Multiple component feed methods and systems

US8992840B2 · kind B2 · utility

Assignee

• Chevron Phillips Chemical Company LP · US

Inventors

• David H. Burns · Houston, US
• Donald W. Verser · Houston, US
• Elizabeth A. Benham · Bartlesville, US
• Max P. McDaniel · Bartlesville, US
• John D. Hottovy · Kingwood, US
• Dale A. Zellers · Bartlesville, US
• Clay K Thurman · Bartlesville, US
• David A. Lockman · Pawhuska, US
• John O. Lawmaster · Bartlesville, US
• Matthew T. Haberly · Copan, US
• Thomas H. Smith · Canton, US
• Jerry T. Lanier · Bartlesville, US
• Matthew G. Thorn · Lebanon, US

Key dates

• Filing date: Sep 8, 2009
• Grant date: Mar 31, 2015
• Expiry date: Jan 21, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/943
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Multiple components are selected, conveyed, and measured in a polymerization system. A control system adjusts the system variables to the desired values. Portions of the components can be fed to a pre-contactor before introduction into the polymerization reactor. The catalyst component concentrations and residence times are tightly controlled in the pre-contactor to affect product properties. The pre-contactor can be a single or multiple combinations of a CSTR or plug flow pre-contactors.