|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||95/099 ; 95/106 ; 95/143|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 24 인용 특허 : 7|
Organic solvents are removed from air by adsorption on fixed beds of activated carbon. Each carbon bed is periodically regenerated by heating it in two distinct steps and then by cooling it in two steps with a circulated inert gas stream. During the first step of heating a portion of the water is removed from the inert gas by molecular sieves or preferably by chilling the inert gas to below 10.degree. C. In a second step of heating the essentially water-free liquid solvent is recovered by chilling the inert gas. The first step of cooling of a bed is over...
[ What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims:] [1.] A thermal swing adsorption process for solvent recovery, comprising the steps of applying at least three adsorbers with fixed beds of activated carbon; and subjecting each of the beds in overlapping cycles periodically to a sequence of at least the following steps:a) passing solvent containing air to a bed where the solvent is adsorbed,b) heating the bed in a first heating step with a hot gas coming from another bed which is being cooled,c) p...