LUBRICATING OIL AND USES THEREOF

摘要

Herein disclosed is a lubricant oil or lubricant for the compressor of a refrigeration system which operates with a refrigerant comprising at least one component of the hydrocarbon (HC) group of refrigerants, (a) whereby the lubricant consists of at least 85 weight% of alkylbenzene having an average molecular weight of >= 160 g/mol and exhibiting a viscosity of 2.2 - 3.0 centistokes (cSt) at 40degC; optionally wherein the alkylbenzene consists of at least 85wt% of linear (straight chain) alkylbenzene, having an average molecular weight of >= 160 g/mol and exhibiting a viscosity of 2.2 - 3.0 centistokes (cSt) at 40 degC; (b) or alternatively whereby the lubricant consists of at least 85 weight% of alkylbenzene having an average molecular weight of >= 190 g/mol and having a viscosity of 2.5 - 3.5 cSt at 40 degC; optionally wherein the alkylbenzene consists of at least 85wt% of linear (straight chain) alkylbenzene, having an average molecular weight of >= 190 g/mol and exhibiting a viscosity of 2.5 - 3.5 centistokes (cSt) at 40 degC.