CORROSION CONTROL IN AMMONIA EXTRACTION BY AIR SPARGING

摘要

The present invention relates to reduction of corrosion. The present invention includes a method of decreasing corrosion during ammonia extraction. The method includes performing a process to extract ammonia using ammonia extraction equipment. The ammonia extraction equipment includes an ammonia absorber, an ammonia desorber, and an aqueous solution. The aqueous solution includes an acid or an ammonium salt thereof. The method also includes sparging an oxygen-containing gas into the solution in the ammonia absorber, the ammonia desorber, or therebetween. The invention also provides a system that can perform the method.

主权项

1. A method of decreasing corrosion during ammonia extraction, comprising:
performing a process to extract ammonia using ammonia extraction equipment comprising an ammonia absorber, ammonia desorber, and an aqueous solution comprising an acid or an ammonium salt thereof; and sparging a gas comprising oxygen into the solution in at least one of the ammonia absorber, the ammonia desorber, and therebetween.