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Title: An experimental study of the volatility of ammonium chloride from aqueous solutions to high temperatures

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (United States)
Sponsoring Org.:
EPRI; Electric Power Research Inst., Palo Alto, CA (United States)
OSTI Identifier:
5275757
Report Number(s):
CONF-911088-1
ON: DE91017875
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Conference
Resource Relation:
Conference: 52. international water conference, Pittsburgh, PA (United States), 21-23 Oct 1991
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, 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

Citation Formats

Simonson, J M, and Palmer, D A. An experimental study of the volatility of ammonium chloride from aqueous solutions to high temperatures. United States: N. p., 1991. Web.
Simonson, J M, & Palmer, D A. An experimental study of the volatility of ammonium chloride from aqueous solutions to high temperatures. United States.
Simonson, J M, and Palmer, D A. 1991. "An experimental study of the volatility of ammonium chloride from aqueous solutions to high temperatures". United States.
@article{osti_5275757,
title = {An experimental study of the volatility of ammonium chloride from aqueous solutions to high temperatures},
author = {Simonson, J M and Palmer, D A},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/5275757}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}

Conference:
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