DEA degradation mechanism
Journal Article
·
· Hydrocarbon Process.; (United States)
OSTI ID:6110446
Examines factors that increase diethanolamine (DEA) degradation, which reportedly depends on temperature, pressure, gas composition, amine concentration, pH of the amine solution and the presence of metal ions. Plant operators have tried to solve the problem by changing operating conditions and/or installing activated carbon filters. DEA degradation is frequently experienced in gas plants used for removing acidic gases such as carbon dioxide and hydrogen sulfide from light hydrocarbons. Experimental results reveal that degradation is governed by: solubility of CO/sub 2/ in the DEA solution; degree of dissociation of the DEA molecules in solution; interaction of DEA and CO/sub 2/ molecules and/or ionic complexes. Most, or all, these phenomena are affected by temperature, pressure, DEA concentration and pH. A series of tests to determine whether activated carbon is capable of removing impurities from partially degraded DEA solutions showed that this treatment did not remove any major degradation compounds from the solutions.
- Research Organization:
- The University of British Columbia, Vancover, BC
- OSTI ID:
- 6110446
- Journal Information:
- Hydrocarbon Process.; (United States), Journal Name: Hydrocarbon Process.; (United States) Vol. 61:10; ISSN HYPRA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACTIVATED CARBON
ADSORBENTS
AMINES
CARBON
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMATOGRAPHY
DECOMPOSITION
DISSOCIATION
ELEMENTS
ENERGY SOURCES
FILTERS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS CHROMATOGRAPHY
GAS FUELS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
ION EXCHANGE
NATURAL GAS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARAMETRIC ANALYSIS
PH VALUE
PRESSURE DEPENDENCE
QUANTITY RATIO
SEPARATION PROCESSES
SOLUBILITY
SULFIDES
SULFUR COMPOUNDS
TEMPERATURE EFFECTS
030300* -- Natural Gas-- Drilling
Production
& Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACTIVATED CARBON
ADSORBENTS
AMINES
CARBON
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMATOGRAPHY
DECOMPOSITION
DISSOCIATION
ELEMENTS
ENERGY SOURCES
FILTERS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS CHROMATOGRAPHY
GAS FUELS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
ION EXCHANGE
NATURAL GAS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARAMETRIC ANALYSIS
PH VALUE
PRESSURE DEPENDENCE
QUANTITY RATIO
SEPARATION PROCESSES
SOLUBILITY
SULFIDES
SULFUR COMPOUNDS
TEMPERATURE EFFECTS