US Patent 7883618 Recycle of olefinic naphthas by removing aromatics
Patent 7883618 was granted and assigned to Kellogg Brown & Root Limited on February, 2011 by the United States Patent and Trademark Office.
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Systems and processes for producing one or more olefins. A feed containing 90% by weight or more C4 and higher hydrocarbons can be cracked at conditions sufficient to provide an olefinic mixture and an aromatic mixture. The olefinic mixture can comprise 90% by weight or more C1 to C3 hydrocarbons. The aromatic mixture can comprise 90% by weight or more C4 and higher hydrocarbons and one or more aromatics. The aromatic mixture can be contacted with one or more solvents to selectively separate at least a portion of the one or more aromatics therefrom to provide an aromatic-rich mixture and an aromatic-lean mixture. At least a portion of the aromatic-lean mixture can be recycled to the feed prior to cracking.
US Patent 07883618 Recycle of olefinic naphthas by removing aromatics US Patent 7883618 Recycle of olefinic naphthas by removing aromatics
US Patent 07883618 Recycle of olefinic naphthas by removing aromatics
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