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US 11,786,889 B2Granted
Antifouling oligomerization catalyst systems
AssigneesSaudi Arabian Oil Company, Sumitomo Chemical Company, Limited
InventorsSohel Shaikh, Motaz Khawaji, Hussain Al Yami, Wei Xu
Life of this patent
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Abstract
A catalyst system that may reduce polymeric fouling may include at least one titanate compound, at least one aluminum compound, and an antifouling agent. The antifouling agent may be chosen from one or more of a phosphonium or phosphonium salt; a sulfonate or a sulfonate salt; a sulfonium or sulfonium salt; an ester including a cyclic moiety; an anhydride; a polyether; and a long-chained amine-capped compound. The catalyst system may further include a non-polymeric ether compound.
Claims9
A catalyst that reduces polymeric fouling, the catalyst comprising:
- at least one titanate compound;
- at least one aluminum compound;
- and an antifouling agent chosen from one or more of a phosphonium or phosphonium salt;
- a sulfonate or a sulfonate salt;
- a sulfonium or sulfonium salt;
- an ester comprising a cyclic moiety;
- an anhydride;
- a polyether;
- and a long-chained amine-capped compound, where the alkyl titanate has the structure Ti(OR)4, where R is a branched or straight chain alkyl radical comprising from 2 to 8 carbon atoms.
6 more elements
Dependencies are inferred from the claim text.