Fuel processor and hydrogen purification device thereof
US-9520609-B2 · Dec 13, 2016 · US
Method for mixing at least two gases
US2024208812A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024208812-A1 |
| Application number | US-202218085667-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 21, 2022 |
| Priority date | Dec 21, 2022 |
| Publication date | Jun 27, 2024 |
| Grant date | — |
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- Title
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Abstract
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A method for separating hydrogen from a hydrogen-containing hydrocarbon stream, including introducing a hydrogen-containing hydrocarbon stream into a membrane separation unit, thereby producing a hydrogen-lean hydrocarbon retentate stream and hydrogen-rich permeate stream. Wherein the hydrogen-containing hydrocarbon stream has greater than 50 mol % hydrogen. And wherein the hydrogen-lean hydrocarbon retentate stream has more than 5 mol % hydrogen and less than 20 mol % hydrogen.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for separating hydrogen from a hydrogen-containing hydrocarbon stream, comprising introducing a hydrogen-containing hydrocarbon stream into a membrane separation unit, thereby producing a hydrogen-lean hydrocarbon retentate stream and hydrogen-rich permeate stream, wherein the hydrogen-containing hydrocarbon stream comprises greater than 50 mol % hydrogen, and wherein the hydrogen-lean hydrocarbon retentate stream comprises more than 5 mol % hydrogen and less than 20 mol % hydrogen. 2 . The method of claim 1 , wherein the hydrogen-lean hydrocarbon retentate stream comprises less than 10 mol % hydrogen. 3 . The method of claim 1 , further comprising introducing the hydrogen-rich permeate stream into a pressure swing adsorption unit, thereby producing a high-purity hydrogen stream and a PSA tail gas stream, wherein the high-purity hydrogen stream comprises greater than 99.9 mol % hydrogen. 4 . A method for separating hydrogen from a hydrogen-containing hydrocarbon stream, comprising introducing a hydrogen-containing hydrocarbon stream into a pressure swing adsorption unit, thereby producing a high-purity hydrogen stream and a PSA tail gas stream, wherein the high-purity hydrogen stream comprises greater than 99.0 mol % hydrogen, and wherein the PSA tail gas stream is introduced into a low-pressure natural gas pipeline. 5 . The method of claim 4 , wherein the low-pressure natural gas pipeline operates at a pressure of less than 25 bara. 6 . The method of claim 4 , further comprising introducing the PSA tail gas stream into a membrane separation unit, thereby producing a hydrogen-lean hydrocarbon retentate stream and hydrogen-rich permeate stream, wherein the hydrogen-lean hydrocarbon retentate stream comprises less than 20 mol % hydrogen. 7 . The method of claim 6 , further comprising returning at least a portion of the hydrogen-rich permeate stream to the PSA feed.
Assignees
Inventors
Classifications
At least two purification steps in series · CPC title
the impurity being an organic compound · CPC title
Purification by membrane separation · CPC title
Regenerative adsorption process in two or more beds, one for adsorption, the other for regeneration · CPC title
the different products not being separated (separation of contaminants by distillation B01D3/00) · CPC title
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- What does patent US2024208812A1 cover?
- A method for separating hydrogen from a hydrogen-containing hydrocarbon stream, including introducing a hydrogen-containing hydrocarbon stream into a membrane separation unit, thereby producing a hydrogen-lean hydrocarbon retentate stream and hydrogen-rich permeate stream. Wherein the hydrogen-containing hydrocarbon stream has greater than 50 mol % hydrogen. And wherein the hydrogen-lean hydroc…
- Who is the assignee on this patent?
- Air Liquide
- What technology area does this patent fall under?
- Primary CPC classification C01B3/501. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 27 2024 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).