Blocking device for the recirculation loop in a fuel cell stack
US-2024186540-A1 · Jun 6, 2024 · US
Pem fuel cell powersystems with efficient hydrogen generation
US2020153003A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020153003-A1 |
| Application number | US-202016740191-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 10, 2020 |
| Priority date | Apr 14, 2016 |
| Publication date | May 14, 2020 |
| Grant date | — |
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Abstract
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Methods and devices for generating power using PEM fuel cell power systems comprising a rotary bed reactor for hydrogen generation are disclosed. Hydrogen is generated by the hydrolysis of fuels such as lithium aluminum hydride and mixtures thereof. Water required for hydrolysis may be captured from the fuel cell exhaust. Water is preferably fed to the reactor in the form of a mist generated by an atomizer. An exemplary 750 We-h, 400 We PEM fuel cell power system may be characterized by a specific energy of about 550 We-h/kg and a specific power of about 290 We/kg.
First claim
Opening claim text (preview).
1 - 30 . (canceled) 31 . A method of producing power using a fuel cell power system, the method comprising: providing a fuel cell stack comprising a plurality of fuel cells, each cell having an anode side and a cathode side that enables operation of the cathode side at substantially ambient pressure; routing hydrogen from a hydrogen generator to the anode side of the fuel cell stack, wherein the hydrogen is in excess of that required by the fuel cell stack for producing power and a recirculating hydrogen stream; providing a blower positioned to receive the recirculating hydrogen after the anode side of the fuel cell stack and blow the recirculating hydrogen stream; enriching the recirculating hydrogen stream received from the blower with water; and routing the water-enriched recirculation hydrogen stream to the hydrogen generator.
Assignees
Inventors
Classifications
- H01M8/04097Primary
with recycling of the reactants (H01M8/04119, H01M8/04104 take precedence) · CPC title
- C01B3/065Primary
by reaction of inorganic compounds with hydrides · CPC title
by condensers, gas-liquid separators or filters · CPC title
Fuel cells with polymeric electrolytes · CPC title
by water containing exhaust gases · CPC title
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- What does patent US2020153003A1 cover?
- Methods and devices for generating power using PEM fuel cell power systems comprising a rotary bed reactor for hydrogen generation are disclosed. Hydrogen is generated by the hydrolysis of fuels such as lithium aluminum hydride and mixtures thereof. Water required for hydrolysis may be captured from the fuel cell exhaust. Water is preferably fed to the reactor in the form of a mist generated by…
- Who is the assignee on this patent?
- Honeywell Int Inc
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04097. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu May 14 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).