Absorption of CO/sub 2/ and/or H/sub 2/S utilizing solutions containing two different activators

Patent · Tue Feb 28 00:00:00 EST 1984

OSTI ID:6766135

Giammarco, G; Giammarco, P

The removal of CO/sub 2/ and mixtures thereof with H/sub 2/S from gaseous mixture containing same, is carried out by using an absorbing solution which comprises a first activating substance chosen from aminoacids and primary and secondary ethanolamines, which effects the initial absorption of CO/sub 2/ with formation of a carbamate, a second activating substance chosen from As/sub 2/O/sub 3/ and its derivatives, secondary ethanolamines and ammonia, which promotes the hydrolysis and decomposition of the carbamate as the latter forms, and a third substance of a basic nature, which effects the quantitative absorption of CO/sub 2/ or CO/sub 2/+H/sub 2/S.

• Assignee: EDB-84-115480
• Patent Number(s): US 4434144
• OSTI ID: 6766135
• Resource Relation: Patent Priority Date: Priority date 16 Nov 1978, Italy; Other Information: PAT-APPL-310256
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
CARBON DIOXIDE
ABSORPTION
HYDROGEN SULFIDES
NATURAL GAS
PURIFICATION
AMINO ACIDS
AMMONIA
ARSENIC OXIDES
CARBAMATES
CHEMICAL PREPARATION
ETHANOL
HYDROLYSIS
SORPTIVE PROPERTIES
ALCOHOLS
ARSENIC COMPOUNDS
CARBON COMPOUNDS
CARBON OXIDES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LYSIS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SOLVOLYSIS
SULFIDES
SULFUR COMPOUNDS
SURFACE PROPERTIES
SYNTHESIS
030300* - Natural Gas- Drilling
Production
& Processing