Patent ID: 6251165
Filing Date: 2001-06-26
Classification: B01D,C10L,Y02C

Abstract:
A process for recovering a solvent from a gas coming from a treating process using said solvent, the treating process allowing to obtain the gas at two different temperatures, a low temperature Ta and a high temperature Td, so that the temperature difference Td-Ta is sufficient to perform an adsorption step and a desorption step, characterized in that:a) a first solvent-containing gas stream is sent to an adsorption step, said gas being at a temperature Ta, at the end of this adsorption step the gas is practically solvent-free and the solvent is collected in a first adsorption means,b) a second gas stream at a temperature Td is sent, said second gas stream being solvent-free, to carry out desorption of a second adsorption means loaded with solvent during a previous step a), andc) said solvent is recovered and sent at least partly to a step of the treating process using the solvent.