公开(公告)号：US11097952B2

公开(公告)日：2021-08-24

申请号：US16435056

申请日：2019-06-07

Applicant: Fluor Technologies Corporation

Inventor： Thomas K. T. Chow ,  Ryan Y. D. Chow ,  Ghaith Aljazzar ,  Denny Li

IPC: C01B32/50 ,  B01D53/14 ,  B01D53/18 ,  B01D53/26 ,  B01D53/46 ,  B01D53/75 ,  B01D53/86

Abstract: Processes and systems for oxygen-enhanced Claus carbon dioxide recovery are disclosed. Oxygen is fed to a sulfur recovery unit instead of air. The tail gas is fed to a tail gas treatment unit which produces a treated tail gas, and the treated tail gas is processed in a carbon dioxide recovery unit to produce a carbon dioxide product. A method for retrofitting an existing sulfur recovery unit and tail gas treatment unit so as to recover the carbon dioxide product is also disclosed.

公开(公告)号：US09821267B2

公开(公告)日：2017-11-21

申请号：US14508758

申请日：2014-10-07

Applicant: FLUOR TECHNOLOGIES CORPORATION

Inventor： Curt Graham ,  Garry Jacobs ,  Jesus Cabrera ,  Ghaith Aljazzar

IPC: C10G45/08 ,  B01D53/14 ,  C01B17/16

CPC classification number: B01D53/1493 ,  B01D53/1418 ,  B01D53/1425 ,  B01D53/1456 ,  C01B17/162

Abstract: Elemental sulfur carrying capacity of a hydrocarbonaceous solvent is improved by first loading the solvent with sulfur and subsequent hydrotreatment under conditions that convert at least some of the elemental sulfur in the sulfur loaded solvent to hydrogen sulfide while preserving at least 95% of the monoaromatic and polyaromatic components in the solvent.