Abstract: An apparatus for producing ammonia or hydrogen may include a) a gas stream feed conduit having a connecting conduit to a steam reformer with a waste heat section; b) a heat exchanger downstream of the gas stream feed conduit; c) a gas stream preheater downstream of the heat exchanger; d) a recirculation conduit which is located downstream of the gas stream preheater and leads to the gas stream feed conduit or, upstream of the heat exchanger, to the connecting conduit; and e) the steam reformer with the waste heat section, where the waste heat section may be in thermal contact with the gas stream preheater and the flow of the gas stream which has been heated in the gas stream preheater through the recirculation conduit can be regulated. A process for producing ammonia or hydrogen may employ such an apparatus.

Abstract: An apparatus for producing ammonia or hydrogen may include a) a gas stream feed conduit having a connecting conduit to a steam reformer with a waste heat section; b) a heat exchanger downstream of the gas stream feed conduit; c) a gas stream preheater downstream of the heat exchanger; d) a recirculation conduit which is located downstream of the gas stream preheater and leads to the gas stream feed conduit or, upstream of the heat exchanger, to the connecting conduit; and e) the steam reformer with the waste heat section, where the waste heat section may be in thermal contact with the gas stream preheater and the flow of the gas stream which has been heated in the gas stream preheater through the recirculation conduit can be regulated. A process for producing ammonia or hydrogen may employ such an apparatus.

Abstract: A rail vehicle comprising a vehicle body defining a vehicle interior, an internal combustion engine and an exhaust gas system in communication with the internal combustion engine for evacuating the exhaust gases of the internal combustion engine, wherein the exhaust gas system comprises an additive supply unit designed to supply an additive for pollutant reduction to the exhaust gas stream of the internal combustion engine, and the additive supply unit comprises a reservoir for the additive and a supply section connected thereto for supplying the additive to the exhaust gas stream. The reservoir and/or the supply section is arranged in at least one body chamber of the vehicle body, wherein the at least one body chamber is provided with sound insulation and/or thermal insulation at least in the areas adjacent to the vehicle interior and/or the environment of the vehicle, which are frequented by passengers.

Abstract: A rail vehicle comprising a vehicle body defining a vehicle interior, an internal combustion engine and an exhaust gas system in communication with the internal combustion engine for evacuating the exhaust gases of the internal combustion engine, wherein the exhaust gas system comprises an additive supply unit designed to supply an additive for pollutant reduction to the exhaust gas stream of the internal combustion engine, and the additive supply unit comprises a reservoir for the additive and a supply section connected thereto for supplying the additive to the exhaust gas stream. The reservoir and/or the supply section is arranged in at least one body chamber of the vehicle body, wherein the at least one body chamber is provided with sound insulation and/or thermal insulation at least in the areas adjacent to the vehicle interior and/or the environment of the vehicle, which are frequented by passengers.