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Preheating arrangement in a fuel cell apparatus

A fuel cell, preheating device technology, applied in the direction of fuel cells, fuel cell additives, circuits, etc.

Inactive Publication Date: 2012-10-31
CONVION OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the object of the invention is to provide a solution according to which the reaction vessel used can be heated during operation without consuming external electrical energy or the electrical energy generated by the fuel cell

Method used

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  • Preheating arrangement in a fuel cell apparatus
  • Preheating arrangement in a fuel cell apparatus

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Embodiment Construction

[0013] figure 1 A typical fuel cell installation is shown in simplified schematic form in which the preheating device according to the invention can be suitably used. figure 1 In the shown fuel cell device, the fuel cell stack constituting the fuel cell unit 6 operating at high temperature can include, for example, a solid oxide fuel cell (solid oxide fuel cell, SOFC) or a molten carbonate fuel cell (molten carbonate fuel cell) , MCFC) or other suitable fuel cell types. The fuel for the plant shown can be, for example, hydrogen available from natural gas. Other suitable fuels include, for example, methanol, diesel, kerosene, and other hydrocarbon materials. Natural gas is injected into the device in a pressurized state through an inlet pipe 1 via a heat exchanger 2 where the fuel is heated by the heat of the exhaust gas. The sulfur removal unit 3 is located behind the heat exchanger 2, and the sulfur removal unit is used to remove sulfur in the fuel. After the sulfur remov...

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Abstract

The present invention relates to a preheating arrangement in a fuel cell apparatus, the fuel cell apparatus comprising at least a fuel cell unit (6) having an anode side (7) and a cathode side (8) with an electrolyte (9) therebetween, the fuel cell apparatus having at least a fuel inlet (1) to the anode side (7) and an oxygen-containing air inlet (11) to the cathode side (8) as well as a sulphur removal unit (3) and a fuel modifying unit (4) and an afterburner (14) for combusting the exhaust gases from the anode and / or cathode side. According to the invention, the afterburner (14) is provided with a separate fuel inlet channel (24) for introducing fuel to the afterburner (14) during the start-up phase of the fuel cell apparatus and that at least a part of the exhaust gases formed in the combustion of the separately fed fuel is arranged to be directed from the afterburner (14) for heating at least the sulphur removal unit (3) and / or the fuel modifying unit (4) during the start-up phase. The outlet channels (27') (29') are provided with heat exchangers (31) and adjustment means (30) for adjusting the exhaust gas flow rate.

Description

technical field [0001] The invention relates to a preheating device for a fuel cell device according to the preamble of claim 1, the fuel cell device comprising at least a fuel cell unit, the fuel cell unit having an anode side and a cathode side in the fuel cell, Between the anode side and the cathode side is an electrolyte, and the fuel cell device has at least a fuel inlet on the anode side and an oxygen-containing air inlet on the cathode side, as well as a sulfur removal unit, a fuel modifying unit, and a burner for burning Exhaust gases from the anode side and / or cathode side. [0002] The invention also relates to a method for preheating a fuel cell device. Background technique [0003] One energy source with good efficiency in the future is fuel cells, which convert fuel directly into electricity through chemical reactions. A fuel cell has two electrodes, an anode and a cathode, separated by an ion-conducting substance called an electrolyte. Natural gas or other h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04H01M8/06
CPCH01M8/04022H01M8/0606H01M2008/147H01M8/0675H01M8/04783H01M8/04223H01M8/04373Y02E60/50Y02E60/525H01M8/04268H01M2008/1293Y02E60/526H01M8/04302H01M8/04225H01M8/06H01M8/04
Inventor T·基维萨里T·马拉南
Owner CONVION OY