Apparatus for cleaning gas streams containing exothermically convertible gas components, comprises a reactor vessel through which the gas passes and containing units for exothermically converting the gas components

Apparatus for cleaning gas streams containing exothermically convertible gas components comprises a reactor vessel (2) through which the gas passes and containing units for exothermically converting the gas components.

Gas generating system for producing a hydrogen-containing gas from hydrocarbons and/or hydrocarbon derivatives for operating a fuel cell has a feedback by which a part of a residual gas is returned

Gas generating system (1) has a feedback (7a) by which a part of a residual gas remaining after the unit (5) for selectively removing hydrogen is returned to the region before the unit for selectively removing hydrogen.

Ventilation device for a motor vehicle

A ventilation device 10, for a motor vehicle, has an oxygen enrichment device 16 comprising a storage element 18 which, in a first operating state, stores oxygen from air outside the vehicle and, in a second operating state, releases the stored oxygen into the vehicle interior 12. The enrichment device 16, which may comprise an absorption or adsorption catalytic converter 18, eg a cerium oxide based converter, may be placed in an air duct 20 having upstream and downstream valve elements 24, 26, respectively. In the first operating state, fig.1, valve 24 is open and valve 26 is closed to allow outside air to reach the enrichment device 16 which stores oxygen. In the second operating state, fig.2, valve 24 is closed and valve 26 is opened to allow stored oxygen to be released to the vehicle interior. The ventilation device, eg air-conditioning system, can be operated in recirculation mode in both operating states. The catalytic converter 18 may be heated in the second operating state. Switching ...

Vorrichtung zur Luftversorgung einer Brennstoffzelle

Die Erfindung betrifft eine Vorrichtung zur Luftversorgung einer Brennstoffzelle (3) mit einem Verdichter (9) und einer Sauerstoffanreicherungsvorrichtung (17), welche von der verdichteten Zuluft nach dem Verdichter (9) ganz oder teilweise durchströmt ist, und mit einer Ableitung (18) für aus der Luft abgetrenntes inertes Gas. Die erfindungsgemäße Vorrichtung ist dadurch gekennzeichnet, dass der Verdichter (9) für ihre wenigstens eine Welle (19) wenigstens ein Gaslager (20) aufweist, welches mit der Ableitung (18) verbunden ist.

Vorrichtung zur Reinigung von Gasströmen

Vorrichtung zur Entschwefelung eines Reformatgasstroms mit wenigstens einem Reaktorbehälter, welcher zumindest Adsorbenzien zur Aufnahme von Schwefelverbindungen und/oder Kohlenmonoxid aufweist, dadurch gekennzeichnet, dass im Bereich wenigstens eines der Reaktorbehälter Katalysatoren zum exothermen Umsetzen von Wasserstoff und/oder Kohlenmonoxid und/oder nicht umgesetzten Resten der Ausgangstoffe der Reformierung angeordnet sind, um die Adsorbenzien aufzuheizen.

MANUFACTURE OF CATALYSTIC DEVICE

PROBLEM TO BE SOLVED: To provide a method of manufacturing a catalytic device in which catalyst material having a large active surface and excelling in stickiness can be stuck to a substrate. SOLUTION: In this method of manufacturing a catalytic device, catalyst- containing material 7 and solvent 8 are mixed, and the catalyst-containing material 7 is stuck to a substrate 1 heated to a boiling point of the solvent 6 or higher. Suspension solution containing the solvent 6 and carrier particles coated by a catalyst activating material and/or catalytic action is sprayed as a spray material to form a catalyst-containing layer on the substrate 1. COPYRIGHT: (C)2000,JPO ...

