Patent ID: 7794583

Claim:
A synergistic system for protecting a portion of a pre-existing tank, enclosure, or container, the system comprising: (i) a pre-existing tank, enclosure, or container having a bottom or double bottom, wherein a pre-existing tank, enclosure, or container has an area located below the bottom, or double bottom, thereof; (ii) at least one volatile or vapor phase corrosion inhibitor, wherein at least a portion of the at least one volatile or vapor phase corrosion inhibitor is located in at least one vapor space that exists in the area located below the bottom, or double bottom, of a pre-existing tank, enclosure, or container, and wherein the at least one volatile or vapor phase corrosion inhibitor is selected so as to prevent or reduce the amount of one or more corrosive compounds in the at least one vapor space that exists in the area located below a bottom, or double bottom, of a pre-existing tank, enclosure, or container; (iii) at least one soluble corrosion inhibitor, wherein the at least one soluble corrosion inhibitor is contained within a suitable solvent, wherein the at least one soluble corrosion inhibitor-solvent combination is located in a portion of the area located below the bottom, or double bottom, of a pre-existing tank, enclosure, or container, and wherein the at least one soluble corrosion inhibitor is selected so as to prevent or reduce the amount of one or more corrosive compounds in at least one liquid that is contained, or located, within the area located below a bottom, or double bottom, of a pre-existing tank, enclosure, or container; and (iv) at least one cathodic-based corrosion prevention or mitigation system, wherein the at least one cathodic-based corrosion prevention or mitigation system is located in the area located below the bottom, or double bottom, of a pre-existing tank, enclosure, or container, and wherein the at least one cathodic-based corrosion prevention or mitigation system is designed to prevent or reduce the amount of corrosion that occurs in at least one metal bottom, or double bottom, portion of a pre-existing tank, enclosure, or container, wherein the at least one volatile or vapor phase corrosion inhibitor and the at least one soluble corrosion inhibitor are different chemical compounds.