Hydrogen generator system for a catalytic hydrogen burner

a hydrogen generator and catalytic technology, applied in the direction of fuel cell, fuel energy technology, electrical-based machining apparatus, etc., can solve the problems of lowering the performance of the system, high cost, and more limited duration, and achieve the effect of improving performance and sufficient purity

Inactive Publication Date: 2011-07-28
GIACOMINI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014]Thus, the task on which the present invention is based is that of providing a hydrogen generator system for obtaining hydrogen catalytic burners of the indicated type capable of overcoming the drawbacks of the prior art systems and capable of providing hydrogen produced with sufficient degree of purity in a reliable and continuous manner as well as obtainable in an inexpensive manner and with an improved performance.

Problems solved by technology

Thus, such systems reveal the following drawbacks:they are generally made up of components or devices recovered occasionally on the market, possibly modified and not designed in function of the unit in question,these systems are generally quite complex for the hydraulic and electric installation technicians, in that they require quite long assembly and installation times, errors may occur and they require a lot of space,performance thereof is improvable,often used are proton exchange membrane (PEM) electrolytic cells, which actually provide higher purity of hydrogen with respect to the use of electrolytic cells provided for according to the invention, but have correspondingly higher costs and a more limited duration,heat is developed during electrolysis, hence lowering the performance of the system,an interruption of the electrical energy entails an interruption of the production of hydrogen,provided for is the sole production of hydrogen and oxygen,

Method used

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  • Hydrogen generator system for a catalytic hydrogen burner
  • Hydrogen generator system for a catalytic hydrogen burner
  • Hydrogen generator system for a catalytic hydrogen burner

Examples

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Effect test

example 1

Catalytic Burner

[0053]Project Data:

[0054]User: 5.8 kW catalytic burner, 1.67 Nm3 / h hydrogen consumption

[0055]Storage duration: 12 hours

[0056]Duration of recharge cycle: 12 hours

[0057]Hypothesis for drawing solely from the storage and not directly from the producer.

[0058]Dimensioning:

Minimumdimensionofthestoragemeans=1.67m3h·12h=20m3=20000lMinimumelectrolyserflowrate=2m3h

[0059]Where the required flow rate was rounded off to the higher number for a safety factor and to near the flow rates available in the market.

[0060]Amount of distilled water required to fill the

storagemeans=20m3·0.87lm3=17.4l

[0061]Where 0.87 represents the standard consumption of the electrolyser. A 20 litre storage means is assumed for the sake of safety.

Minimumwatertreatmentflowrate=20l÷12h=1.67lh

[0062]N.B. In this calculation example, the m3 shall be considered under normal conditions.

[0063]Results:

[0064]Water treatment (minimum flow rate)=1.67 l / h

[0065]Demineralised water storage=20 litres

[0066]Electrolysis (rec...

example 2

Fuel Cell

[0068]Project Data:

[0069]User: 1 kW fuel cell, 14 litres / minute hydrogen consumption

[0070]Storage duration: 8 ore

[0071]Duration of recharge cycle: 12 ore

[0072]Hypothesis for drawing solely from the storage and not directly from the electrolyser.

[0073]Dimensioning:

User=14litresmin·601000=0.84m3h≃1m3h

[0074]In this dimensioning, the maximum consumption of hydrogen was rounded off to the higher value so as to have a safety margin.

Minimumdimensionofthestoragemeans=1m3h·8h=8m3=8000lMinimumflowrateoftheelectrolyser=8m3÷12h=0.67m3h

[0075]Amount of distilled water required to fill the

storagemeans=8m3·0.87lm3=6.96l

[0076]Where 0.87 is the standard consumption of an electrolyser. A 10 litre storage means is assumed for the sake of safety.

Minimumwatertreatmentflowrate=10l÷12h=0,83lh

[0077]In this calculation example, the m3 shall be considered under normal conditions.

Results:

[0078]Water treatment (minimum flow rate)=0.83 l / h

[0079]Demineralised water storage=10 litres

[0080]Electrolysis (mi...

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Abstract

A hydrogen generator system (1) for a hydrogen powered unit or user (3), such as for example a catalytic hydrogen burner or a fuel cell, includes an electrolyzer (2) for the electrolysis of distilled water, producing hydrogen and oxygen, provided with a demineralizer device (5) and an A/C transformer/converter unit (7) for supplying electrical power for the electrolysis process and, on the outlet side, a device for purifying the hydrogen produced, such system (1) further includes:
    • a device (10) for recovering the heat generated by the electrolysis process
    • and/or a device (17) for storing the hydrogen produced,
such hydrogen generator system (1) is accommodated in a casing (20) which has—externally—inlet and outlet connection fittings.

Description

DESCRIPTION OF THE INVENTION[0001]1. Field of Application[0002]The present invention refers to a hydrogen generator system for a catalytic hydrogen burner according to the preamble of claim 1.[0003]2. Technological Background and State of the Art[0004]Recently developed, as an alternative to the known liquid fuel or gas heaters for producing heat, respectively for heating systems, were burners for catalytic hydrogen combustion with the ignition of the reaction at ambient temperature, without the formation of a flame, with reaction below the temperature of formation of NOx, with exhaust product solely made up of hot moist air, and with the heat transferred entirely to a heat exchanger for heating water of a heating system, for example of the radiant type, in particular for residential buildings, i.e. with surfaces for example up to about 250-300 m2. Hydrogen catalytic burners of the indicated type are disclosed, for example, by document WO 2005 / 024301 of the applicant. The supply of ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C25B1/04C25B9/00
CPCH01M8/0643H01M8/0656H01M8/0687Y02E60/528H01M16/003Y02E60/366H01M8/186Y02E60/36Y02E60/50Y02P20/133Y02P90/40
Inventor GIACOMINI, CORRADO
Owner GIACOMINI
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