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:
Sep. 11, 2007
Filed:
Aug. 27, 2003
James W. Harris, Prospect Heights, IL (US);
Steven P. Rosenblum, Buffalo Grove, IL (US);
Michael A. Schultz, Chicago, IL (US);
Dennis E. O'brien, Arlington Heights, IL (US);
Douglas G. Stewart, Wheeling, IL (US);
James W. Harris, Prospect Heights, IL (US);
Steven P. Rosenblum, Buffalo Grove, IL (US);
Michael A. Schultz, Chicago, IL (US);
Dennis E. O'Brien, Arlington Heights, IL (US);
Douglas G. Stewart, Wheeling, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A control apparatus and control method for controlling the separation in a dividing wall distillation column of at least two feeds into at least three products is disclosed. The apparatus uses a temperature measuring device to measure the temperature of fluid in the column, a controller, and a means for adjusting the temperature of fluid in the column. The temperature measuring device may be on either side of the dividing wall or above or below the dividing wall, and more than one such device may be used. The apparatus and method may be used in the production of alkylaromatic hydrocarbons by alkylating aromatic hydrocarbons with olefinic hydrocarbons.