US 11,753,356 B2
Methods for operating ethylene oligomerization reactor systems with an integrated ultrasonic flow meter
Bruce E. Kreischer, Kingwood, TX (US); Kendall M. Hurst, Owasso, OK (US); Eric D. Schwerdtfeger, Bartlesville, OK (US); Steven M. Bischof, Humble, TX (US); Jared Fern, Kingwood, TX (US); Kent E. Mitchell, Bartlesville, OK (US); and James Hillier, Kingwood, TX (US)
Assigned to Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed by Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed on Nov. 22, 2022, as Appl. No. 18/57,803.
Application 18/057,803 is a continuation of application No. 17/469,986, filed on Sep. 9, 2021, granted, now 11,572,324.
Prior Publication US 2023/0081124 A1, Mar. 16, 2023
Int. Cl. C07C 2/32 (2006.01); B01J 8/10 (2006.01); B01J 8/18 (2006.01); C12M 1/34 (2006.01); B01J 8/00 (2006.01); B01J 19/00 (2006.01)
CPC C07C 2/32 (2013.01) [B01J 8/10 (2013.01); B01J 8/1809 (2013.01); B01J 8/1854 (2013.01); C12M 41/30 (2013.01); C12M 41/32 (2013.01); B01J 8/001 (2013.01); B01J 19/0006 (2013.01); B01J 19/0013 (2013.01); B01J 2208/00548 (2013.01); B01J 2208/00663 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An oligomerization reactor system comprising:
(A) a reactor configured to contact a catalyst system with ethylene, an organic reaction medium, and optional hydrogen under oligomerization conditions to produce an oligomer product;
(B) one or more reactor inlets configured to introduce the catalyst system, ethylene, and the organic reaction medium into the reactor;
(C) a reactor discharge line configured to withdraw an effluent stream containing the oligomer product from the reactor;
(D) an analytical system configured to determine an ethylene concentration in the reactor and/or in the reactor discharge line, the analytical system comprising an ultrasonic flow meter; and
(E) a controller configured to control an ethylene flow rate of the ethylene into the reactor, a catalyst system flow rate of the catalyst system into the reactor, a reaction temperature, a reaction pressure, or any combination thereof, based on the ethylene concentration determined by the analytical system.