Regeneration of an aqueous solution from an acid gas absorption process by multistage flashing and stripping

dc.contributor.assigneeBoard of Regents, The University of Texas System
dc.creatorGary T. Rochelle
dc.date.accessioned2019-10-23T19:31:19Z
dc.date.available2019-10-23T19:31:19Z
dc.date.filed2004-03-04
dc.date.issued2011-03-08
dc.description.abstractAn acid gas such as carbon dioxide, hydrogen sulfide, or a mixture thereof is removed from gaseous streams using aqueous absorption and stripping processes. By replacing the conventional stripper used to regenerate the aqueous solvent and capture the acid gas with a multipressure stripper (51) that combines acid gas compression with stripping, less energy is consumed. The multipressure stripper is a multistage flash (52, 55, 59) in which the total vapor flow from each stage is compressed and fed to the bottom of the previous flash stage at a higher pressure. In this process, the heat in the water content of the vapor exiting each stage is utilized at a higher pressure in the previous stage. The described stripping process generates the acid gas at a higher pressure without operating the stripper at a higher temperature, thereby reducing the energy consumption of the system.
dc.description.departmentBoard of Regents, University of Texas System
dc.identifier.applicationnumber10548853
dc.identifier.patentnumber7901487
dc.identifier.urihttps://hdl.handle.net/2152/77047
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/4136
dc.publisherUnited States Patent and Trademark Office
dc.relation.ispartofUniversity of Texas Patents
dc.relation.ispartofUniversity of Texas Patents
dc.rights.restrictionOpen
dc.rights.restrictionOpen
dc.subject.cpcB01D53/1425
dc.subject.cpcB01D53/1456
dc.subject.cpcB01D53/18
dc.subject.cpcY02C10/06
dc.subject.uspc95/160
dc.subject.uspc95/163
dc.subject.uspc95/172
dc.subject.uspc95/191
dc.subject.uspc95/192
dc.subject.uspc95/207
dc.subject.uspc95/208
dc.subject.uspc95/235
dc.subject.uspc95/236
dc.subject.uspc96/234
dc.titleRegeneration of an aqueous solution from an acid gas absorption process by multistage flashing and stripping
dc.typePatent

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