Removal of aromatic color bodies from aromatic hydrocarbon streams
AssigneeLyondell Petrochemical Company
InventorsStewart H. Presnall, Robert J. Haynal, Beverly B. Slimp, Jr., Martin P. Grosboll, Pamela A. Yanchik
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Abstract
This invention provides a process to remove aromatic color bodies, particularly oxygen or sulfur containing aromatics from a C.sub.8-11 aromatic hydrocarbon stream having a boiling range between about 160.degree.-460.degree. F. The process involves contacting the hydrocarbon stream with a neutral attapulgite clay for a time sufficient to adsorb the aromatic color bodies. The process is effective in reducing the APHA color value of the subject hydrocarbon stream from an initial 850-1100 value to about 400 or less.
Claims7
A process for removing aromatic color bodies from a hydrocarbon resin oil stream comprising 60% or more of C.sub.8-11 aromatics and having a boiling range between 160.degree.-460.degree. F. comprising the steps of contacting said hydrocarbon resin oil stream with an adsorbent consisting essentially of a neutral attapulgite clay for a time sufficient to purify said hydrocarbon resin oil stream, and collecting a purified resin oil.
A process for removing oxygenated aromatics from a hydrocarbon resin oil stream comprising 60% or more of C.sub.8-11 aromatics and having a boiling range between 160.degree.-460.degree. F. comprising the steps of contacting said hydrocarbon resin oil stream with an adsorbent consisting essentially of a neutral attapulgite clay for a time sufficient to purify said hydrocarbon resin oil stream, and collecting a purified resin oil.
A process for reducing the APHA reading of a hydrocarbon resin oil stream comprising 60% or more of C.sub.8-11 aromatics and having a boiling range between 160.degree.-460.degree. F. comprising the steps of contacting said hydrocarbon resin oil stream with an adsorbent consisting essentially of a neutral attapulgite clay for a time sufficient to reduce the APHA reading of said hydrocarbon resin oil stream to about 400 or less, and collecting said purified resin oil.
Dependencies are inferred from the claim text.