Verfahren zum Betrieb einer Anlage zur Wasserdampfreformierung von Methanol

Verfahren zum Betreiben eines Brennstoffzellensystems mit veränderlichem Betriebsdruck

Die Erfindung betrifft ein Verfahren zum Betreiben eines Brennstoffzellensystems mit veränderlichem Druck, wobei das Brennstoffzellensystem eine Brennstoffzelleneinheit (1) mit einer Mehrzahl von Brennstoffzellen aufweist und einer Kathode (2) einer Brennstoffzelle ein Oxidationsmittel zugeführt wird, welches mit einem Brennmittel, das einer Anode (3) der Brennstoffzelle zugeführt wird, chemisch reagiert. Aus der Reaktion in der Brennstoffzelleneinheit (1) wird eine elektrische Ausgangsleistung des Brennstoffzellensystems zur Versorgung von elektrischen Verbrauchern (4) bereitgestellt. Eine elektrische Leistung in einem Lastpunkt der Brennstoffzelleneinheit (1) variiert abhängig vom Druck, wobei der Druck von zumindest einem das Oxidationsmittel fördernden Kompressor (5) aufgebracht wird. In dem Lastpunkt, in dem eine elektrische Leistung von dem Brennstoffzellensystem angefordert wird, wird die Druckabhängigkeit der elektrischen Leistung der Brennstoffzelleneinheit (1) gegen eine aufzubringende ...

Fuel cell system for producing electrical drive power in e.g. passenger car, has duct element connecting exhaust air outlet of humidifier with environment, and valve devices adjusting duct elements as flow path for exhaust air from chamber

The system (1) has a first duct element (19) connecting an exhaust air outlet of a cathode chamber (5) of a fuel cell (3) with an exhaust air inlet of an intercooler (13). A second duct element (21) connects an exhaust air outlet of the intercooler with an exhaust air inlet of a humidifier (14). Supply air and exhaust air pass through the intercooler and the humidifier. A third duct element (23) indirectly connects an exhaust air outlet of the humidifier with environment. Valve devices (20, 22, 24) selectively adjust the duct elements as a flow path for the exhaust air from the chamber. The valve devices are 3/2 directional valves. The humidifier is a membrane humidifier. The fuel cell is a proton exchange membrane fuel cell. An independent claim is also included for a method for operating a fuel cell system.

Fuel cell system operating method for use in vehicle, involves supplying exhaust gas coming from anode to cathode of membrane-electrode-arrangement, and operating fuel cell system with current of greater than two ampere

The method involves supplying exhaust gas coming from an anode (3) to a cathode (4) of a membrane-electrode-arrangement, and operating a fuel cell system (1) with current of greater than 2 ampere per cm-square electrode surface, where exhaust gas is produced during operation of the fuel cell system. The exhaust gas is compressed by a compressor (9) that is electrically driven by an electric motor (10). A polymer-electrolyte-membrane (5) is arranged between the cathode and the anode. A heat-exchanger (11) is provided for cooling supply air of the cathode. An independent claim is also included for a fuel cell system comprising a membrane-electrode-arrangement.

Method for controlling pressure in fuel cell system mounted in vehicle, involves varying supply of gaseous medium in the area of cathode side so as to influence pressure on cathode side with pressure controller

The method involves providing the fuel cell (3) with cathode side having a supply duct (5) to the cathode chamber (4) of the fuel cell. The cathode chamber of the fuel cell is provided with an exhaust line (7). The pressure on the cathode side is influenced through a pressure controller (19). The supply of gaseous medium in the area of ??the cathode side is varied so as to influence the pressure with the pressure controller. The air supply on the cathode side is varied through the pressure controller.

Verfahren zum Betrieb einer Anlage zur Wasserdampfreformierung von Methanol

Vorrichtung zur Entschwefelung von Gasströmen

Vorrichtung zur Entschwefelung eines Reformatgasstroms durch Adsorption und Absorption von schwefelhaltigen Verbindungen in mindestens einer Entschwefelungsstufe, dadurch gekennzeichnet, dass die Entschwefelungsstufe wenigstens zwei verschiedene Adsorptions- und Absorptionsmittel aufweist, wobei wenigstens eines der Adsorptions- und Absorptionsmittel bei den üblicherweise nach der Reformierung vorliegenden Temperaturen von 300 bis 400°C ein hohes Schwefelbindungspotential aufweist, und wobei das wenigstens eine andere Adsorptions- und Absorptionsmittel bei Temperaturen deutlich unter den üblicherweise nach der Reformierung vorliegenden Temperaturen von weniger als 100°C ein hohes Schwefelbindungspotential aufweist.

