[EN] PROCESS FOR THE REMOVAL OF CARBON DIOXIDE FROM 3,4-EPOXY-1-BUTENE PROCESS RECYCLE STREAMS<br/>[FR] PROCEDE DESTINE A ELIMINER LE DIOXYDE DE CARBONE DES COURANTS DE RECYCLAGE DE PROCESSUS A EPOXY-3,4-BUTENE-1
申请人:EASTMAN CHEM CO
公开号:WO2001098285A1
公开(公告)日:2001-12-27
Disclosed is a process for the efficient removal of carbon dioxide from a gas recycle system generated in an epoxidation process wherein 1,3-butadiene is selectively oxidized to 3,4-epoxy-1-butene. Carbon dioxide at low partial pressure is absorbed into an alkanolamine solution from a low pressure recycle gas stream containing high levels of oxygen. Also disclosed is a means for reclaiming the alkanolamine from a solution of a carbon dioxide-alkanolamine salt or adduct formed in the carbon dioxide removal process.