Staged-acidity reforming (C-2705)
AssigneeExxon Research & Engineering Co.
InventorsGary B. McVicker, John J. Ziemiak
Life of this patent
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Abstract
Staged-Acidity Naphtha Reforming provides increased C.sub.5+ liquid yields by systematically adjusting catalyst acidity within a multireactor reformer to match the different acid strengths required to selectively aromatize naphthene and paraffin hydrocarbon as they traverse the reformer train.
Claims6
A staged-acidity reforming process for the increased production of aromatic reformates comprising contacting a naphtha feed under reforming conditions in a plurality of sequentially arranged reaction zones each containing a reforming catalyst wherein said initial reaction zone contains a reforming catalyst having a relative acidity 2-50 fold greater than catalysts of subsequent reaction zones.
Dependencies are inferred from the claim text.