Motor vehicle e.g. rear wheel drive (RWD) vehicle, includes adjustable air guide elements for generating compressive force, having specific areas which are separately adjustable in vehicle transverse direction

The motor vehicle (10) includes adjustable air guide elements (15,16) for generating compressive force which is applied onto a substrate. The areas (11-14) of the air guide elements are separately adjustable in the vehicle transverse direction. The air guide element has a diffuser, and two regions having a baffle which is adjustable separately. The rear wings have two regions whose height or tilt angle is separately adjustable. An independent claim is included for method of adjusting aerodynamic properties of motor vehicle.

Fuel cell controlling and regulating method for electrical vehicles, involves determining one or multi dimensional connections between dynamic input variable and dynamic output variable in training algorithm

The method involves determining multi dimensional connections between a dynamic input variable (EG1 to EGz) and a dynamic output variable (AG1 to AG) in a training algorithm and the intensity of the respective connection representing weight is determined depending on specified training data. The weight is adjusted by inequality of the determined dynamic output variable with a training valuation for the dynamic output variable.

Diffuser arrangement for adjusting aerodynamic profile of motor vehicle i.e. motor car, has air guiding elements arranged in lower base region of motor vehicle, where elements are swingable between two functional positions

The arrangement (16) has a set of air guiding elements (14) arranged in a lower base region (10) of a motor vehicle (12). The guiding elements are swingable between a functional position in which the guiding elements are completely flush locked with a lower base (38) and another functional position in which the guiding elements are moveably protruded from the lower base towards a road surface. A flow channel (18) is formed between the guiding elements in a vehicle longitudinal direction. The flow channel comprises a longitudinal portion that is arranged in a rear area of the motor vehicle. An independent claim is also included for a method for adjusting an aerodynamic profile of a motor vehicle.

Apparatus for desulfurizing gas streams comprises a heads-desulfurizing stage containing an adsorbent having a high potential for binding sulfur at higher operating temperatures

Apparatus for desulfurizing gas streams comprises a heads-desulfurizing stage (1) containing a first adsorbent having a high potential for binding sulfur at higher operating temperatures. Preferred Features: The apparatus has a storage stage (2), in which a second adsorbent having a higher potential for binding potential at higher operating temperatures. The heads-desulfurizing stage and the storage stage are connected so that the gas stream initially passes through the heads-desulfurizing stage and then the storage stage. The apparatus further includes a post-cleaning stage (3) containing an adsorbent which guarantees that the sulfur concentration lies below a prescribed value at the outlet of the apparatus.

Method for operating multiple control units for e.g. bypass valve of fuel cell arrangement for motor car, involves controlling component of fuel cell arrangement based on determined control command

The method involves determining a state variable of a control unit (12) connected to a control device (14), and determining a deviation in the state variable from a predetermined desired value. An optimized state variable is determined for the control unit based on the determined deviation and the state variables of the control unit. The optimized state variable is assigned to the control unit. A control command is determined for the control unit based on the optimized state variable. A component (16) of a fuel cell arrangement (10) is controlled based on the determined command.

Gas generator and reformer producing hydrogen-containing gas for vehicle fuel cell, combines recycled gas and feedstock flowing to reformer, at constriction

The combiner (5) of a recycled gas fraction and the feedstock (A, B, C) flowing to the reformer (3), includes a constriction. The combiner is a gas jet pump. At least some of the recycled gas originates between reformer and equipment enriching the hydrogen-containing gas with further hydrogen. All recycled gas flow originates directly after the reformer. Before recycling some of the hydrogen-rich gas, it is passed through a unit constructed to reduce the hydrogen concentration. This unit is the anode chamber (7) of a fuel cell (2). The recycled gas flow fraction is from the anode chamber (7) of the fuel cell (2), following hydrogen consumption. The reformer is a steam reformer; it is an autothermal reformer.

Process for manufacturing a catalytic material

A method for manufacturing a catalytic converter includes spraying a suspension comprising a solvent and a catalyst material comprising carrier particles coated with a catalytically active material onto a substrate having a temperature above the boiling point of the solvent via a sprayer; and forming a layer on the substrate. The layer is thermally activated and is wetted three-dimensionally.