Abstract: A method for selectively separating benzene from gasoline boiling range streams by first passing the stream to an adsorption zone comprised of an adsorbent capable of selectively adsorbing benzene from the stream. A substantially benzene-free stream results and the adsorbent is regenerated by treating it with a desorbent solvent capable of desorbing benzene from the solid adsorbent.
Type:
Grant
Filed:
July 15, 1991
Date of Patent:
February 16, 1993
Assignee:
Exxon Research and Engineering Company
Inventors:
Bal K. Kaul, Joseph T. O'Bara, David W. Savage, J. Patrick Dennis, Bellows,Richard J., Edward Kantner