Nitrogen oxide absorption into water and dilute nitric acid in an engineering-scale sieve-plate column with plates designed for high gas-liquid interfacial area

Conference · Sun Jan 01 00:00:00 EST 1978

OSTI ID:6709104

Counce, R M; Groenier, W S; Klein, J A; Perona, J J

The absorption of gaseous NO/sub x/ compounds into water and dilute HNO/sub 3/ was studied in a three-stage sieve-plate column with plates designed for high gas-liquid interfacial area. The performance of the column was measured while several operating parameters were varied. The results of the study indicate the importance of three mechanisms in the absorption of gaseous NO/sub x/ (NO/sub 2/ + 2N/sub 2/O4 + NO) compounds: (1) the absorption of NO/sub 2//sup */ (NO/sub 2/ + 2N/sub 2/O4) which results in production of liquid HNO/sub 3/ and HNO/sub 2/; (2) the dissociation of the liquid HNO/sub 2/ into HNO/sub 3/ and gaseous NO; and (3) the gas-phase oxidation of NO to NO/sub 2/. A mathematical model based on these mechanisms was developed and is presented to explain the observed phenomena.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6709104
• Report Number(s): CONF-780819-16; TRN: 78-017056
• Resource Relation: Conference: 15. nuclear air cleaning conference, Boston, MA, USA, Aug 1978
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
FUEL REPROCESSING PLANTS
OFF-GAS SYSTEMS
NITROGEN OXIDES
CHEMISORPTION
CHEMICAL REACTION KINETICS
MATHEMATICAL MODELS
NITRIC ACID
SORPTIVE PROPERTIES
WATER
CHALCOGENIDES
CHEMICAL REACTIONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
NITROGEN COMPOUNDS
NUCLEAR FACILITIES
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
SORPTION
SURFACE PROPERTIES
050800* - Nuclear Fuels- Spent Fuels Reprocessing