Proceso donde se sintetiza amoniaco en una planta de amoniaco urea donde se usa una corriente de gas de purga generada en la seccion de urea como fuente de amoniaco para la reduccion catalitica selectiva de oxidos de nitrogeno en humos de combustion emitidos por la seccion de amoniaco.

摘要

An ammonia-urea plant where purge gas stream (3) generated in the urea section is used as ammonia source for selective catalytic reduction of nitrogen oxides in combustion fumes (4) which are emitted by the ammonia section; a related process and a method for modification of an ammonia-urea plant are also disclosed.