Abstract: The present invention relates to a cryocooler suitable for gas liquefaction applications, that comprises a coldhead (1) with one or more refrigeration stages (2, 3); further comprising: a refrigerator compressor (4) for distributing compressed gas-phase cryogen inside the coldhead (1); a heat exchanging coil (9) arranged at least partially around the external region of the coldhead (1); at least one extraction orifice (8) communicating a gas circulation circuit (5) inside the coldhead (1) with the heat exchanging coil (9); acting said extraction orifice/s (8) as pass-through port/s which allow the gas inside the coldhead (1) to flow through the inside of the heat exchanger coil (9) for exchanging heat with the exterior thereof, and wherein the heat exchanging coil (9) is adapted to connect and redirect the gas to one return port (8?) connected to the gas circulation circuit (5).

Abstract: The present invention relates to a cryogen-gas liquefaction system (1) and method comprising: a storage container (2) comprising a liquid storage portion (3) and a neck portion (4) with a liquefaction region (8) above said bath (7); a coldhead (9) arranged at the neck portion (4) comprising one or more refrigeration stages (10, 11); a gas intake module (12) containing an amount of gas-phase cryogen for its introduction into the storage container (2); and a pressure control mechanism (13) for controlling the cryogen gas pressure within the liquefaction region (8) of the storage container (2).

Abstract: The present invention describes a diaphragm comprising SPEEK for alkaline electrolysis with a first layer having micropores and a second layer of macroporous channels which start at the contact surface between the first and the second layer then extending and forming the outer surface of the second layer, where said macroporous channels increase in section and change direction as they approach said outer surface of the second layer, and where the walls of the macrochannels are in turn macroporous. The invention also describes a production method for producing the diaphragm comprising the use of the chemically induced phase separation (CIPS) technique, and its use in alkaline electrolysis and in electrolyzers.

Abstract: The present invention describes a diaphragm comprising SPEEK for alkaline electrolysis with a first layer having micropores and a second layer of macroporous channels which start at the contact surface between the first and the second layer then extending and forming the outer surface of the second layer, where said macroporous channels increase in section and change direction as they approach said outer surface of the second layer, and where the walls of the macrochannels are in turn macroporous. The invention also describes a production method for producing the diaphragm comprising the use of the chemically induced phase separation (CIPS) technique, and its use in alkaline electrolysis and in electrolyzers.