One embodiment of the present invention is a unique method for operating a fuel cell system. Another embodiment is a unique system for reforming a hydrocarbon fuel. Another embodiment is a unique fuel cell system. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for fuel cell systems and steam reforming systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

A structured body for heating system for carrying out heating of a pressurized feed gas is provided, where the heat is provided by resistance heating by means of electrical power.

One embodiment of the present invention is a unique method for operating a fuel cell system. Another embodiment is a unique system for reforming a hydrocarbon fuel. Another embodiment is a unique fuel cell system. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for fuel cell systems and steam reforming systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

A reactor system and a process for carrying out reverse water gas shift reaction of a feedstock comprising CO.sub.2 and H.sub.2 to a first product gas comprising CO are provided, where a methanation reaction take place in parallel to the reverse water gas shift reaction, and where the heat for the endothermic reverse water gas shift reaction is provided by resistance heating.

A reaction device for a thermochemical reactor system, having at least one base device and having at least one solid-medium block. at the at least one solid-medium block is arranged on the base device, and extends along an axial direction with at least one thermochemical reaction material. The least one solid-medium block has at least one shaft that has at least one inlet opening and/or at least one outlet opening.

The present invention relates to a catalytic system comprising at least two catalytic zones of which at least one zone exclusively contains one or more noble metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum and at least another zone contains Nickel, said catalytic system characterized in that at least one zone exclusively containing noble metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum is always distinct but in contact with at least one zone containing Nickel.

One or more metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum are possibly added to the catalytic zone or zones comprising Nickel.

The present invention relates to a catalytic system comprising at least two catalytic zones of which at least one zone exclusively contains one or more noble metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum and at least another zone contains Nickel, said catalytic system characterized in that at least one zone exclusively containing noble metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum is always distinct but in contact with at least one zone containing Nickel. One or more metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum are possibly added to the catalytic zone or zones comprising Nickel.

A reactor system and a process for carrying out steam cracking of a feed gas comprising hydrocarbons is provided, i where the heat for the reaction is provided by resistance heating by means of electrical power, so that a product stream comprising at least one olefin compound is obtained.

The present embodiments include systems and methods for converting ortho hydrogen to para hydrogen using, for example, a heat exchange wall that may be coated with a catalyst material.

A structured catalyst for catalyzing an endothermic reaction of a feed gas to convert it to a product gas is provided.