The invention refers to a composition comprising a mixture of difluoromethane, propylene, and a non-halogenated hydrocarbon refrigerant gas selected from dimethylether and propane, wherein: a) the amount of difluoromethane is comprised from 5 to 27% by weight of the total weight of the refrigerant gas combination b) the amount of the non-halogenated hydrocarbon compound is comprised from 2 to 10% by weight of the total weight of refrigerant gas combination c) the amount of propylene is comprised from 63 to 93% by weight of the total weight of refrigerant gas combination and being the sum of the components of the refrigerant gas combination of 100% by weight a refrigerant system containing thereof and a refrigerant process using the composition.
