The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2012
Filed:
Aug. 20, 2008
Kerry L. Rock, Houston, TX (US);
Christopher C. Boyer, Houston, TX (US);
Lawrence A. Smith, Jr., Pasadena, TX (US);
Kerry L. Rock, Houston, TX (US);
Christopher C. Boyer, Houston, TX (US);
Lawrence A. Smith, Jr., Pasadena, TX (US);
Catalytic Distillation Technologies, Pasadena, TX (US);
Abstract
A process for reducing benzene content in a reformate stream, including: fractionating a full range reformate comprising benzene, Cto Cmonoalkyl aromatics, and Cpolyalkyl aromatics into at least three fractions including a light reformate fraction comprising the benzene; a medium reformate fraction comprising the Cto Cmonoalkyl aromatics; and a heavy reformate fraction comprising the Cpolyalkyl aromatics; feeding the light reformate fraction, the heavy reformate fraction and a transalkylation catalyst to a transalkylation reaction zone; contacting the light fraction and the heavy fraction in presence of the transalkylation catalyst in the transalkylation reaction zone to react at least a portion of the benzene with Cpolyalkyl aromatics to form monoalkyl aromatics; separating an effluent from the transalkylation reaction zone to form a catalyst fraction and a liquid fraction comprising the monoalkyl aromatics.