Inventors:
David H. Burns - Houston TX, US
Donald W. Verser - Houston TX, US
Elizabeth A. Benham - Spring TX, US
Max P. McDaniel - Bartlesville OK, US
John D. Hottovy - Humble TX, US
Dale A. Zellers - Bartlesville OK, US
Penny A. Zeller - Bartlesville OK, US
Clay K. Thurman - Bartlesville OK, US
David A. Lockman - Pawhuska OK, US
John O. Lawmaster - Bartlesville OK, US
Matthew T. Haberly - Copan OK, US
Thomas H. Smith - Dewey OK, US
Jerry T. Lanier - Bartlesville OK, US
Matthew G. Thorn - Mason OH, US
Assignee:
Chevron Phillips Chemical Company LP - The Woodlands TX
International Classification:
C08F 2/00, B01J 19/00, G05B 21/00, C08F 2/34
US Classification:
526 59, 526 65, 526 66, 526 64, 422131, 422105, 422132, 422134, 700269
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.