A system comprising an electrolyser stack connected to a water/gas separation vessel, via an inlet and an outlet pipes, wherein the separation vessel is adapted to passively separate the water and gas; the separation vessel contains a heat exchanger; and the separation vessel is constructed from a polymer material.

Disclosed is a process for preparing adiponitrile from acrylonitrile in an electrolytic cell. An aqueous electrolyte comprising acrylonitrile converts to adiponitrile in the presence of a solid anode and in the absence of a solid cathode. The cathode comprises gas plasma.

The present invention relates to an SOEC system (1), comprising a fuel cell stack (2) having a gas side (3) and an air side (4), and an ejector (5) for supplying a process fluid to a gas inlet (6) on the gas side (3), wherein the ejector (5) comprises a primary inlet (7), for introducing a water-containing primary process fluid through a primary line (8) of the SOEC system (1) into a primary portion (9) of the ejector (5), and a secondary inlet (10), for introducing recirculated secondary process fluid through a recirculation line (11) of the SOEC system (1) from a gas outlet (12) on the gas side (3) into a secondary portion (13) of the ejector (5), wherein the SOEC system (1) further comprises a control gas supply portion (14) for supplying control gas into the primary portion (9) and into the secondary portion (13) in order to control a pressure and/or mass flow in the primary portion (9) and in the secondary portion (13), and wherein the control gas supply portion (14) comprises a valve arrangement (19, 20) for controlling the pressure and/or the mass flow in the primary portion (9) and in the secondary portion (13).

The invention further relates to a method for operating an SOEC system (1) according to the invention.

An electrochemical cell of an electrochemical hydrogen compressor is provided with a first flow field member having a hydrogen gas flow field and a second flow field member having a water channel. The first flow field member is located between the anode electrode and the anode separator. The second flow field member is located between the anode electrode and the first flow field member. A first porous member is located between the first flow field member and the second flow field member. A second porous member is located between the second flow field member and the anode electrode.

A system includes a high temperature electrolyser, a first line for supplying the electrolyser to supply the electrolyser with steam, a first line for discharging the electrolyser to discharge dihydrogen from the electrolyser, a second line for discharging the electrolyser to discharge dioxygen from the electrolyser, a first heat exchange module to ensure a heat exchange between the first steam supply line and the first dihydrogen discharge line. The system also includes a steam ejector arranged downstream from the first heat exchange module on the first dihydrogen discharge line to inject steam into the first dihydrogen discharge line. The system relates to the field of high temperature electrolysis of water, also with solid oxide and that of solid oxide fuel cells. It applies particularly to optimise the energy consumption of an SOEC electrolyser system.

Various embodiments of the present invention relate to, among other things, systems for generating engineered water nanostructures (EWNS) comprising reactive oxygen species (ROS) and methods for inactivating at least one of viruses, bacteria, bacterial spores, and fungi in or on a wound of a subject in need thereof or on produce by applying EWNS to the wound or to the produce.

Various embodiments of the present invention relate to, among other things, systems for generating engineered water nanostructures (EWNS) comprising reactive oxygen species (ROS) and methods for inactivating at least one of viruses, bacteria, bacterial spores, and fungi in or on a wound of a subject in need thereof or on produce by applying EWNS to the wound or to the produce.

An electrochemical apparatus includes: a reformer that produces a first hydrogen-containing gas by reforming a raw material; a combustor that heats the reformer; an electrochemical device that includes an anode and a cathode, the electrochemical device operating by using the first hydrogen-containing gas supplied to the anode; a first flow rate controller that controls a flow rate of the first hydrogen-containing gas supplied to the anode and a flow rate of a second hydrogen-containing gas supplied from a supply source, the second hydrogen-containing gas being different from the first hydrogen-containing gas; a second flow rate controller that controls a flow rate at which an anode-off gas exhausted from the anode is recycled to the anode and a flow rate at which the anode-off gas is supplied to the combustor; and a controller that controls the first flow rate controller and the second flow rate controller.

Disclosed herein are methods and systems that relate to oxidizing a metal ion of a metal oxyanion or a non-metal ion of a non-metal oxyanion from a lower oxidation state to a higher oxidation state at an anode and generate hydrogen gas at the cathode. The metal oxyanion with the metal ion in the higher oxidation state or the non-metal oxyanion with the non-metal ion in the higher oxidation state may be then subjected to a thermal reaction or a second electrochemical reaction, to form oxygen gas as well as to regenerate the metal oxyanion with the metal ion in the lower oxidation state or the non-metal oxyanion with the non-metal ion in the lower oxidation state, respectively.

Disclosed herein are methods and systems that relate to oxidizing a metal ion of a metal oxyanion or a non-metal ion of a non-metal oxyanion from a lower oxidation state to a higher oxidation state at an anode and generate hydrogen gas at the cathode. The metal oxyanion with the metal ion in the higher oxidation state or the non-metal oxyanion with the non-metal ion in the higher oxidation state may be then subjected to a thermal reaction or a second electrochemical reaction, to form oxygen gas as well as to regenerate the metal oxyanion with the metal ion in the lower oxidation state or the non-metal oxyanion with the non-metal ion in the lower oxidation state, respectively.