A pressure induced premixing injector (12) for mixing a secondary gas (14, 14a, 14b) into a primary gas (17, 17a, 17b) includes a flow restriction (25, 33, 42) in the primary conduit with premix holes (27, 34, 35) upstream thereof allowing a portion of primary gas to flow into secondary gas to form a premix gas and injector holes (28, 37, 43) downstream thereof allowing premix gas to flow into the unmixed portion of primary gas.

Pressurized premixing of gases in an injector

The invention relates to a fuel cell system (10) comprising a reformer (12) for producing a reformate from fuel and an oxidation agent, a fuel cell (22) for converting said reformate into a depleted reformate and electric energy, and a recirculation strand (30) for partially guiding the depleted reformate back to the reformer (12). The invention is characterised in that a transport device (14) is provided, said device guiding the fuel as well as the depleted reformate of the recirculation stand (30) to the reformer (12). The invention also relates to a method for operating said type of fuel cell system (10).

Fuel cell system with a recirculation strand

Hochtemperaturbrennstoffzellensystem, welches eine brenngasfuhrende Anode und eine luftfuhrende Kathode, einen Reformer zur Brenngasbereitung und mindestens einen Warmetauscher zur Nachbehandlung von Anodenabgas sowie einen Nachbrenner, angeordnet stromab der Anode und einer Ruckfuhrung eines Teils des Abgases aus der Anode in den Reformer aufweist.

Hochtemperaturbrennstoffzellensystem mit Abgasrückführung

Hochtemperaturbrennstoffzellensystem, welches eine brenngasfuhrende Anode und eine luftfuhrende Kathode, ein Reformer zur Brenngasbereitung und mindestens ein Warmetauscher zur Nachbehandlung von Anodenabgas sowie ein Nachbrenner, angeordnet stromab der Anode und einer Ruckfuhrung eines Teils des Abgases aus der Anode in den Reformer aufweist. High-temperature fuel cell system comprising a fuel gas leading anode and an air-conducting cathode, a reformer for the fuel gas preparation and at least one heat exchanger for the aftertreatment of the anode exhaust gas and an afterburner disposed downstream of said anode and a recirculation of part of the exhaust gas from the anode into the reformer has.

High temperature fuel cell system with exhaust gas reclamation

The invention relates to a fuel cell system (10), comprising at least one high-temperature fuel cell (11), such as a solid oxide fuel cell or a molten carbonate fuel cell, which has an anode region (A) having an anode inlet (12) and an anode outlet (13), and comprising an anode gas supply line (14), which leads into the anode inlet (12) and in which a reformer (15) for reforming a hydrocarbon-containing fuel is arranged, and comprising an anode recirculation line (16), which proceeds from the anode outlet (13) and leads into the anode gas supply line (14) upstream of the reformer (15). In order to generate steam for the subsequent reforming during the start phase of the system, at least one oxidation catalyst (18, 19, 20) together with an upstream injector (21, 22) for an oxidant is arranged in the anode recirculation line (16) upstream of the junction (17) of the anode gas recirculation line into the anode gas supply line (14).

Fuel cell system having at least one high-temperature fuel cell

Die Erfindung betrifft ein Brennstoffzellensystem mit einem Reformer (10) zum Umsetzen von Brennstoff (12) und Oxidationsmittel (14) zu Reformat (16) und mit zumindest einer Brennstoffzelle (18), der Reformat (16) zugefuhrt wird. DOLLAR A Erfindungsgemas ist dabei vorgesehen, dass der Reformer (10) einen Reformerbrenner (20) und einen Reformerkatalysator (22) aufweist und dass zwischen dem Reformerbrenner (20) und dem Reformerkatalysator (22) Mittel (24) zum Zufuhren von Anodenabgas (26) der Brennstoffzelle (18) und/oder von Reformat (16) und/oder von Abgas (28) eines der Brennstoffzelle (18) nachgeschalteten Nachbrenners (30) vorgesehen sind. DOLLAR A Weiterhin betrifft die Erfindung ein Verfahren zum Betreiben eines Reformers (10) zum Umsetzen von Brennstoff (12) und Oxidationsmittel (14) zu Reformat (16).

Brennstoffzellensystem und Verfahren zum Betreiben eines Reformers

The invention relates to a fuel cell system comprising a reformer (10) for reacting fuel (12) and oxidizer (14) so as to obtain reformate (16) as well as at least one fuel cell (18) to which reformate (16) is fed. The reformer (10) is fitted with a reformer burner (20) and a reformer catalyst (22). Means (24) for feeding anode exhaust gas (26) of the fuel cell (18) and/or reformate (16) and/or exhaust gas (28) of an afterburner (30) mounted downstream from the fuel cell (18) are provided between the reformer burner (20) and the reformer catalyst (22). The invention also relates to a method for operating a reformer (10) to react fuel (12) and oxidizer (14) so as to obtain reformate (16).

Kaeding Stefan

Papers

Brennstoffzellensystem und Verfahren zum Betreiben eines Reformers

Fuel cell system and method for the operation of a reformer