An experimental study of the volatility of ammonium chloride from aqueous solutions to high temperatures
The EPRI fossil plant cycle chemistry monitoring project has provided detailed chemical analytical results for the water and steam cycles of four US power plants. The results for the calculated chemical carryover of chloride were correlated with the expected ammonium chloride volatility in those plants using all-volatile treatment (AVT). It was found that chloride levels observed in the high-temperature steam are significantly higher than predicted on the basis of the commonly-used plots of solute volatility ratios, expressed as log {l brace}(ppm in vapor)/(ppm in liquid){r brace} plotted against the logarithm of the density ratio of steam to liquid. The goal of the present project, undertaken at the request of EPRI, is to determine quantitatively the partitioning of chloride over aqueous solutions under conditions similar to those of AVT steam generators. A further goal is the determination of liquid-vapor partitioning ratios at lower temperatures, appropriate to the conditions found in steam turbines, and particularly those temperature and pressure conditions near the Wilson line.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- EPRI; Electric Power Research Inst., Palo Alto, CA (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5275757
- Report Number(s):
- CONF-911088-1; ON: DE91017875
- Resource Relation:
- Conference: 52. international water conference, Pittsburgh, PA (United States), 21-23 Oct 1991
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMMONIUM CHLORIDES
VOLATILITY
AQUEOUS SOLUTIONS
CHEMICAL REACTIONS
HIGH TEMPERATURE
LIQUIDS
VAPORS
AMMONIUM COMPOUNDS
AMMONIUM HALIDES
CHLORIDES
CHLORINE COMPOUNDS
DISPERSIONS
FLUIDS
GASES
HALIDES
HALOGEN COMPOUNDS
MIXTURES
SOLUTIONS
400201* - Chemical & Physicochemical Properties