Method of scavenging oxygen from boiler waters with substituted quinolines.

摘要

Oxygen scavengers for boiler waters are based upon substituted quinoline compounds of the formula wherein R is methyl or ethyl. These compounds provide oxygen scavenging capabilities, metal passivating capabilities, and volatility such that condensate systems in an operating boiler are protected. The compounds may be formulated with other oxygen scavengers and other common treatment agents used in boiler waters, especially the volatile amine, such as morpholine and diethylhydroxylamine. The preferred compound is ethyoxyquin, i.e. 6-ethoxy-1,2,-dihydro-2,2,4-dihydroquinoline.