Degradation of aqueous DEA solutions in heat transfer tubes

Conference · Tue Jan 01 00:00:00 EST 1985

OSTI ID:5771599

Meisen, A; Chakma, A

Experiments were performed on the degradation of aqueous diethanolamine (DEA) solutions passing through a coiled heat transfer tube (2.0032 mm ID, 3.175 mm OD, 4.8 m long) immersed in a constant temperature bath. The operating conditions were: DEA flow rate 0.011 to 0.0172 L/s, DEA concentration 20 to 40 wt%, DEA temperature 60 to 200/sup 0/C, CO/sub 2/ partial pressure 1.38 to 4.18 MPa. The degradation rate was found to increase with temperature, DEA concentration and CO/sub 2/ partial pressure; it decreased with solution flow rate. The degradation was accompanied by the formation of a fouling deposit. A simple mathematical model is presented for predicting DEA degradation.

• OSTI ID: 5771599
• Report Number(s): CONF-841121-
• Resource Relation: Conference: AIChE annual meeting, San Francisco, CA, USA, 25 Nov 1984
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
42 ENGINEERING
AMINES
DECOMPOSITION
HEAT EXCHANGERS
FOULING
AQUEOUS SOLUTIONS
CARBON DIOXIDE
FLOW RATE
HEAT TRANSFER
HIGH TEMPERATURE
MATHEMATICAL MODELS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
PARTIAL PRESSURE
QUANTITY RATIO
RESEARCH PROGRAMS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DISPERSIONS
ENERGY TRANSFER
MIXTURES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SOLUTIONS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
421000 - Engineering- Combustion Systems