Chemical looping
US-10843157-B2 · Nov 24, 2020 · US
Hydrogen production apparatus and fuel cell system using the same
US8945784B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8945784-B2 |
| Application number | US-93582309-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 9, 2009 |
| Priority date | Mar 31, 2008 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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There are provided a hydrogen production apparatus and a hydrogen producing method that can easily bring the temperature of a gas to be supplied to a preferential oxidation catalyst bed to a proper range without the necessity of flow rate control of a cooling medium, and a fuel cell system which is relatively inexpensive and can easily realize stable operation. The hydrogen producing method includes a reforming step of obtaining a hydrogen-containing gas from a raw material for hydrogen production by utilizing a reforming reaction, a shift reaction step of reducing the concentration of carbon monoxide in the gas obtained from the reforming step by a shift reaction, a cooling step of cooling the gas obtained from the shift reaction step, a heating step of heating the gas cooled in the cooling step and a preferential oxidation reaction step of reducing the concentration of carbon monoxide in the gas heated in the heating step, wherein in the heating step, the gas cooled in the cooling step is heated by heat exchange with the use of heat generated by the preferential oxidation reaction. A hydrogen production apparatus suitable for implementing this method. A fuel cell system provided with the hydrogen production apparatus.
First claim
Opening claim text (preview).
The invention claimed is: 1. A hydrogen production apparatus comprising: a reformer configured to obtain a hydrogen-containing gas from a raw material for hydrogen production by utilizing a reforming reaction; a shift reactor configured to reduce the concentration of carbon monoxide in the gas obtained from the reformer by a shift reaction; a cooler configured to cool the gas obtained from the shift reactor; a heat exchange structure configured to heat the gas cooled by the…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C01B3/583Primary
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US8945784B2 cover?
- There are provided a hydrogen production apparatus and a hydrogen producing method that can easily bring the temperature of a gas to be supplied to a preferential oxidation catalyst bed to a proper range without the necessity of flow rate control of a cooling medium, and a fuel cell system which is relatively inexpensive and can easily realize stable operation. The hydrogen producing method inc…
- Who is the assignee on this patent?
- Sato Yasushi, Kato Emi, Matsumoto Takaya, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification C01B3/583. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).