Abstract: A reactor has a reactor vessel and one or more reaction tubes. One or more power input elements are guided into the reactor vessel for the electrical heating of the reaction tube(s). The one or more power input elements each have a rod-shaped section, and the rod-shaped section(s) each run in a respective wall passage through a wall of the reactor vessel. A connection chamber into which the rod-shaped section(s) project is arranged outside the reactor vessel and adjacent to the wall of the reactor vessel through which the rod-shaped section(s) run in their wall passages. Gas feed means apply an inerting gas to the connection chamber, and the wall passages with the rod-shaped sections received therein in a longitudinally-movable manner are designed to be gas-permeable so that at least a portion of the inerting gas fed into the connection chamber flows out into the reactor vessel.

Abstract: A reactor for carrying out a chemical reaction has a reactor vessel, one or more reaction tubes and means for the electrical heating of the one or more reaction tubes. The reactor vessel has one or more discharge orifices which are permanently open or are set up to open above a preset pressure level, and gas feed means are provided, which are set up to feed an inerting gas into an interior of the reactor vessel.

Abstract: A reactor includes a reactor vessel and one or more reaction tubes A number of tube sections of the one or more reaction tubes in each case run between a first region and a second region in the reactor vessel. For the electrical heating of the tube sections, the tube sections in the first region can be electrically connected to (a) current connection(s) of a current source. In the first region, current feed arrangements are provided; in each case one or in each case one group of the tube sections are electrically connected, and each comprise (a) contact passage(s) that in each case adjoin(s) at least one of the tube sections in the first region. A wall of the contact passages in each case is connected to a current feed element that has a rod-shaped section that runs at a wall passage through a wall of the reactor vessel.

Abstract: A reactor for carrying out a chemical reaction, which has a reactor vessel and one or more reaction tubes, wherein power input elements for electrical heating of the reaction tube(s) are guided into the reactor vessel. It is provided that the power input elements each have a rod-shaped section that, in each case, runs at a wall passage through a wall of the reactor vessel in such a way that a connection chamber into which the rod-shaped sections project is arranged outside the reactor vessel and adjacently to the wall of the reactor vessel through which the rod-shaped sections run at their wall passages, and that cooling panels through which a cooling fluid can flow are provided in the connection chamber and are arranged between at least two or between at least two groups of the rod-shaped sections that project into the connection chamber.

Abstract: A device (110) for heating a fluid is proposed. The device comprises at least one electrically conductive pipeline (112) and/or at least one electrically conductive pipeline segment (114) for receiving the fluid, and at least one DC current and/or DC voltage source (126), wherein respectively one DC current or DC voltage source (126) is assigned to each pipeline (112) and/or each pipeline segment (114), said DC current and/or DC voltage source being connected to the respective pipeline (112) and/or the respective pipeline segment (114), wherein the respective DC current and/or DC voltage source (126) is embodied to produce an electric current in the respective pipeline (112) and/or in the respective pipeline segment (114), said electric current warming up the respective pipeline (112) and/or the respective pipeline segment (114) by Joule heating, which arises when the electric current passes through conductive pipe material, for the purposes of heating the fluid.