Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Reexamination Certificate
2006-05-02
2006-05-02
Doerrler, William C. (Department: 3744)
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
C062S632000, C062S635000, C062S932000
Reexamination Certificate
active
07036337
ABSTRACT:
A process for recovering hydrogen from a stream comprised of hydrogen, non-condensable gases, and propane and lighter hydrocarbons, wherein the process comprises the steps of stripping hydrogen and non condensable gases out of the feed light ends stream with methane vapor, washing the stripped hydrogen stream with liquid methane to absorb the non condensable gases, and washing the hydrogen stream with a hydrocarbon lean oil such as liquid ethane to absorb methane, to produce the product hydrogen stream.
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Doerrler William C.
Nadler Murray
Wylie Companies, INC
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