Process for converting raffinate butenes to propylene
US-11926587-B2 · Mar 12, 2024 · US
US9682903B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9682903-B2 |
| Application number | US-201615189419-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 22, 2016 |
| Priority date | Sep 18, 2015 |
| Publication date | Jun 20, 2017 |
| Grant date | Jun 20, 2017 |
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A method for treating a gas stream comprising hydrogen and propane, where a combination of membrane separation and elevated pressure distillation is used to separate the hydrogen gas from the propane gas.
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The invention claimed is: 1. Method for treating a gas stream comprising hydrogen and propane, comprising the steps of: a) providing a membrane having a feed side and a permeate side, the membrane being selective for hydrogen over propane; b) passing the gas stream across the feed side of the membrane; c) withdrawing from the feed side a retentate stream depleted in hydrogen and enriched in propane compared with the gas stream; d) withdrawing from the permeate side a permeat…
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