Refrigerant fluid crystallization control and prevention
AssigneeArizona Board of Regents
InventorsCharles A. Angell, Vesselin Velikov, Hemalata Senapati
Life of this patent
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Abstract
Methods of controlling crystallization of aqueous lithium halide refrigerant fluids utilizing an organic counter cation-containing salt material effective to depress the crystallization temperature of the refrigerant fluid and corresponding refrigerant fluids.
Claims46
A method of controlling crystallization in a refrigerant fluid comprising water and at least one lithium halide selected from the group consisting of lithium chloride, lithium bromide, lithium iodide and mixtures thereof, said method comprising the step of:
- adding to the refrigerant fluid a salt material including an organic counter cation effective to suppress crystallization of the refrigerant fluid.
A method of controlling crystallization in a refrigerant fluid comprising water and at least one lithium halide selected from the group consisting of lithium chloride, lithium bromide, lithium iodide and mixtures thereof, said method comprising the step of:
- adding to the refrigerant fluid a lithium salt and an organic salt material formed of a basic anion selected from the group consisting of chloride and bromide and an alkyl ammonium counter cation, the lithium salt and organic salt effective to synergistically suppress crystallization of the lithium halide.
A refrigerant fluid comprising:
- an aqueous lithium halide solution and
- a salt material formed of a basic anion selected from the group consisting of chloride and bromide and an organic counter cation effective to inhibit crystallization of the refrigerant fluid.
Dependencies are inferred from the claim text.