Resumen
The invention relates to an adiabatic absorber (1) for an absorption machine, comprising: a first channel (2a) for a vapour-phase refrigerant; a second channel (2b) for a vapour-phase refrigerant; and a plurality of micro-channels (3) for a liquid phase solution, separated from one another by thin walls (4) and enclosed between the first (2a) and second (2b) channels, such that one microporous membrane (5) is disposed between the plurality of micro-channels (3) and the first channel (2a) and another microporous membrane (5) is disposed between the plurality of micro-channels (3) and the second channel (2b). The microporous membranes (5) are designed to allow the passage of the vapour-phase refrigerant, but to prevent the passage of the liquid-phase solution.