ORGANIC COOLANT REACTOR PROGRAM. Quarterly Report, April 1-June 30, 1961

Technical Report · Sat Sep 30 04:00:00 EDT 1961

OSTI ID:4822223

Significant films were deposited in a run with OMRE coolant at a surface temperature of 900 deg F in the large outof-pile circulating loop. Very heavy film was deposited when the Fe content was increased from 50 to 650 ppm with ferrocene. Film did not deposit from Santowax at the same conditions. A small irradiation cell, agitated by rocking, was put into service, andd conditions for deposition from OMRE coolant established. This cell, requiring much less coolant sample and giving a higher dose rate than the circulating loop, is well suited to investigations of effects of coolant composition and impurities on film deposition. The role of iron oxide particulate matter in film deposition was studied in further tests, and another demonstration of the prevention of film deposition by the complexing agent 8-hydroxyquinoline was made. It was established that irradiation of coolant produces a molecular species therein which in the presence of O rapidly corrodes Fe and increases the Fe content of the coolant rapidly. Pyrolytic tests were carried out in the convection- circulated loop. Conditions were established for the deposition of film from OMRE coolant and demonstrations of the effects of Fe and temperature on film were made. A static pyrolytic test unit was built, and demonstrated to be a valuable tool which will probably replace the convective loop. Studies on the nature of high boiler have yielded molecular weight distribution curves and demonstrated that material having a molecular weight in excess of 3000 is present in considerable quantity. A vacuum flashing test resulted in only 47% of the high boiIer volatilizing at 700 deg F and 0.2 mm Hg pressure. Radiolysis of the treated industrial oils being considered as coolants showed that the dealkylated, dewaxed heavy cycle oil formed less polymer than terphenyls, and gas yield was not as excessively increased as with the "alkyl phenanthrene'' coolant. Reclamation of high boilers by hydrocracking was found to proceed with better selectivity over a cobalt- vanadia on alunaina catalyst than over the CoMo/sub 4/ /sub 2/0/sub 3/- Al/sub 2/O/sub 3/ catalyst used in prior tests. Catalyst evalua tion showed that only a slight degree of cracking activity was desirable and therefore that acidic support matenials should not be used. In two stage hydrocracking, results of 72% selectivity at 89% over-all conversion were obtained. Testing continued on the hydraulic, mechanical and dynamic characteristics of the EOCR prototype control rod and control rod mechanism. Problems with release times, drop times, and excessive galling were encountered. Modifications in magnet and rod system design appear to have brought the release time under the design specifications of 0.050 sec. The time required for a full 36-in. drop is now about 0.860 sec. (auth)

• Research Organization: Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
• DOE Contract Number: AT(10-1)-205
• NSA Number: NSA-16-001247
• OSTI ID: 4822223
• Report Number(s): IDO-16713
• Country of Publication: United States
• Language: English

Related Subjects

ACIDS
ALKYL RADICALS
ALUMINUM OXIDES
AROMATICS
BORON OXIDES
CATALYSIS
COBALT ALLOYS
COBALT COMPOUNDS
COMPLEXES
CONTROL ELEMENTS
CONVECTION
COOLANT LOOPS
COOLANTS
CORROSION
CORROSION PROTECTION
DECOMPOSITION
DISTRIBUTION
EFFICIENCY
FAILURES
FILMS
GASES
HEAT TRANSFER
HETEROCYCLICS
HIGH TEMPERATURE
HYDRAULICS
HYDROXIDES
IMPURITIES
IRON
IRON OXIDES
IRRADIATION
MAGNETS
MATERIALS TESTING
MECHANICAL STRUCTURES
MOCKUP
MOLECULES
MOLYBDENUM COMPOUNDS
MOTION
MOTORS
OILS
OMRE
ORGANIC COOLANT
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN
PHENANTHRENE
PLANNING
POLYMERS
POLYPHENYLS
POWER PLANTS
PRESSURE
PYROLYSIS
REACTOR TECHNOLOGY