Cryogenic cleaning process

摘要: A cryogenic liquid is used to directly or indirectly cool solid contaminants adhering apparatus surfaces effect a change in the physical characteristics of and thereby render them more susceptible removal operations. The direct technique contemplates providing source cryogen, contacting cryogen from thereof with contaminated at least partial bonding separation surface, effectively removing contaminant material, while indirect utilizing an existing system for circulating heated fluid within by preventing flow hot into conduit channels, selectively removably coupling adjacent channels series pattern parallel pattern, permitting allowing circulate therein predetermined period time manageable property material therefrom.