Patent ID: 7223362
Filing Date: 2007-05-29
Classification: A62D,B01F,C09K,C11D,Y10S

Abstract:
1. A method for suppressing production of methane and/or ammonia vapors by a petroleum or petroleum-based product or other material undergoing degradation or decay and releasing methane and/or ammonia vapors, comprising applying to said product or material a composition comprising: (a) a nonionic primary surfactant comprising an ethoxylated sorbitol oleate; (b) a nonionic secondary surfactant selected from the groups consisting of linear ethoxylated secondary alcohols, polyoxyethylene aryl ethers, ethoxylated sorbitan monolaurates, ethoxylated fatty acid amides and ethoxylated fatty acids; wherein said nonionic secondary surfactant contains about 7 moles to about 26 moles of ethylene oxide and comprising from about 20 to about 36 weight percent of said composition, and wherein said nonionic secondary surfactant is capable of stabilizing and solubilizing said nonionic primary surfactant such that said composition has a hydrophilic/lipophilic balance between about 12.0 and about 13.5; and (c) water.