Inventors:
Kevin W. Lawson - Orange TX
Gary K. Scott - Beaumont TX
Wendell H. Snelson - Orange TX
Assignee:
Chevron Chemical Company - San Ramon CA
International Classification:
C08F 400
Abstract:
An injection system and method for feeding a particulate material to a process vessel, including a valve with at least one cavity adapted for receipt of a predetermined volume of particulate and a sweep stream source for providing a sweep stream having flow in a direction generally toward the valve to remove substantially all of the particulate from the cavity of the valve.