Method and system for precise regulation and control of anode air injection of fuel cell resistant to carbon monoxide

A fuel cell and carbon monoxide technology, used in fuel cells, fuel cell additives, electrical components, etc., can solve the problems of catalyst and proton exchange membrane attenuation, consumption of hydrogen, and impact on the life of fuel cells, so as to reduce the cost of hydrogen use, eliminate the Poisoning effect, the effect of solving the problem of carbon monoxide poisoning

Active Publication Date: 2021-12-24
TSINGHUA UNIV
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Problems solved by technology

However, the amount of air mixed in needs to be optimized, otherwise, insufficient air injection will cause the fuel cell catalyst to be poisoned by carbon monoxide and fail, however, excess air will not only consume hydrogen, but also generate local hot spots and free radicals due to violent reactions, which are harmful to Fuel cell catalysts and proton exchange membranes produce irreversible decay, which in turn affects fuel cell life

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  • Method and system for precise regulation and control of anode air injection of fuel cell resistant to carbon monoxide
  • Method and system for precise regulation and control of anode air injection of fuel cell resistant to carbon monoxide
  • Method and system for precise regulation and control of anode air injection of fuel cell resistant to carbon monoxide

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Embodiment Construction

[0022] The method for regulating the fuel cell's carbon monoxide-tolerant anode air injection quantity proposed by the present invention includes:

[0023] A calibration fuel cell is arbitrarily selected from the fuel cells to be controlled, and the calibration fuel cell is calibrated to obtain a fuel cell performance MAP;

[0024] Detect the concentration of carbon monoxide at the anode inlet of the fuel cell to be controlled, denoted as c in , according to the fuel cell performance MAP, determine the feedforward optimal air injection concentration c of the fuel cell to be controlled air ;

[0025] An optimization model for the adsorption and reaction of fuel cell anode gas is established, and the optimization model is solved to obtain the adsorption proportions of hydrogen, oxygen and carbon monoxide on the surface of the fuel cell anode catalyst, which are used to estimate the adsorption proportion of carbon monoxide on the anode catalyst surface. CO ;

[0026] At the eq...

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Abstract

The invention belongs to the technical field of fuel cells, and in particular relates to a method and system for precise regulation and control of an anode air injection of a fuel cell resistant to carbon monoxide. The present invention determines the feed-forward amount of the air injection amount through the calibrated MAP diagram of the influence of carbon monoxide on the poisoning of the proton exchange membrane fuel cell, detects the gas composition at the anode inlet of the fuel cell, and estimates the equivalent carbon monoxide concentration on the surface of the anode catalyst through an optimization model, To correct the required air injection amount, and then realize the precise control of the air injection amount, which can effectively solve the carbon monoxide poisoning problem of the fuel cell, improve the tolerance of the fuel cell to carbon monoxide, and enable the fuel cell to use impure hydrogen as fuel for a long time. Effectively reduce the hydrogen cost of fuel cells.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a method and system for precise regulation and control of carbon monoxide-resistant anode air injection of fuel cells. Background technique [0002] Proton exchange membrane fuel cells have the advantages of high efficiency, green environmental protection, and no noise, and have broad application prospects in vehicle power, stationary power supply, and household cogeneration. Hydrogen is used as the fuel for proton exchange membrane fuel cells, and its storage, transportation and distribution are more difficult than traditional liquid fuel transportation. The use of methanol and other liquid fuels to reform hydrogen can provide convenience for the above application scenarios and areas where it is inconvenient to obtain pure hydrogen source of hydrogen. In addition, a large amount of impure hydrogen contained in the waste gas of coal processing, petroleum refining,...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01M8/04089H01M8/04082H01M8/0444H01M8/04746H01M8/04992
CPCH01M8/04104H01M8/04201H01M8/04462H01M8/04992H01M8/04753Y02E60/50
Inventor裴普成王明凯陈东方任棚李子钊王鹤黄尚尉宋鑫
OwnerTSINGHUA UNIV