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Title: Transpiring wall supercritical water oxidation reactor salt deposition studies

Abstract

Sandia National Laboratories has teamed with Foster Wheeler Development Corp. and GenCorp, Aerojet to develop and evaluate a new supercritical water oxidation reactor design using a transpiring wall liner. In the design, pure water is injected through small pores in the liner wall to form a protective boundary layer that inhibits salt deposition and corrosion, effects that interfere with system performance. The concept was tested at Sandia on a laboratory-scale transpiring wall reactor that is a 1/4 scale model of a prototype plant being designed for the Army to destroy colored smoke and dye at Pine Bluff Arsenal in Arkansas. During the tests, a single-phase pressurized solution of sodium sulfate (Na{sub 2}SO{sub 4}) was heated to supercritical conditions, causing the salt to precipitate out as a fine solid. On-line diagnostics and post-test observation allowed us to characterize reactor performance at different flow and temperature conditions. Tests with and without the protective boundary layer demonstrated that wall transpiration provides significant protection against salt deposition. Confirmation tests were run with one of the dyes that will be processed in the Pine Bluff facility. The experimental techniques, results, and conclusions are discussed.

Authors:
; ; ;  [1]
  1. and others
Publication Date:
Research Org.:
Sandia Labs., Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States); Department of Defense, Washington, DC (United States)
OSTI Identifier:
415340
Report Number(s):
SAND-96-8255
ON: DE97050467; TRN: 97:000104
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Sep 1996
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; INDUSTRIAL WASTES; WASTE PROCESSING; ARKANSAS; MILITARY FACILITIES; WASTE PROCESSING PLANTS; BENCH-SCALE EXPERIMENTS; HAZARDOUS MATERIALS

Citation Formats

Haroldsen, B L, Mills, B E, Ariizumi, D Y, and Brown, B G. Transpiring wall supercritical water oxidation reactor salt deposition studies. United States: N. p., 1996. Web. doi:10.2172/415340.
Haroldsen, B L, Mills, B E, Ariizumi, D Y, & Brown, B G. Transpiring wall supercritical water oxidation reactor salt deposition studies. United States. https://doi.org/10.2172/415340
Haroldsen, B L, Mills, B E, Ariizumi, D Y, and Brown, B G. 1996. "Transpiring wall supercritical water oxidation reactor salt deposition studies". United States. https://doi.org/10.2172/415340. https://www.osti.gov/servlets/purl/415340.
@article{osti_415340,
title = {Transpiring wall supercritical water oxidation reactor salt deposition studies},
author = {Haroldsen, B L and Mills, B E and Ariizumi, D Y and Brown, B G},
abstractNote = {Sandia National Laboratories has teamed with Foster Wheeler Development Corp. and GenCorp, Aerojet to develop and evaluate a new supercritical water oxidation reactor design using a transpiring wall liner. In the design, pure water is injected through small pores in the liner wall to form a protective boundary layer that inhibits salt deposition and corrosion, effects that interfere with system performance. The concept was tested at Sandia on a laboratory-scale transpiring wall reactor that is a 1/4 scale model of a prototype plant being designed for the Army to destroy colored smoke and dye at Pine Bluff Arsenal in Arkansas. During the tests, a single-phase pressurized solution of sodium sulfate (Na{sub 2}SO{sub 4}) was heated to supercritical conditions, causing the salt to precipitate out as a fine solid. On-line diagnostics and post-test observation allowed us to characterize reactor performance at different flow and temperature conditions. Tests with and without the protective boundary layer demonstrated that wall transpiration provides significant protection against salt deposition. Confirmation tests were run with one of the dyes that will be processed in the Pine Bluff facility. The experimental techniques, results, and conclusions are discussed.},
doi = {10.2172/415340},
url = {https://www.osti.gov/biblio/415340}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Sep 01 00:00:00 EDT 1996},
month = {Sun Sep 01 00:00:00 EDT 1996}
}