Abstract: A furnace and a process for temperature control of a material stream, wherein the furnace has a first combustion chamber, at least one reactor tube for receiving the material stream to be heated, and at least one second combustion chamber. The at least one reactor tube extends through the first combustion chamber and through the at least one second combustion chamber. The furnace is designed to establish a first temperature in the first combustion chamber and a second temperature in the at least one second combustion chamber, wherein the first temperature and the second temperature are separately adjustable.

Abstract: A furnace and a process for temperature control of a material stream, wherein the furnace has a first combustion chamber, at least one reactor tube for receiving the material stream to be heated, and at least one second combustion chamber. The at least one reactor tube extends through the first combustion chamber and through the at least one second combustion chamber. The furnace is designed to establish a first temperature in the first combustion chamber and a second temperature in the at least one second combustion chamber, wherein the first temperature and the second temperature are separately adjustable.

Abstract: The present invention relates to a reformer tube for producing synthesis gas, e.g., hydrogen, and an apparatus and a process for producing synthesis gas, in particular hydrogen. The reformer tube is configured for directing the flow of starting materials and at least one reaction product in volume streams for the purpose of producing a synthesis gas. The reformer tube has in its interior at least one flow directing device having a first guide device for diverting a first partial volume stream in a direction having a radial component directed away from the longitudinal axis of the reformer tube, and having a second guide device for diverting a second partial volume stream in a direction having a radial component directed towards the longitudinal axis of the reformer tube.

Abstract: The present invention relates to a reformer tube for producing synthesis gas, e.g., hydrogen, and an apparatus and a process for producing synthesis gas, in particular hydrogen. The reformer tube is configured for directing the flow of starting materials and at least one reaction product in volume streams for the purpose of producing a synthesis gas. The reformer tube has in its interior at least one flow directing device having a first guide device for diverting a first partial volume stream in a direction having a radial component directed away from the longitudinal axis of the reformer tube, and having a second guide device for diverting a second partial volume stream in a direction having a radial component directed towards the longitudinal axis of the reformer tube.

Abstract: The invention relates to a burner (B) for firing a combustion chamber, having a supply duct (Z1) for supplying combustion gas or combustion air into the combustion chamber, wherein the burner (B) has an inlet opening (E) via which flue gas (4) can flow into the supply duct (Z1). To be able to adjust the flow rate of the flue gas (4) flowing into the supply duct (Z1), the burner (B) comprises an adjustable throttle device (D).