Ionic liquid additives for use as an absorbent in absorption chillers
AssigneeYazaki Corporation
InventorsSatyabrata Raychaudhuri, Amirhossein Mehrkesh, George G. Tamas, Stefan Maat, Alberto Coronas Salcedo, Daniel Salavera Muñoz, Juan Prieto Gonzalez
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Abstract
This invention relates to using an imidazolium bromide ionic liquid as an additive to lithium bromide in the absorbent for an absorption chiller. The imidazolium bromide ionic liquid is useful to increase the working region and to lower the risk of crystallization in an absorption chiller. The invention provides an absorption chiller comprising a mixture of a refrigerant and an absorbent, and the absorbent comprises lithium bromide and one or more imidazolium bromide ionic liquids.
Claims13
An absorption chiller comprising an absorber compartment and a generator compartment, wherein both compartments comprise a refrigerant and an absorbent, the absorbent comprises 91-97% by weight of LiBr and 3-9% by weight of 1 butyl-3-methylimidazolium bromide.
A working pair for use in an absorption chiller, comprising an absorbent and a refrigerant, wherein the absorbent comprises 91-97 wt % of LiBr and 3-9 wt % of 1 butyl-3-methylimidazolium bromide.
An absorption chiller comprising an absorber compartment and a generator compartment, wherein both compartments comprise a refrigerant and an absorbent, the absorbent comprises 95% by weight of LiBr, and 5% by weight of 1-butyl-2,3-dimethylimidazolium bromide or 1,3-dimethylimidazolium bromide.
A working pair for use in an absorption chiller, comprising an absorbent and a refrigerant, wherein the absorbent comprises 95% by weight of LiBr, and 5% by weight of 1-butyl-2,3-dimethylimidazolium bromide or 1,3-dimethylimidazolium bromide.
Dependencies are inferred from the claim text.