Methods and apparatuses for purifying crude propane
First Claim
1. A method of purifying a crude propane stream, the method comprising:
- providing a crude propane stream comprising propane, propylene oxide, acetaldehyde, and propylene;
contacting the crude propane stream with a zeolite catalyst and an acetaldehyde scavenger under conditions sufficient to reduce the propylene oxide content and the acetaldehyde content of the crude propane stream and produce a first treated propane stream.
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Abstract
Systems and methods for purifying crude propane streams are provided herein. For example, in some embodiments, methods are provided including passing a crude propane stream to a fixed bed reactor containing a Beta zeolite configured to reduce the propylene oxide content of the crude propane stream and produce a propylene-treated stream and contacting the propylene-treated stream with an acetaldehyde scavenger to produce a treated propane stream. In some embodiments, methods are provided including passing a crude propane stream through a water wash system to provide a treated propane stream having a lower propylene oxide content, a lower acetaldehyde content, or both.
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Citations
11 Claims
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1. A method of purifying a crude propane stream, the method comprising:
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providing a crude propane stream comprising propane, propylene oxide, acetaldehyde, and propylene; contacting the crude propane stream with a zeolite catalyst and an acetaldehyde scavenger under conditions sufficient to reduce the propylene oxide content and the acetaldehyde content of the crude propane stream and produce a first treated propane stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification