Patent DE-102010024539-A1 (DE)
Title: Reactor for catalytic primary reforming of hydrocarbons using water steam under increased pressure, comprises a vertical can system, a combustion chamber and combustion devices arranged parallel to each other
IPC: C01B3/38
Filed: 2010-06-21
Abstract: The reactor for catalytic primary reforming of hydrocarbons using water steam under increased pressure, comprises a vertical can system (2), a combustion chamber (1) and combustion devices arranged parallel to each other in upper area of the combustion chambers. The vertical can system comprises vertical tubes, which are arranged in rows and are suitable for filling with catalysts, arrangements for supplying hydrocarbon to be reformed and steam to reaction areas, and/or arrangement for discharging reformed synthesis gas from the reaction area. The reactor for catalytic primary reforming of hydrocarbons using water steam under increased pressure, comprises a vertical can system (2), a combustion chamber (1) and combustion devices arranged parallel to each other in upper area of the combustion chambers. The vertical can system comprises vertical tubes, which are arranged in rows and are suitable for filling with catalysts, arrangements for supplying hydrocarbon to be reformed and steam to reaction areas, and/or arrangement for discharging reformed synthesis gas from the reaction area. The combustion devices are arranged between the vertical tubes and consist of burners (3) disposed in rows. The burners generate flames directed substantially downward, where each of the burner devices are fed with heating gas and air (5). The air is drawn from inlets and the resulting smoke gas permeates the combustion chamber from the top to the bottom and enters substantially horizontally disposed smoke gas tunnels (4) made of ceramic material and running parallel to each other and perpendicular to the vertical cans. The burners are associated with a burner device through openings in the side walls of the smoke gas tunnels at the lower region of the combustion chamber and the smoke gas is fed into devices used for recapturing heat at the outlet of the combustion chamber. A preheated additional gas comprising both oxygen and a non-flammable gas is fed through feed devices at each end of each of the smoke gas tunnels in the flow direction of the drawn-off smoke gases, so that the additional gas fed into the smoke gas tunnels permeates smoke gas tunnel over the entire length of the combustion chamber, where each amount of additional gas is regulated, and the additional gas is preheated before feeding into the smoke gas tunnel. The tapping of air from the way of pre-heating of air that is provided as combustion air is directed to the feeding position for additional gas. A pressure-increasing device for additional gas is directed after the tapping of air. The supply device for the burner air comprises connection lines that flow in the supply device for pre-heated additional gas. The connection lines are arranged for air at the rear wall of the combustion device and have flaps or valves for air. The connection lines are distinctive for air that flows at the inlet of the combustion chamber in the smoke gas tunnel, in the form of slits or spin body or branch pipe. An independent claim is included for a method for catalytic primary reforming of hydrocarbons using water steam under increased pressure.