| 摘要 |
<p>A process for the removal of hydrocarbon contaminants, such as dienes and olefins, from an aromatics reformate by contacting an aromatics reformate stream with a hydrotreating catalyst and or a molecular sieve. The hydrotreating catalyst substantially converts all dienes to oligomers and partially converts olefins to alkylaromatics. The molecular sieve converts the olefins to alkylaromatics. The process provides an olefin depleted product which can be passed through a clay treater to substantially convert the remaining olefins to alkylaromatics. The hydrotreating catalyst has a metal component of nickel, cobalt, chromium, vanadium, molybdenum, tungsten, nickel molybdenum, cobalt nickel molybdenum, nickel tungsten, cobalt molybdenum or nickel tungsten titanium, with a nickel molybdenum alumina catalyst being preferred. The molecular sieve is an intermediate pore size zeolite, preferably MCM 22. The clay treatment can be carried out with any clay suitable for treating hydrocarbons.</p> |
