Patent ID: 7517447
Filing Date: 2009-04-14
Classification: B01D,B01J,C10G

Abstract:
1. A method comprising the step of: contacting a fluid including noxious sulfur-containing species with an effective amount of a sulfur scavenging composition comprising substantially monomeric aldehyde-amine adducts formed from a reaction of a molar excess of at least one aldehyde or aldehyde donor and at least one secondary amine or a primary amine having at least one sterically bulk substituent so that the adducts are substantially compounds derived from the reaction of a single aldehyde and a single amine so that the resulting adducts comprise amines bonded to three different groups where two of the groups can be a part of a ring structure and characterized by compounds of formulas (I), (II) or mixtures thereof: where R is a hydrogen atom (H) or a carbon-containing group, R where the CH