US 11,840,493 B2
Antifouling oligomerization catalyst systems
Motaz Khawaji, Thuwal (SA); Hussain Al Yami, Thuwal (SA); Sohel Shaikh, Dhahran (SA); Wei Xu, Dhahran (SA); and Kenji Sogo, Kuranamidai (JP)
Assigned to Saudi Arabian Oil Company, Dhahran (SA); and Sumitomo Chemical Company, Limited, Tokyo (JP)
Filed by Saudi Arabian Oil Company, Dhahran (SA); and Sumitomo Chemical Company, Limited, Tokyo (JP)
Filed on Jul. 23, 2021, as Appl. No. 17/383,725.
Application 17/383,725 is a division of application No. 15/393,865, filed on Dec. 29, 2016, granted, now 11,104,621.
Claims priority of provisional application 62/275,932, filed on Jan. 7, 2016.
Prior Publication US 2021/0347712 A1, Nov. 11, 2021
Int. Cl. B01J 31/00 (2006.01); C07C 2/32 (2006.01); B01J 31/12 (2006.01); B01J 31/02 (2006.01); C07C 2/30 (2006.01); B01J 31/14 (2006.01); B01J 31/22 (2006.01); B01J 31/06 (2006.01)
CPC C07C 2/32 (2013.01) [B01J 31/0212 (2013.01); B01J 31/123 (2013.01); B01J 31/143 (2013.01); B01J 31/2208 (2013.01); C07C 2/30 (2013.01); B01J 31/068 (2013.01); B01J 2231/20 (2013.01); B01J 2531/46 (2013.01); C07C 2531/14 (2013.01); C07C 2531/22 (2013.01)] 20 Claims
 
1. A catalyst system that reduces polymeric fouling, the catalyst system comprising:
at least one titanate compound;
at least one aluminum compound; and
at least one antifouling agent or a dimer, trimer, oligomer, polymer, or isomer, where the antifouling agent comprises the structure:

OG Complex Work Unit Chemistry
where R1, R2, and R3 are antifouling groups comprising the structure —O((CH2)nO)mR4, where:
n is an integer from 1 to 20;
m is an integer from 1 to 100; and
R4 is a hydrocarbyl group.