Process for recovering acidic gases

Patent · Tue Sep 26 04:00:00 EDT 1989

OSTI ID:7247246

Riggs, Jr, O L

This patent describes an improvement in a continuous process for recovering carbon dioxide from a carbon dioxide-rich gas stream. The gas stream is contacted with an aqueous alknolamine solution in an absorption section contained in an absorption zone to produce a carbon dioxide-lean gaseous overhead stream and a carbon dioxide-rich liquid effluent stream. The carbon dioxide-rich effluent stream is heated in a regeneration zone to produce a carbon dioxide-rich gaseous overhead stream and a carbon dioxide-lean liquid effluent stream. The carbon dioxide-lean liquid effluent stream comprising a regenerated aqueous alkanolamine solution. The regenerated aqueous alkanolamine solution is returned to and introduced into the absorption zone.

• Assignee: Kerr McGee Chemical Corp., Oklahoma City, OK
• Patent Number(s): US 4869984
• Application Number: PPN: US 7-190838A
• OSTI ID: 7247246
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ABSORPTION
AIR POLLUTION CONTROL
AMINES
AQUEOUS SOLUTIONS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CONTROL
DISPERSIONS
GASEOUS WASTES
MIXTURES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
REMOVAL
SEPARATION PROCESSES
SOLUTIONS
WASTES