DEVICE AND METHOD FOR CONTROLLABLY CARRYING OUT A CHEMICAL REACTION

Provided is a method for the controlled performance of a chemical reaction in a reactor having several reaction tubes which have a number of electrically heatable tube sections, wherein: current terminals are provided which in a current supply region are each connected to at least one of the tube sections; in a current output region at least one connection element is provided and each of the tube sections is connected to a connection element; the chemical reaction is one of the following reactions: Steam cracking, steam reforming, dry reforming, propane dehydration, a reaction with hydrocarbons which is at least partially carried out at more than 500°C. The method comprises conducting a process fluid through the one or several reaction tubes, providing several variable voltages at the several current terminals, wherein the several voltages are provided as phases of a multiphase alternating voltage such that the at least one connection element forms a star point, setting the one or several voltages; detecting one or several measurement values corresponding to one or several measurement variables; changing the several set voltages such that the detected measurement values correspond to predefined values or value ranges of the measurement variables. A device is also provided which comprises a reactor, one or several measurement apparatuses and a control device, the control device being configured to perform the method.