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:
Mar. 12, 2013
Filed:
Mar. 09, 2010
Martinus J. Almering, Houston, TX (US);
Purvis K. Ho, Houston, TX (US);
Mitchell E. Loescher, Tulsa, OK (US);
Montri Vichailak, Houston, TX (US);
Martinus J. Almering, Houston, TX (US);
Purvis K. Ho, Houston, TX (US);
Mitchell E. Loescher, Tulsa, OK (US);
Montri Vichailak, Houston, TX (US);
Catalytic Distillation Technologies, Pasadena, TX (US);
Abstract
A process for recovering benzene, the process including: feeding hydrogen and a hydrocarbon fraction comprising benzene, components lighter than benzene, components heavier than benzene, and diolefins to a catalytic distillation reactor system comprising at least one reaction zone comprising a hydrogenation catalyst; concurrently in the catalytic distillation reactor system: contacting the diolefins and hydrogen in the presence of the hydrogenation catalyst to selectively hydrogenate at least a portion of the diolefins; and fractionating the hydrocarbon fraction to form a fraction comprising benzene and other Chydrocarbons, and a heavies fraction comprising Chydrocarbons; recovering the heavies fraction from the first catalytic distillation reactor system as a bottoms fraction; and withdrawing the fraction comprising benzene and other Chydrocarbons from the catalytic distillation reactor system as a benzene concentrate fraction.