SCR solution, comprising the steps of: a) reacting ammonia and carbon dioxide in a high pressure section, thereby obtaining an aqueous composition comprising urea and ammonium salts; b) processing the aqueous composition obtained in step a), thereby obtaining a first aqueous solution comprising urea, and a second aqueous solution comprising ammonium salts; and c) diluting the second aqueous solution comprising ammonium salts obtained in step b) with a third aqueous solution, thereby producing the SNCR/SCR solution. The present disclosure also provides the use of an aqueous stream comprising ammonium salts from a urea-producing plant for producing a SNCR/SCR solution.
A method for producing a selective non-catalytic reduction/selective catalytic reduction (SNCR/SCR) solution, comprising the steps of:
(canceled)
A urea-producing plant comprising:
A urea-producing plant comprising:
A method for adapting an existing urea-producing plant, comprising the steps of:
Dependencies are inferred from the claim text.