Abstract: Device for thermal energy exchange between a first medium flow and a second medium flow, including a heat exchanger that facilitates alternating of the direction of the media flows therethrough, a first supply duct for conducting the first medium flow connecting to the heat exchanger, a first exhaust duct for conducting the first medium flow connecting to the first exhaust duct, a second supply duct for conducting a second medium flow connecting to the heat exchanger, and a second exhaust duct for conducting the second medium flow connecting to the heat exchanger. The device also includes a first heat exchanger element placed in one of the ducts and a second heat exchanger element placed in one of the ducts, wherein the heat exchanger elements are both included in a Carnot circuit having an expansion device and a compressor. The heat exchanger exchanges both thermal energy and phase transition energy.

Abstract: The invention relates to a recuperator (7), comprising at least a recuperator unit with heat-exchanging channels (5, 6) extending parallel to each other, a first header (63) placed on a first side of the recuperator unit and having a triangular cross-section, one surface of which connects to a first end of the heat-exchanging channels (5, 6) of the recuperator unit, a second header (64) placed on the second side of the recuperator unit and having a triangular cross-section, one surface of which connects to the second side of the heat-exchanging channels (5, 6) of the recuperator unit, supply ducts (1, 4) extending to a second surface of the first and the second header (63, 64) and discharge ducts (2, 3) extending from the third surface of the first and the second header (63, 64), wherein the supply ducts (1, 4) and the discharge ducts (2, 3) extend transversely of the longitudinal direction of the heat-exchanging channels (5, 6), wherein the supply ducts (1, 4) and the discharge ducts (3, 4) extend on the sid

Abstract: A recuperator for transferring thermal energy from a warm gas flow to a cold gas flow, comprising: a first group of ducts with a first connection and a second connection; a second group of ducts with a third connection and a fourth connection, wherein the ducts of both groups extend mutually parallel; a first supply for supplying the cold gas flow to the first connection; a first discharge for discharging the cold gas flow from the second connection; a second supply for supplying the warm gas flow to the third connection; and a second discharge for discharging the warm gas flow from the fourth connection. The device provides temporarily and repeatedly alternating connections from the first supply to the fourth connection; the first discharge to the third connection; the second supply to the second connection; and the second discharge to the first connection.

Abstract: Device for thermal energy exchange between a first medium flow (15) and a second medium flow (16), comprising a heat exchanger (2), a first supply duct (3) for the conduction of the first medium flow connecting to the heat exchanger, a first exhaust duct (4), for conducting the first medium flow connecting to the first exhaust duct, a second supply duct (5) for conducting a second medium flow (16) connecting to the heat exchanger, and a second exhaust duct (6) for conducting the second medium flow (16) connecting to the heat exchanger, just as a first heat exchanger element (7) placed in one of the ducts, a second heat exchanger element (8) placed in one of the ducts, whereby the heat exchanger element are both included in a Carnot circuit that has an expansion device (11) and a compressor (10). The heat exchanger is set for exchange of both thermal energy and phase transition energy.

Abstract: The invention relates to a process for preparing an alkanone and/or alkanol by oxidizing an alkane with 3-30 C-atoms, using oxygen, to form an alkyl hydroperoxide, followed by a decomposition of the resulting alkyl hydroperoxide in the presence of a metal compound immobilized on a carrier, which carrier carries aliphatic or aromatic amine groups or sulphide groups. The process is preferably applied to cycloalkanes.