Absorption system for separate recovery of carbon dioxide and hydrogen sulfide impurities

Patent · Tue Oct 07 04:00:00 EDT 1975

OSTI ID:7297122

Jakob, F

In a gas purification process gaseous impurities comprising carbon dioxide and hydrogen sulfide are scrubbed from gases with an organic polar solvent scrubbing agent. The process is conducted under superatmospheric pressure, and at a low temperature. The resultant loaded scrubbing agent is expanded to liberate a portion of the components dissolved therein, and after the expansion of the loaded solvent, the resultant expanded solvent is stripped with a stripping gas to remove the hydrogen sulfide and the resultant loaded stripping gas containing the hydrogen sulfide is scrubbed with hot-regenerated scrubbing agent to remove the hydrogen sulfide therefrom. (auth)

• Assignee: Linde Aktiengesellschaft
• Patent Number(s): US 3910777
• OSTI ID: 7297122
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
DIAGRAMS
FLOWSHEETS
FLUIDS
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
ORGANIC SOLVENTS
OXIDES
OXYGEN COMPOUNDS
PURIFICATION
RECOVERY
SCRUBBING
SOLVENTS
SULFIDES
SULFUR COMPOUNDS