DEVELOPMENT OF THE PYROLYTIC FOULING TEST FOR ORGANIC REACTOR COOLANTS

Technical Report · Fri Nov 30 04:00:00 EST 1962

OSTI ID:4729478

Benson, P R

A test was developed for the rapid screening of organic reactor coolants for their film-forming potentials using a pyrolytic fouling apparatus employing a vertical, electrically heated tube in a pool of coolant. Screening experiments using this test showed that pyrolytic fouling of terphenyl mixtures increases with concentration of inorganic materials, concentration of certain organic materials, including oxidation products; and heater surface temperature. Fouling deposits were reduced by removing particulates and nonvolatile or reactive compounds by means of distillation and adsorption, removing particulates by means of filtration and centrifugation, increasing turbulence at the heater surface by boiling, pressurizing with H/sub 2/, and using decalin as an additive. The weight of film deposited was not affected by the type of test heater material which included types 321 and 410 stainless steel, Au, and Al. (auth)

• Research Organization: Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
• DOE Contract Number: AT(11-1)-GEN-8
• NSA Number: NSA-17-007561
• OSTI ID: 4729478
• Report Number(s): NAA-SR-7362
• Country of Publication: United States
• Language: English

Related Subjects

ADSORPTION
ALUMINUM
BOILING
CENTRIFUGATION
CHEMICAL REACTIONS
CLEANING
COMPOUNDS
COOLANT LOOPS
CURRENTS
DECALIN
DISTILLATION
FAILURES
FILMS
FILTERS
FLUID FLOW
FOULING
GOLD
HEAT TRANSFER
HEATING
HIGH TEMPERATURE
HYDROGEN
IMPURITIES
MATERIALS TESTING
MEASURED VALUES
MOCKUP
ORGANIC COMPOUNDS
ORGANIC COOLANT
OXIDATION
POLYPHENYLS
PRESSURE
RADIATION EFFECTS
REACTOR TECHNOLOGY
REACTORS
RESIDUES
STAINLESS STEELS
SURFACES
TUBES
TURBULENCE
VESSELS
VOLATILITY
WEIGHT