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Spray Freezing, Decanting, and Hydrolysis as Related to Secondary Refrigerant Freezing.

PB215036

Publication Date	1972
Personal Author	Johnson, W. E.; Fraser, J. H.; Gibson, W. E.; Modica, A. P.; Grossman, G.
Page Count	154
Abstract	The report describes research performed on a secondary refrigerant desalination process, specifically freezing, decanting and Freon hydrolysis. Research on a spray freezer is reported. High rates of heat-transfer between feed and refrigerant were effected in a finely dispersed well-mixed spray of the two fluids. The performance of a triplet nozzle configuration was studied from the viewpoint of production rate and permeability. Theory was developed to correlate and explain the experimental data. A theoretical model describes decanting of a stationary, initially uniform, mixture of Freon and water in a vertical column. The analysis provides a simple experimental method to determine droplet size distribution in a liquid-liquid dispersion band and measurement of its decanting rate. The solubility and hydrolysis rate of Freon 114 have been measured over a range of temperatures and pressures. A general theory was developed to predict the first order rate constant for hydrolysis of Freon refrigerants.
Keywords	Desalting Freezing Halohydrocarbons Decantation Spray nozzles Refrigerants Drops(Liquids) Ice Crystal growth Solubility Hydrolysis Washing Dispersions Direct freezing wash separation desalination Methane/dichloro-fluoro Methane/chloro-fluoro Ethane/dichloro-tetrachloro Cyclobutaine/octafluoro
Source Agency	Invalid Source Agency Code
NTIS Subject Category	99B - Industrial Chemistry & Chemical Process Engineering
Corporate Authors	Avco Systems Div., Wilmington, Mass.
Document Type	Technical Report
Title Note	Research and development progress rept.
NTIS Issue Number	197307
Contract Number	DI-14-30-2770

Spray Freezing, Decanting, and Hydrolysis as Related to Secondary Refrigerant Freezing.

Spray Freezing, Decanting, and Hydrolysis as Related to Secondary Refrigerant Freezing.
PB215036

Publication Date	1972
Personal Author	Johnson, W. E.; Fraser, J. H.; Gibson, W. E.; Modica, A. P.; Grossman, G.
Page Count	154
Abstract	The report describes research performed on a secondary refrigerant desalination process, specifically freezing, decanting and Freon hydrolysis. Research on a spray freezer is reported. High rates of heat-transfer between feed and refrigerant were effected in a finely dispersed well-mixed spray of the two fluids. The performance of a triplet nozzle configuration was studied from the viewpoint of production rate and permeability. Theory was developed to correlate and explain the experimental data. A theoretical model describes decanting of a stationary, initially uniform, mixture of Freon and water in a vertical column. The analysis provides a simple experimental method to determine droplet size distribution in a liquid-liquid dispersion band and measurement of its decanting rate. The solubility and hydrolysis rate of Freon 114 have been measured over a range of temperatures and pressures. A general theory was developed to predict the first order rate constant for hydrolysis of Freon refrigerants.
Keywords	Desalting Freezing Halohydrocarbons Decantation Spray nozzles Refrigerants Drops(Liquids) Ice Crystal growth Solubility Hydrolysis Washing Dispersions Direct freezing wash separation desalination Methane/dichloro-fluoro Methane/chloro-fluoro Ethane/dichloro-tetrachloro Cyclobutaine/octafluoro
Source Agency	Invalid Source Agency Code
NTIS Subject Category	99B - Industrial Chemistry & Chemical Process Engineering
Corporate Authors	Avco Systems Div., Wilmington, Mass.
Document Type	Technical Report
Title Note	Research and development progress rept.
NTIS Issue Number	197307
Contract Number	DI-14-30-2770