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Desulphurization device for fuel cell and fuel cell system including the same

A technology of fuel cell system and desulfurization device, which can be used in fuel cells, fuel cell additives, dehydration/demulsification by mechanical methods, etc., and can solve problems such as catalyst poisoning

Inactive Publication Date: 2008-11-05
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the fuel cell uses the hydrocarbon fuel, the sulfur compound odorant can cause severe poisoning of the catalyst of the modifying reaction

Method used

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  • Desulphurization device for fuel cell and fuel cell system including the same
  • Desulphurization device for fuel cell and fuel cell system including the same
  • Desulphurization device for fuel cell and fuel cell system including the same

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Embodiment approach

[0057] According to a third embodiment of the present invention, there is provided a fuel cell system comprising: at least one power generating element that generates electricity through an electrochemical reaction of a fuel and an oxidant, a fuel supplier that supplies the fuel to the power generating element, an oxidant An oxidant supplier that supplies the power generating element, and a desulfurization device including a dehydration element that selectively absorbs moisture in fuel and a desulfurization element that absorbs sulfur compounds in fuel. The fuel may be supplied to the power generating element by the fuel supplier through the desulfurization device.

[0058] A fuel cell system according to a fourth embodiment of the present invention includes: at least one power generating element that generates power through an electrochemical reaction of fuel and an oxidant, a fuel supplier that supplies the fuel to the power generating element, supplies the oxidant to the An...

Embodiment 1

[0087] The sulfur compound was detected by the same method as in Comparative Example 1 to detect its saturation absorption activity, the difference being that molecular sieve 4A and molecular sieve 13X were filled in the reactor with a volume ratio of 5:5, and then commercially available liquefied petroleum gas was passed through the reactor. reactor.

Embodiment 2

[0089] The same method as in Example 1 was used to detect sulfur compounds to detect their saturation absorption activities, the difference being that molecular sieve 4A and molecular sieve 13X were filled into the reactor at a volume ratio of 4:5.

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Abstract

A desulfurizing device for a fuel cell includes a dehydrating element for absorbing moisture in a hydrocarbon fuel, and a desulfurizing element for absorbing a sulfur compound included in the hydrocarbon fuel that flows out of the dehydrating element. In another embodiment, the desulfurizing device for a fuel cell includes a dehydrating element for absorbing moisture included in a fuel, and a desulfurizing element. The desulfurizing element absorbs a sulfur compound included in the fuel flowing out of the dehydrating element if temperature of the desulfurizing element is below a predetermined temperature, and the desulfurizing element desorbs a sulfur compound included in the desulfurizing element whenever the desulfurizing element is heated above the predetermined temperature.

Description

technical field [0001] The present invention relates to a desulfurization device for a fuel cell and a fuel cell system including the desulfurization device. More specifically, the present invention relates to a desulfurization device capable of increasing desulfurization efficiency so as to reduce the volume of desulfurization material and its cost, and a fuel cell system including the desulfurization device. Background technique [0002] Fuel cells are power generation systems used to generate electrical energy using hydrocarbon fuels. Representative exemplary fuel cells include polymer electrolyte membrane fuel cells (PEMFC) and direct oxidation fuel cells (DOFC). [0003] The PEMFC has power characteristics superior to conventional fuel cells, as well as lower operating temperature and faster start-up and reaction characteristics. Due to these advantages, PEMFCs are widely used, such as portable power supplies for automobiles, distributed power supplies for houses and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04H01M8/06C10G33/00C10G33/06C10G31/00C10G31/09H01M8/00
CPCB01D2259/4009B01D2259/40086Y02E60/50B01D2259/41B01D2257/80B01D53/0407C10G2300/202H01M2008/1095H01M8/0675B01D2257/30B01D2258/05B01D2253/108C10G25/05C10G2300/1044C10G2300/1025H01M8/06
Inventor 李勇杰金周龙韩万锡李圣哲安镇九金俊植
Owner SAMSUNG SDI CO LTD