UPGRADING STREAMS COMPRISING C3 AND C4 HYDROCARBONS

A first stream containing 1,3-butadiene, C4 acetylenes, and optionally C3 hydrocarbons, is mixed with a portion of the liquid recycle stream from a C4 acetylene hydrogenation reactor containing hydrogenated C4 acetylenes and a molecular hydrogen-containing stream, the resulting mixed stream is then...

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Hauptverfasser: HAMILTON, Kristine, E, YEH, Quo-chen, SRIVASTAVA, Alok, RADZICKI, Michael, A, SELLINGER, David, CHOI, Robert
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A first stream containing 1,3-butadiene, C4 acetylenes, and optionally C3 hydrocarbons, is mixed with a portion of the liquid recycle stream from a C4 acetylene hydrogenation reactor containing hydrogenated C4 acetylenes and a molecular hydrogen-containing stream, the resulting mixed stream is then fed to a C4 acetylene hydrogenation reactor to selectively hydrogenate the C4 acetylenes in the crude butadiene stream without appreciable 1,3-butadiene conversion.